She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Programme Manager

Salary

£50k-£70k

Company Description

VC-backed safety tech scale-up

Job Description

You will lead a high-impact £3m annual deployment programme, delivering centimetre-accurate positioning technology to thousands of frontline workers. Overseeing a team of implementation managers, you'll manage end-to-end rollouts, navigate complex stakeholder environments, and drive cultural change within heavy industries to ensure life-saving technology is adopted effectively and safely.

Location

Remote, UK

Why this role is remarkable

• Join a mission-driven scale-up building award-winning positioning technology designed to save lives in hazardous work environments.
• Take full ownership of a major £3m deployment programme with the autonomy to design your own rollout playbook.
• Work for a well-funded company backed by top-tier venture capital, currently experiencing rapid revenue and headcount growth.

What you will do

• Manage the end-to-end rollout of safety hardware, including scheduling, training, and on-site adoption support for thousands of workers.
• Lead and coach a team of 3-5 Implementation Managers to ensure seamless day-to-day delivery and unblock operational challenges.
• Act as the primary customer interface, managing high-stakes relationships and reporting progress with transparency and integrity.

The ideal candidate

• A resilient operator with a background in startups or scale-ups who thrives in autonomous, hands-on environments.
• Proven experience managing hardware deployments, logistics, or scheduling for large blue-collar workforces in heavy industries.
• Exceptional communication skills with the ability to win over sceptics and drive cultural change among frontline operational teams.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

GTM Engineer

Salary

Not Disclosed

Company Description

Humaans is a $20M Series A London-based startup building AI-powered infrastructure for the workplace, backed by Y Combinator and the founders of Slack, Figma, and Shopify.

Job Description

You will build the automated infrastructure powering Humaans' go-to-market engine, sitting between RevOps, Sales, and Marketing. Instead of manual outreach, you’ll design data pipelines, AI agents, and enrichment workflows using Clay and HubSpot to find and engage customers at scale, replacing rep-dependent processes with high-leverage, non-linear systems.

Location

London, UK

Why this role is remarkable

• Full ownership of the GTM engineering stack, moving beyond standard RevOps reporting to build automated systems that drive real revenue growth.
• Join a $20M Series A team backed by legendary operators including Lachy Groom and the founders of Slack, Figma, and Shopify.
• Incredible career leverage at a high-bar startup redefining HR tech through an AI-native platform that orchestrates workflows across HR, IT, and Finance.

What you will do

• Architect and maintain complex data pipelines and enrichment workflows using Clay to turn raw signals into prioritized, actionable target accounts.
• Own the technical outbound infrastructure, managing cold email deliverability, inbox health, and large-scale personalization through AI agents and custom scripts.
• Partner with GTM leadership to identify manual bottlenecks and ship automated solutions in days, connecting systems via APIs and scripting (Python/JS).

The ideal candidate

• Hands-on experience building with a modern GTM stack, specifically Clay and HubSpot (or Salesforce), and a deep understanding of outbound motion.
• Proficient in SQL and a scripting language like Python or JavaScript to handle API integrations and data manipulation independently.
• A systems thinker with an experimental mindset who uses AI coding tools like Cursor or Claude Code to build and ship production-ready workflows.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Head of Operations at Caura.com - Fast-growth tech startup

Job Title

Head of Operations

Salary

Not Disclosed

Company Description

Caura.com - Fast-growth tech startup

Job Description

As Head of Operations, you will serve as the engine room of Caura, scaling a multi-vertical platform that simplifies car management for consumers and enterprise partners. You will own core operational pillars, engineering robust processes and ensuring strict FCA compliance while leading a high-performance team to deliver seamless service.

Location

London, UK

Why this role is remarkable

• Join a high-caliber team with pedigree from Apple, Bain, and PwC that values impact over noise and is backed by top-tier institutional investors.
• Play a pivotal role in scaling a platform that has already secured major enterprise partnerships with industry giants like esure and Lex Autolease.
• Experience rapid career acceleration by working directly with Founders and C-Suite executives in a hands-on, high-agency environment.

What you will do

• Design, test, and implement scalable operational workflows and AI tools to eliminate inefficiencies and manage complex, multi-vertical growth.
• Lead and mentor a high-performance operations team, fostering a culture of dependability and continuous improvement while maintaining strict FCA standards.
• Act as the primary operational interface for external enterprise clients and internal engineering teams to align technical roadmaps with commercial goals.

The ideal candidate

• Proven track record of delivering world-class operations within a fast-growth tech startup, preferably in financial services or business-critical apps.
• Rigorous professional foundation from a blue-chip institution such as consulting, investment banking, or a prestigious corporate graduate scheme.
• Exceptional analytical and first-principles thinking skills with an obsessive attention to detail and a high-agency approach to solving complex problems.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Support Engineer

Salary

Not Disclosed

Company Description

Boost Technology is a global platform powering FMCG manufacturers and last-mile distribution networks across Africa through strategic partnerships with Unilever and Mastercard.

Job Description

You will be the critical link between the engineering team and in-country operations across Africa. By triaging technical issues and shipping production code fixes in Python and SQL, you will ensure a seamless experience for thousands of informal retailers. This hands-on role combines technical troubleshooting with cross-cultural collaboration to drive digital transformation.

Location

Remote

Why this role is remarkable

• Work directly with experienced co-founders and a high-caliber engineering team to scale a platform already partnered with global giants like Unilever and Mastercard.
• Join a purpose-driven startup digitising supply chains for thousands of retailers previously excluded from the digital economy across Ghana, Nigeria, and South Africa.
• See your contributions move the needle immediately, as your code fixes and QA improvements directly impact the daily lives of last-mile distribution networks.

What you will do

• Triage, diagnose, and resolve complex technical issues by hunting down root causes in the codebase and surfacing best practices for distributed teams.
• Ship production-ready code fixes, tests, and platform improvements using Python (Flask) and PostgreSQL to enhance the overall customer experience.
• Own the QA and testing pipeline by building automated test suites that prevent regressions and ensure a reliable experience across the global platform.

The ideal candidate

• Possesses 2–3 years of experience in an engineering, product, or technical support role, ideally within a fast-paced startup environment.
• Demonstrates intermediate proficiency in Python (Flask) and SQL (PostgreSQL), with a strong desire to dive deep into code and infrastructure on AWS.
• Is a superb communicator capable of bridging the gap between technical requirements and non-technical customer needs across different cultures and timezones.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed + Equity

Company Description

Requesty Ltd is a $3M seed-funded London startup backed by 20VC and Tapestry VC. They are building the "Cloudflare for AI," an infrastructure gateway currently processing 75B+ tokens daily for enterprises like Shopify, Pfizer, and PWC.

Job Description

Join Requesty Ltd as a Founding Engineer to build the backbone of the AI era. You will design and scale a high-performance LLM gateway in Go, managing 75B+ daily tokens. This role offers direct influence over product architecture and company culture while working alongside the founders in a fast-paced London environment.

Location

London, UK

Why this role is remarkable

• Build the infrastructure layer for the AI-first economy, creating a "Cloudflare for AI" that powers mission-critical LLM applications for global enterprises.
• Join an elite team backed by $3M from top-tier investors like 20VC and Tapestry VC, already handling massive scale at 75B+ tokens per day.
• As a founding engineer, you will have significant equity and a direct hand in shaping the technical direction and culture of a growing startup.

What you will do

• Architect and build a high-performance LLM gateway using Go to route, load-balance, and secure AI traffic across 400+ providers.
• Optimize distributed systems to handle massive throughput while implementing features like real-time analytics, cost optimization, and PII scrubbing.
• Work directly with the founders to translate product vision into scalable infrastructure, shipping production-ready code daily in a pragmatic micro-service environment.

The ideal candidate

• Expert backend engineer with 5+ years of experience in compiled languages like Go, Rust, or C++, and a deep understanding of concurrency.
• Proven track record of designing and scaling pragmatic distributed systems, including experience with Kubernetes, SQL databases, and distributed caching mechanisms.
• Entrepreneurial mindset with the ability to balance speed and quality, ideally with previous experience in infrastructure-as-a-product or developer-facing platforms.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Deputy Chief Revenue Officer

Salary

Not Disclosed

Company Description

Fast-growing European proptech marketplace

Job Description

As the operational leader of the commercial engine, you will manage a 150+ person team across six countries. Partnering with a strategic fractional CRO, you will oversee Sales and Customer Success, driving the journey from €25M to €100M ARR. This role is perfect for a scaling expert who thrives on international operational complexity.

Location

Remote / Switzerland

Why this role is remarkable

• Partner with a high-profile strategic leader who previously scaled and exited a major industry player for €200M.
• Drive a massive scale-up phase from €25M to €100M ARR while expanding the footprint into four new international markets.
• High-impact leadership over a 150+ person cross-border organization with full P&L ownership and remote flexibility.

What you will do

• Manage and optimize the full P&L for Sales and Customer Success across all existing and new international markets.
• Lead and mentor country-level sales managers to ensure high productivity, pipeline health, and conversion optimization.
• Execute go-to-market strategies for new market launches, scaling the footprint from six to ten countries by 2028.

The ideal candidate

• Proven experience managing commercial teams of 100-200+ people within a marketplace, lead-generation, or subscription business model.
• Deep expertise in building and scaling outbound sales machines that consistently deliver 30%+ year-over-year revenue growth.
• Fluent in English and French, with a track record of managing complex operations across multiple European geographies.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

To apply, speak to Jack. He's an AI agent that sends you unmissable jobs and then helps you ace the interview. He’ll make sure you are considered for this role, and help you find others if you ask.

Title:
Staff AI Engineer at VC-backed AI fintech platform

Job Title

Staff Applied AI Engineer

Salary

Not Disclosed

Company Description

VC-backed AI fintech platform

Job Description

Lead the architectural scaling of a cutting-edge AI platform, transforming it into a high-reliability operational system for complex financial workflows. This Staff role involves defining strategic technical direction for core orchestration, evaluation, and data governance layers, acting as a technical force multiplier to build the gold standard for AI trust and reliability in a regulated environment.

Location

London, UK

Why this role is remarkable

• Rare chance to build a category-defining company in a high-stakes, regulated financial environment.
• Well-funded and backed by top-tier VCs, operating with a dual mandate of speed and continuous learning.
• Opportunity for end-to-end ownership, defining the gold standard for AI trust and reliability from the ground up.

What you will do

• Define and scale the core AI platform architecture, ensuring it supports rapid development of complex agentic workflows.
• Drive organizational quality and trust standards by owning the comprehensive evaluation framework and data governance.
• Provide technical leverage and leadership, unblocking ambiguous problems and mentoring other engineers.

The ideal candidate

• 8+ years in ML/software engineering, with 3+ years architecting and operating scaled production AI/ML systems.
• Proven track record in B2B SaaS backend architecture, especially with complex multi-user workflow orchestration.
• Deep expertise in distributed systems, high-volume Python backends, and designing for auditability in regulated environments.

How to Apply:

To apply for this job speak to Jack, our AI recruiter.

Step 1. Visit our website
Step 2. Click 'Speak with Jack'.
Step 3. Login with your LinkedIn profile.
Step 4. Talk to Jack for 20 minutes so he can understand your experience and ambitions.
Step 5. If the hiring manager would like to meet you, Jack will make the introduction.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Country Manager

Salary

€70,000 + €70,000 Bonus

Company Description

Realadvisor.com is a high-growth PropTech scale-up headquartered in Geneva with €17M in revenue, dedicated to bringing transparency to the €500B+ European real estate market. Operating across four countries with over 1 million monthly visitors, they provide homeowners with data-driven insights while empowering over 5,000 real estate agencies through smart technology.

Job Description

As Country Manager for Italy, you will act as the local CEO, taking full ownership of the P&L and a 15-person team. You’ll scale a market with €1.8M ARR, leveraging a proven playbook to grow the team to 50-60 FTEs while ensuring high-volume sales success across the Italian landscape.

Location

Remote, Europe

Why this role is remarkable

• Full P&L ownership of the Italian market, operating as a "local CEO" with the autonomy to build and scale your own high-performance commercial team.
• Join a PropTech scale-up with €17M revenue and 28% YoY growth, disrupting a €500B+ market with a framework already proven successful in three other countries.
• Scalability-focused role where you will grow an existing 15-person team to 60+ FTEs, directly impacting the company’s expansion and market leadership in Italy.

What you will do

• Manage the full commercial lifecycle for Italy, overseeing revenue targets, forecasting, and the end-to-end performance of SDR, BDR, and CSM teams.
• Execute the local growth strategy by hiring, training, and coaching a high-volume sales force to scale from 15 to 60 team members.
• Optimize sales processes and unit economics to maintain CM3 profitability while aggressively expanding the Italian client base of over 400 real estate agencies.

The ideal candidate

• 4-6+ years of experience in SaaS or digital tech sales, specifically focusing on high-volume, low-ticket SMB markets rather than enterprise-level deals.
• Proven track record of recruiting and coaching revenue teams and managing a P&L, ideally within a fast-paced startup or scale-up environment.
• Native-level fluency and deep cultural or professional experience in Italy, with the ability to lead a fully remote team based anywhere in Europe.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Product Designer

Salary

£82k-£104k + Equity

Company Description

Yonder is a London-based consumer fintech building an award-winning credit and debit membership that replaces dusty points systems with real-world rewards like dining and travel. Founded in 2021, Yonder prioritizes world-class design to make complex financial products feel effortless, flexible, and genuinely enjoyable for its growing member base.

Job Description

You will join as a senior designer owning product areas end-to-end within a lean squad. Working closely with engineers and PMs, you'll transform complex financial concepts into effortless, beautiful mobile experiences. From running research to sweating visual details, you'll play a pivotal role in shaping how members interact with their money and rewards.

Location

London, UK

Why this role is remarkable

• Join a design-led organization where your work directly impacts how members trust and interact with their finances through an award-winning, premium mobile interface.
• Experience true autonomy in a high-growth environment, working in lean squads to ship world-class native mobile experiences at a fast but intentional pace.
• Enjoy a high-spec culture featuring a Shoreditch office with a roof terrace, dog-friendly spaces, 35 days of holiday, and pour-over coffee made by the CEO.

What you will do

• Lead the end-to-end design process for your squad, taking ambiguous product problems from initial concept to high-fidelity, shipped mobile features.
• Conduct direct user research and usability testing to validate concepts and ensure every feature genuinely solves member pain points and builds trust.
• Evolve and maintain the Yonder design system, ensuring visual consistency across typography, layout, and complex interaction patterns to keep the app feeling premium.

The ideal candidate

• Proven track record shipping high-quality, consumer-facing native mobile applications with a deep understanding of mobile-specific design patterns and craft.
• Expert-level visual design skills, including typography, spacing, and hierarchy, with a "sweat the details" mentality for creating effortless user experiences.
• Highly collaborative generalist comfortable handling research, UX, UI, and content design independently while working shoulder-to-shoulder with engineering and product partners.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Lead Software Engineer (£100,000 - £120,000 + Equity) at Searchland.co.uk - VC-backed PropTech

Job Title

Lead Software Engineer

Salary

£100,000 - £120,000 + Equity

Company Description

Searchland.co.uk - Fuel Ventures backed PropTech SaaS

Job Description

As the most senior hands-on engineer, you will own the technical direction of the UK’s leading property data platform. Reporting to the CTO, you will lead a high-performing squad to scale a system processing terabytes of data. This backend-leaning role balances daily coding in Node.js and PostgreSQL with strategic architectural leadership.

Location

London, UK

Why this role is remarkable

• Direct impact as the senior technical heartbeat of a platform used by 2,000+ industry giants like land agents and major developers.
• Exceptional leadership pedigree, joining a team founded by the former Fanbytes CTO (acquired by Brainlabs) and backed by Fuel Ventures.
• High-ownership environment where you shape both the long-term technical roadmap and the engineering culture of a fast-growing 30-person team.

What you will do

• Provide architectural oversight across the full stack, specifically evolving complex Elasticsearch-driven architectures and heavy PostgreSQL data pipelines.
• Lead multidisciplinary squads and complex technical design discussions, balancing speed, scope, and scale for new feature delivery.
• Mentor senior and mid-level engineers through coaching and design reviews while contributing high-quality code to the React and Node.js codebase daily.

The ideal candidate

• 7+ years of software engineering experience with at least 2-3 years in a Lead, Staff, or Senior-plus leadership capacity.
• Deep technical expertise in the modern JavaScript ecosystem, specifically Node.js, Express, tRPC, React, and advanced PostgreSQL query optimization.
• Proven track record of scaling data-intensive SaaS platforms and leading engineering initiatives within a high-growth startup or scale-up environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Operations Associate

Salary

Not Disclosed + Equity

Company Description

Prometheux is an NVIDIA Inception-backed startup based in London, building a neurosymbolic ontology engine that serves as the data foundation layer for enterprises and AI systems in highly regulated sectors.

Job Description

As an early Operations Associate at Prometheux, you will work directly with the founders to build the operational backbone of a fast-growing AI company. You'll manage everything from hiring and finance to internal systems, wearing multiple hats to ensure the business scales efficiently across London, Rome, and San Francisco.

Location

London, UK

Why this role is remarkable

• Join a small, elite team of ten at the frontier of neurosymbolic AI, backed by world-class partners like NVIDIA Inception.
• Enjoy extreme ownership and impact by building foundational systems from scratch alongside founders who are shaping the future of data reasoning.
• Work at the intersection of drug discovery and banking supervision, solving critical explainability problems that standard AI cannot address.

What you will do

• Own and optimize day-to-day business operations across finance, legal, and people functions to support rapid scaling across global offices.
• Design and implement automated workflows and internal systems that create a seamless experience for both employees and enterprise customers.
• Lead end-to-end recruitment efforts and manage the London workspace to cultivate a high-performance culture during a period of rapid growth.

The ideal candidate

• Has 1–3 years of high-intensity experience in demanding environments like early-stage startups, management consulting, or investment banking.
• Demonstrates a proactive "figure-it-out" mindset, thriving in ambiguous settings where they must prioritize high-impact tasks without a manual.
• Possesses exceptional organizational skills and a low-ego approach to tackling both strategic projects and the necessary unglamorous work.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Investment / BD Associate

Salary

Not Disclosed

Company Description

Withroman.ai is an AI-native investment platform backed by partners like Alpine Investors and Thrive Holdings, building a specialized operating system to transform the $10 trillion lower middle market by amplifying human talent with intelligent agents.

Job Description

You will work directly with Withroman.ai’s founders across the full investment lifecycle, from researching high-conviction theses to sourcing proprietary deals. This role blends traditional private equity origination with cutting-edge AI development, allowing you to identify market opportunities, recruit elite executive leadership, and help build the platform’s core AI-native operating system.

Location

Brooklyn, USA

Why this role is remarkable

• Participate in a high-stakes apprenticeship alongside a founding team of former investors from Bank of America and Alpine Investors who have managed billions in capital.
• Join a platform partnered with powerhouse firms like Thrive Holdings and Shore Capital to modernize the massive lower middle market through proprietary AI technology.
• Gain a unique hybrid experience that combines deep-dive investment analysis and deal origination with foundational product building alongside world-class engineers from a16z and YC backgrounds.

What you will do

• Identify and cultivate authentic relationships with industry experts and business owners to accelerate high-conviction investment opportunities and proprietary deal flow.
• Research attractive markets to build actionable investment theses while evaluating live deals and defending clear recommendations to Roman’s partners.
• Collaborate directly with Engineering and Product teams to shape the AI-native operating system, ensuring the technology effectively amplifies human decision-making in real-world business building.

The ideal candidate

• Possesses 1-6 years of experience in high-octane environments such as investment banking, private equity, or top-tier consulting with a proven standard for excellence.
• Demonstrates a competitive character with a history of mastery in demanding settings and a relentless drive to act as a long-term owner.
• Exhibits exceptional people skills and a service-oriented mindset, motivated by the opportunity to build enduring businesses and create tangible value for others.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Organic Growth Lead

Salary

Not Disclosed + Equity

Company Description

Radical Health is a Khosla Ventures and Mayo Clinic-backed startup building an AI Cancer Doctor trained on over 1B multimodal events from top US cancer centers.

Job Description

As the Organic Growth Lead at Radical Health, you will own consumer patient acquisition end-to-end. You’ll build a world-class growth engine using AI-powered content systems, social media, and community-led initiatives to ensure every cancer patient discovers life-saving support. This is a high-impact role helping millions access expert-level treatment recommendations in minutes.

Location

San Francisco, USA

Why this role is remarkable

• Mission-critical impact: You are building the growth engine for an AI Cancer Doctor that delivers expert-level oncology recommendations to the 83% of patients who currently lack specialist access.
• Elite pedigree and backing: Join a team of ex-founders and DeepMind alumni backed by Khosla Ventures and the Mayo Clinic, working with a proprietary foundation model and an industry-leading 85 NPS.
• Extreme ownership: You will have the autonomy to scale organic channels from the ground up, utilizing cutting-edge AI automation to reach millions of patients across TikTok, Reddit, and social communities.

What you will do

• Build and scale AI-native content systems that generate millions of organic views across high-performing social channels like TikTok, Facebook, and Reddit.
• Drive patient referrals and word-of-mouth growth by engaging with community-led initiatives and trusted cancer support groups to establish deep brand trust.
• Experiment rapidly with AI workflow automation tools to increase the speed and quality of content creation while maintaining high creative standards.

The ideal candidate

• 5+ years of experience in organic growth or content marketing at breakout consumer companies, ideally with a track record of scaling engines to tens of millions of views.
• AI-native practitioner who is highly comfortable using workflow automation and generative tools to multiply output and iterate on data-driven insights.
• High-velocity executor with strong creative taste who can ship content fast and thrives in a 100% in-person, founder-heavy startup environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Tech Lead

Salary

$185k-$485k + Profit Sharing

Company Description

Y Combinator is the world's most influential startup accelerator, having backed global category leaders like Airbnb, Stripe, and Dropbox. Based in San Francisco, YC funds approximately 500 startups annually. Their internal software team builds the essential tools—ranging from founder platforms to AI-driven evaluation agents—that power the entire venture ecosystem.

Job Description

Join Y Combinator as a Tech Lead on a 15-person full-stack team at the Dogpatch campus. You will own significant product roadmap segments, architecture, and end-to-end feature shipping for tools like Bookface and AI-driven admissions systems. Work directly with partners to build software that scales YC’s ability to fund and support the world's best founders.

Location

San Francisco, USA

Why this role is remarkable

• Build the digital backbone of the most prestigious startup accelerator, influencing how hundreds of new companies are funded and supported every single year.
• Work in a high-impact, small-team environment at YC’s San Francisco campus, collaborating directly with partners who have scaled the world's largest tech companies.
• Experience an unparalleled vantage point of the startup ecosystem while enjoying a highly competitive $185k-$485k base salary and a unique profit-sharing model.

What you will do

• Lead architectural decisions and end-to-end feature development using a full-stack of Ruby on Rails, React, and Postgres.
• Develop and deploy sophisticated AI agents to help YC partners evaluate over 100,000 annual applications and provide better support to founders.
• Collaborate directly with founders and internal partners to translate operational needs into scalable product features for the Bookface platform.

The ideal candidate

• Demonstrates a dual background of fast-paced startup experience and proven technical leadership within a larger, scale-oriented engineering organization.
• Holds a rigorous Computer Science degree from a top-tier US undergraduate program or the University of Waterloo, ensuring a strong foundational understanding of software principles.
• Possesses a builder mindset with a deep focus on product impact, technical excellence, and the ability to ship high-quality full-stack code independently.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Manager, Commercial Customer Success

Salary

$155k-$219k

Company Description

Windfall Data, Inc. is a people intelligence and AI company that recently closed a $65M Series B to transform how 1,500+ organizations use machine learning for go-to-market strategies.

Job Description

As the Manager of Commercial Customer Success at Windfall Data, Inc., you will lead and mentor a team of five CSMs dedicated to scaling the commercial vertical. You'll act as a strategic player-coach, building the playbooks and systems necessary to drive product adoption, account expansion, and high-impact business outcomes for customers.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-growth AI powerhouse that recently secured $65M in Series B funding to accelerate its market-leading people intelligence platform.
• Direct impact on the strategic direction of the Commercial vertical, building the processes and systems that will scale the Customer Success organization for years to come.
• Work in a values-driven environment alongside the leadership team at our San Francisco headquarters, where customer success is viewed as a primary strategic engine.

What you will do

• Lead and mentor a team of five Customer Success Managers, coaching them on account growth strategies, multi-threading, and executive relationship management.
• Drive the end-to-end customer lifecycle, from onboarding to strategic expansion, while leading Executive Business Reviews with C-level and SVP sponsors focused on ROI.
• Build and implement scalable internal playbooks, customer-facing content, and process improvements to enhance the overall effectiveness of Windfall’s commercial offerings and product roadmap.

The ideal candidate

• 8+ years of experience in analytical, customer-facing roles like CS or consulting, including at least 3 years of experience successfully leading and coaching teams.
• Proven track record of navigating complex B2B SaaS organizations, driving land-and-expand revenue growth, and building strong relationships with executive-level stakeholders.
• Deep expertise in data intelligence and GTM strategies, with the operational rigor to manage complex pipelines and forecasts within modern CRM platforms like Salesforce.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior AI QA Engineer

Salary

£60,000-£70,000

Company Description

Chip Financial Ltd is an FCA-regulated high-growth fintech building the UK’s premier investment super app for over 500,000 users. Focused on AI-driven wealth management, the company is scaling its platform to offer intelligent, personalized financial tools within a robust, distributed microservices architecture on AWS.

Job Description

Join Chip Financial Ltd to lead quality for our AI-driven wealth management platform. You will own the strategy for non-deterministic, LLM-powered features, building automation frameworks and performance testing suites across a TypeScript microservices architecture. This is a high-impact role for an engineer who excels at shifting quality left in a fast-paced environment.

Location

London, UK

Why this role is remarkable

• Lead the quality strategy for a cutting-edge investment super app, moving beyond traditional test cases to shape how a regulated fintech delivers AI-driven personalization.
• Tackle unique engineering challenges by validating non-deterministic agentic systems, managing LLM hallucinations, and ensuring safety in a probabilistic wealth management environment.
• Join a high-traction, FCA-regulated scale-up with 500k+ users and a fast-moving culture that rewards ownership, independence, and an early Friday finish.

What you will do

• Define and execute the end-to-end quality strategy for the Wealth Management business line, embedding testing early in the architecture and product design phases.
• Architect and scale automated testing frameworks for TypeScript microservices and APIs on AWS, enabling developer self-sufficiency and maintaining high-velocity CI/CD pipelines.
• Own performance testing using tools like K6 to design realistic load models, analyze results, and partner with engineering to optimize distributed system reliability.

The ideal candidate

• Brings over 7 years of QA experience with a track record of owning quality strategy for complex, modern service-oriented architectures rather than just executing plans.
• Possesses deep technical proficiency in TypeScript or a similar language, with hands-on experience building automated test suites for distributed microservices and AWS infrastructure.
• Demonstrates a strong understanding of testing AI systems, including validation strategies for non-deterministic outputs, output quality scoring, and proactive observability using tools like Datadog.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Forward Deployed Software Engineer

Salary

$120K - $150K + $400K Equity

Company Description

Arzana is a YC P26 startup building the AI front office for mid-market American manufacturers. Their agents automate mission-critical workflows like quoting and order entry for companies doing up to $500M in revenue, directly integrating with ERP systems like Epicor and NetSuite to modernize the backbone of American industry.

Job Description

As one of the first engineers at Arzana, you will bridge the gap between messy operational reality and reliable automation. You will embed with manufacturers on the shop floor, scope features end-to-end, and ship production code using Next.js and Python. This role defines how Arzana scales while delivering massive efficiency gains to operators.

Location

New York City, USA

Why this role is remarkable

• Join a fast-growing YC P26 startup as one of the first engineering hires, reporting directly to the founders and defining the company's operational DNA.
• Deliver massive tangible impact by cutting order processing times from hours to minutes for manufacturers that run the country’s physical infrastructure.
• Receive a highly competitive package including $120K-$150K salary and a significant $400K equity stake with relocation support to New York City.

What you will do

• Embed directly with customers at manufacturing facilities to understand complex RFQ flows and translate operational friction into automated software solutions.
• Ship end-to-end features, from agent configuration and ERP integrations to migration scripts, maintaining full ownership of everything you scope and build.
• Drive the core product roadmap by identifying breakage and opportunities on-site before anyone else, ensuring the product evolves with real-world manufacturing needs.

The ideal candidate

• Possesses 0-3 years of software engineering experience and a degree from a top CS program, with a genuine passion or background in American manufacturing.
• Demonstrates full-stack proficiency in Python, Next.js, and PostgreSQL, with the ability to quickly master LLM orchestration and complex agent workflows.
• Maintains exceptional interpersonal skills to build immediate trust with C-suite operators and a builder bias that prioritizes shipping high-quality code at speed.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Game Engineer

Salary

£90k–£130k + Equity

Company Description

Pebble is a London-based startup founded by former Google and Synthesia leaders building the first generative learning world for children. The team is creating a 3D exploration game where kids interact with an unscripted AI companion, bridging the gap between passive digital content and active, educational play.

Job Description

As the first game engineer, you will own the gameplay and engine architecture for an AI-driven 3D world. You'll build generative systems and procedural environments that adapt to each child's needs in real-time. This is a rare opportunity to define the engineering foundation of an entirely new category of interactive education.

Location

London, UK (Remote Friendly)

Why this role is remarkable

• Founding role with the autonomy to set the architectural standards and engineering culture for a high-potential AI startup from day one.
• Led by an elite founding team including the first product hire at Synthesia (scaled $3M-$100M ARR) and the founder of Neoplants ($25M+ raised).
• Work at the cutting edge of AI and gaming by building complex procedural generation systems where AI is the core product, not just a feature.

What you will do

• Architect and own the gameplay systems, procedural world generation, and progression mechanics within a live Unity-based 3D environment.
• Collaborate with AI engineers to integrate open-ended voice and LLM-driven companion behaviors directly into the real-time game loop.
• Develop high-performance systems and internal tooling to ensure a coherent, responsive experience for children while maintaining strict frame budgets.

The ideal candidate

• Extensive experience shipping 3D games or real-time products, with deep expertise in Unity (C#) and core engine systems.
• Proven track record building complex procedural or generative systems and managing the performance/memory constraints of live-service games.
• Enthusiastic adopter of AI-driven development workflows who is passionate about creating safe, engaging, and educational digital experiences for children.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Backend Engineer (AI Agents) (€100k-€160k + Equity) at Maze - Series A AI Cybersecurity Startup

Job Title

Backend Engineer (AI Agents)

Salary

€100k-€160k + Equity

Company Description

Maze - Series A cybersecurity startup building autonomous AI agents

Job Description

Join a high-caliber engineering team building autonomous AI agents that investigate and resolve cloud security vulnerabilities for Fortune 200 companies. As the second dedicated hire for the AI Agents team, you will design and scale production-grade agentic systems, moving beyond LLM prototypes to build sophisticated, multi-step autonomous decision loops that solve critical security risks.

Location

Remote, UK/EU

Why this role is remarkable

• Work at the bleeding edge of AI by moving past simple wrappers to build true agentic architectures with planner-executor patterns and autonomous decision-making loops.
• Join a proven leadership team with deep experience in Big Tech and successful exits, backed by $25M in Series A funding from Theory Ventures.
• Gain immense ownership in a lean, elite team of 30 where you will directly influence the architecture of a product already serving global enterprise customers.

What you will do

• Design and implement backend systems that support complex, multi-step agentic workloads and tool-calling architectures using Python and AWS.
• Take end-to-end ownership of the development lifecycle, from initial AI agent prototyping to deploying scalable production services.
• Collaborate with senior leaders and founding engineers to optimize application performance, security, and reliability for high-stakes cybersecurity environments.

The ideal candidate

• 7+ years of professional backend development experience, with a mastery of Python and cloud-native architectures on AWS.
• Proven track record of productionizing AI agents or complex LLM workflows using frameworks like LangChain, LangGraph, or LlamaIndex.
• Strong systems design background with experience in asynchronous processing, event-driven architectures, and building robust evaluation frameworks for AI performance.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

$230k-$250k + Equity

Company Description

Valon Technologies, Inc. is a Series C fintech backed by a16z building an AI-native operating system for regulated finance. After proving their platform by managing $110B+ in loans with 60%+ margins, they are now deploying their unified mortgage servicing software to major enterprises across the industry.

Job Description

Join Valon Technologies, Inc. to build the foundational infrastructure for regulated finance. You will develop robust, scalable systems in Python and React that manage billions of dollars while navigating complex federal regulations. Working alongside a senior team from Stripe and Google, you’ll ship high-impact software that transforms archaic financial sectors into programmable, AI-ready operations.

Location

New York/San Francisco, USA or Remote

Why this role is remarkable

• Work on a mission-critical "AI-native operating system" for the $11T mortgage industry, backed by top-tier investors like Andreessen Horowitz.
• Join a high-density talent environment with engineers from Jane Street, Stripe, and Meta, offering unparalleled peer learning and technical autonomy.
• Solve genuine complexity by building software that encodes rigid federal regulations into extensible codebases, rather than just building on legacy wrappers.

What you will do

• Design and build robust, extensible infrastructure capable of handling $110B+ in loans and evolving state and agency compliance requirements.
• Collaborate cross-functionally with Product and Design to create seamless, data-rich experiences for enterprise clients and mortgage customers.
• Scale backend services using Python, Docker, and Kubernetes on Google Cloud Platform to maintain 100% accuracy in high-stakes financial transactions.

The ideal candidate

• Has 4+ years of professional software engineering experience building and scaling quality applications in complex, production-grade environments.
• Demonstrates strong proficiency in Python or similar backend languages, with a track record of designing scalable distributed systems from scratch.
• Possesses the communication skills and intellectual curiosity required to navigate the intersection of technical architecture and highly regulated financial industries.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Platform Engineer

Salary

$180k-$250k + Equity

Company Description

GovSignals is an AI system of work for government contracting, uniquely authorized for FedRAMP High and IL5 environments. Managing billions in contract data, the company monitors over 5,000 government sources to close the gap between capability procurement and adversary deployment for mission-critical agencies and Fortune 500 primes.

Job Description

Join GovSignals as a founding platform engineer owning the data and deployment infrastructure for AI-driven government contracting. You will scale ingestion for 10,000+ data sources, manage secure environments across AWS GovCloud and Cloudflare, and build agentic harnesses that power billions in contract volume. This role directly impacts national security infrastructure.

Location

New York, USA

Why this role is remarkable

• Join as a founding member of the platform team, working directly with the CTO and co-founders from Palantir and the DIA to own the core infrastructure.
• Work in a high-stakes environment as the only startup managing government data with AI across both FedRAMP High and DoD Impact Level 5 settings.
• Build in the historic Brooklyn Navy Yard for a well-funded startup that has achieved massive regulatory milestones and onboarded household names in under two years.

What you will do

• Build and scale the ingestion and storage infrastructure for 10,000+ government data sources using Postgres logical replication and object storage on S3 and R2.
• Ship a single codebase to diverse environments including commercial SaaS on Cloudflare Workers and self-hosted Kubernetes in AWS GovCloud for restricted networks.
• Develop infrastructure where AI agents are first-class users, including agentic harnesses that support billions in government contract volume and automated remediation loops.

The ideal candidate

• Has 5+ years of experience in backend or platform engineering with deep expertise in Postgres internals and Kubernetes in production environments.
• Brings a security-first mindset and proven experience taking complex systems through real scale, such as significant migrations or major throughput walls.
• Demonstrates proficiency in TypeScript or Python and a heavy reliance on AI tools to accelerate work within regulated or highly sensitive environments.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Infrastructure engineer

Salary

$139.8K – $273.7K + Equity

Company Description

Writer Inc. is a $1.9B enterprise generative AI leader building a full-stack platform—including proprietary LLMs and orchestration—backed by ICONIQ Growth and Radical Ventures.

Job Description

Join Writer Inc. to own the reliability and performance of a mission-critical AI platform serving Fortune 500 giants like Uber and Vanguard. You will architect multi-cloud infrastructure, automate complex operational tasks using Python or Go, and integrate agentic AI tooling into your daily engineering workflow to scale our $1.9B platform.

Location

New York City, USA; San Francisco, USA; Seattle, USA

Why this role is remarkable

• Work at a $1.9B category leader that owns the entire AI stack—from proprietary LLMs to the orchestration layer—rather than just wrapping existing models.
• Join a high-growth environment backed by premier investors like ICONIQ Growth and Radical Ventures, powering mission-critical workflows for companies like Mars and Vanguard.
• Pioneer "AI in workflow" practices, using agentic tools like Claude Code and Droid to compound team throughput and redefine modern infrastructure engineering.

What you will do

• Own the reliability, performance, and multi-cloud infrastructure for ~100 microservices on Kubernetes across AWS, GCP, and Azure using Terraform and Helm.
• Lead critical initiatives across SRE, DevOps, and Platform engineering, focusing on automating away toil and designing resilient, self-healing systems.
• Drive incident response and post-mortems, tracing failures to root causes to ensure the platform meets the strict 24/7 demands of enterprise customers.

The ideal candidate

• Brings 5+ years of experience operating large-scale production infrastructure and Kubernetes clusters within a high-growth, fast-paced product company.
• Possesses deep proficiency in Infrastructure as Code (Terraform/Pulumi) and automation programming in Python or Go, with a strong focus on "via negativa" simplicity.
• Already integrates AI-assisted workflows and agentic tooling into their daily shipping process, with clear opinions on where these tools excel and fail.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Backend Engineer

Salary

Not Disclosed + Equity

Company Description

VC-backed AI retention platform

Job Description

As a Backend Engineer at this VC-backed AI startup, you will build the core infrastructure powering intelligent agents that solve subscriber churn for consumer brands. You will design robust APIs, architect databases, and integrate third-party platforms. Working alongside experienced founders, you’ll own significant surface area and help shape a high-performance engineering culture.

Location

San Francisco, USA

Why this role is remarkable

• High-impact ownership within a lean, 15-person team where every engineer shapes the core product and architecture.
• Strong traction and financial stability, backed by top-tier VCs with a clear mission to solve churn for global brands.
• An in-person, high-trust environment in San Francisco that fosters rapid iteration and direct collaboration with world-class founders.

What you will do

• Design and maintain the core infrastructure, including APIs and database schemas, that powers production-ready AI agents.
• Build and manage complex integrations with third-party platforms to enable seamless data flow for consumer brand clients.
• Collaborate directly with the founding team to architect scalable systems and define the long-term technical roadmap.

The ideal candidate

• At least 1 year of professional experience in backend development with a focus on server-side logic and performance.
• Strong fundamentals in database management and API design, with an ability to ship reliable, high-quality code quickly.
• A proactive, owner-mindset with a drive to solve complex problems and thrive in a fast-paced, in-person startup environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

AI Engineer (Generalist)

Salary

$180K-$250K + Equity

Company Description

BUILD, Inc. is a seed-stage venture creating the agentic AI stack for institutional real estate, backed by Index Ventures and c-suite leaders from OpenAI and Blackstone. Already generating 7-figure revenue, the team is automating complex development and acquisitions workflows 90% faster than traditional human processes for trillion-dollar asset managers.

Job Description

You will own end-to-end agentic workflows, from prototype to production, building visual reasoning and multi-agent systems that solve real-world problems. Partnering with domain experts and institutional customers, you’ll translate complex real estate tasks into high-performance software, driving the next generation of automation for the built world’s most significant projects.

Location

San Francisco, USA

Why this role is remarkable

• Work at the frontier of agentic AI with a team including leadership experience from 11x.ai’s rapid scale-up and backing from heavyweights like Index Ventures.
• Experience radical autonomy and high-stakes ownership in a seed-stage startup that has already achieved 7-figure revenue and is rapidly approaching 8-figures.
• Solve hard, unsolved problems where AI meets the physical world, directly impacting massive global infrastructure, energy, and industrial projects through autonomous workflows.

What you will do

• Design, build, and deploy production-grade AI agents using Python and LangGraph to handle complex, long-running real estate development workflows.
• Own and ship full-stack features end-to-end, managing everything from backend agent reasoning logic to polished, high-utility frontend user surfaces.
• Collaborate directly with institutional customers to translate multi-week manual processes into automated outcomes that scale across trillion-dollar asset portfolios.

The ideal candidate

• Has 3-5 years of engineering experience, ideally within high-growth vertical AI companies or elite engineering cultures like Ramp, Scale AI, or Glean.
• Demonstrates a proven track record of shipping production-grade LLM or agentic systems that deliver measurable value to real-world end users.
• Possesses full-stack capabilities with a strong "startup DNA," excelling in fast-moving, ambiguous environments where they can drive projects from concept to completion.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Full-Stack Engineer

Salary

$120k–$140k + Equity

Company Description

Emporium AI is an early-stage AI startup in New York City building at the intersection of commerce and artificial intelligence. Backed by experienced builders, the company empowers a small, fast-moving team to ship high-impact features end-to-end, leveraging AI to redefine how users interact with modern commerce platforms.

Job Description

Join Emporium AI as a Full-Stack Engineer to build products from spec to deployment using TypeScript, React, Node.js, and PostgreSQL. You will own features across the entire stack, touching the frontend, API layer, and database. This high-autonomy role is designed for a builder who wants to ship code weekly in a fast-paced environment.

Location

New York, USA

Why this role is remarkable

• True ownership of features from technical specification through to production deployment in a high-autonomy, early-stage environment.
• Direct impact on the product direction at the cutting-edge intersection of commerce and artificial intelligence within a small, elite engineering team.
• Opportunity to work alongside experienced builders in a hybrid NYC setting where weekly shipping cycles and minimal process are the norm.

What you will do

• Develop and maintain end-to-end features using a modern stack including TypeScript, React, Node.js, and PostgreSQL.
• Collaborate with the team to define product specs and translate them into scalable technical implementations across the frontend and backend.
• Iterate rapidly on consumer or B2B products, ensuring high performance and reliability while shipping code to production on a weekly basis.

The ideal candidate

• 1–3 years of production experience building and shipping web applications with modern full-stack JavaScript/TypeScript and PostgreSQL.
• Proven track record of taking features from concept to launch in a startup or high-growth environment, showing strong ownership.
• Strong proficiency in React and Node.js, with additional experience in Next.js and GraphQL considered a significant advantage.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Full-Stack Engineer

Salary

Not Disclosed

Company Description

Early-stage NYC tech startup

Job Description

Join a fast-paced team building product from the ground up. As a Full-Stack Engineer, you will own features end-to-end using TypeScript, React, Node.js, and PostgreSQL. You’ll play a pivotal role in shaping both the product and engineering culture while delivering high-quality solutions to real users in a collaborative hybrid environment.

Location

New York City, USA

Why this role is remarkable

• True end-to-end ownership over product features and technical decisions.
• Backed by top-tier VCs at an exciting early stage of growth.
• Directly influence engineering culture and product direction from the ground up.

What you will do

• Scope, build, and deploy high-impact features across the full stack.
• Collaborate on product strategy and turn outcomes into technical realities.
• Iterate on consumer and B2B products using modern web technologies.

The ideal candidate

• 3 to 5 years of professional engineering experience with a modern web stack.
• Proven track record of shipping production-ready products to real users.
• Strong proficiency in TypeScript, React, Node.js, and PostgreSQL, with familiarity in Next.js or GraphQL.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

To apply, speak to Jack. He's an AI agent that sends you unmissable jobs and then helps you ace the interview. He’ll make sure you are considered for this role, and help you find others if you ask.

Title:
Full-Stack Software Engineer at Fast-growing voice AI startup

Job Title

Full-Stack Software Engineer

Salary

Not Disclosed

Company Description

Fast-growing voice AI startup

Job Description

Join a stealth startup building the next generation of voice AI products for small businesses. As a Full-Stack Software Engineer, you'll have high ownership, directly contributing to our voice AI platform's product experience. We seek a driven, product-minded engineer ready to make an immediate impact from day one.

Location

Remote

Why this role is remarkable

• High degree of ownership and direct impact on a cutting-edge voice AI product.
• Opportunity to shape the foundational technology of a next-generation platform.
• Work with a lean, agile team in a fast-paced, innovative startup environment.

What you will do

• Develop and implement features across the full stack using Node.js and Next.js.
• Integrate with various 3rd party systems like payments, CRMs, and scheduling software.
• Contribute to a best-in-class voice experience for business owners.

The ideal candidate

• 2+ years of software engineering experience with Node.js, Next.js, and JavaScript frameworks.
• Strong product sense and an appreciation for well-designed products and apps.
• Excellent English communication skills and a relevant degree in Computer Science or related field.

How to Apply:

To apply for this job speak to Jack, our AI recruiter.

Step 1. Visit our website
Step 2. Click 'Speak with Jack'.
Step 3. Login with your LinkedIn profile.
Step 4. Talk to Jack for 20 minutes so he can understand your experience and ambitions.
Step 5. If the hiring manager would like to meet you, Jack will make the introduction.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer

Salary

Not Disclosed

Company Description

Nidus is a well-backed seed-stage startup building an AI-first, software-defined manufacturing platform to revitalize American industrial production. Founded by experts from defense tech and AI, Nidus combines robotics, ML infrastructure, and cloud systems to turn complex assembly work into reliable, software-driven telemetry and throughput.

Job Description

As a Senior Software Engineer at Nidus, you will architect the backend systems and data pipelines powering the factory of the future. You'll build hybrid cloud and on-prem services that maintain uptime in high-stakes industrial environments. This is a hands-on, founding-team role driving the software backbone for autonomous, localized manufacturing.

Location

New York City, USA

Why this role is remarkable

• Join a high-ownership founding team in NYC, working directly with founders to solve the structural challenges of US manufacturing.
• Work in a unique environment where world-class robotics researchers, mechanical engineers, and defense-tech software veterans collaborate under one roof.
• Build mission-critical systems where reliability is paramount, applying industrial-grade discipline to petabyte-scale visual data pipelines and ML infrastructure.

What you will do

• Design and implement multi-compute architectures spanning embedded devices, on-prem factory services, and cloud-based backend systems.
• Build petabyte-scale visual data pipelines for ingesting, indexing, and preparing manufacturing data for machine learning workflows.
• Develop resilient infrastructure-as-code and observability tools that ensure high uptime and performance in noisy industrial production environments.

The ideal candidate

• Has 3–6 years of experience building and shipping production-grade software with a focus on backend systems, infrastructure, or data at scale.
• Possesses deep expertise in hybrid cloud/edge environments and is comfortable managing complex systems that handle terabytes to petabytes of data.
• Thrives in an in-person, fast-iterating startup culture and is capable of owning technical direction from architecture to end-to-end execution.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

People & Talent Lead

Salary

$120k-$165k + Equity

Company Description

VC-backed creator economy platform

Job Description

As the first People & Talent hire, you will build the talent acquisition function and people operations foundation from scratch. You'll partner with founders to source top-tier talent, design interview processes, and manage global people operations across multiple geographies. This is a hands-on role defining the culture and scaling a high-growth organization.

Location

New York, USA

Why this role is remarkable

• You are the first dedicated People hire, giving you full ownership to design the talent machine and people strategy without legacy constraints.
• The company is well-funded by top-tier VCs and has achieved significant market traction, reaching profitability while scaling rapidly across multiple regions.
• You will work directly with the founding team to define the organizational character and culture of a breakout company in a new market category.

What you will do

• Design and execute end-to-end recruitment for GTM, engineering, and operations roles to scale the global team.
• Build the people operations foundation, including onboarding, payroll, compensation frameworks, and international compliance.
• Cultivate the company culture and team rituals to maintain high engagement across a distributed, international workforce.

The ideal candidate

• Proven experience in talent acquisition and people operations at a high-growth startup, specifically building functions from the ground up.
• Strong operational mindset with the ability to manage complex cross-border employment and payroll across the US and Europe.
• Exceptional judgment in identifying high-caliber talent and a track record of closing candidates in competitive markets.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Engineering Manager, Platform - Cloud Infrastructure

Salary

$241.5K - $284K + Equity

Company Description

Valon Technologies, Inc. is a Series C fintech backed by a16z, building an AI-native operating system for regulated finance. Having built a mortgage servicing business managing $110B+ in loans, they are transforming complex legacy industries with a modern software stack that has successfully improved operating margins from 0% to over 60%.

Job Description

As Engineering Manager for Cloud Infrastructure at Valon Technologies, Inc., you will lead a high-impact team of five engineers managing production systems handling 100M+ daily jobs. You'll drive technical strategy for scalability and reliability, scale the platform 10x over two years, and bridge the gap between complex infrastructure and rapid product innovation.

Location

New York / San Francisco, USA (Remote Optional)

Why this role is remarkable

• Lead the foundational infrastructure for a platform managing $110B+ in assets, with concrete plans to scale the system 10x over the next two years.
• Join a high-caliber team of engineers from top-tier firms like Stripe, Jane Street, and Meta in a Series C company backed by top-tier investors like a16z.
• Enjoy a high-agency culture where you act as a hands-on technical leader, influencing architecture and strategy for next-gen data stores like Vitess, Clickhouse, and Redis.

What you will do

• Manage and grow a team of 5+ infrastructure engineers, overseeing technical strategy for compute, databases, storage, and networking across all production environments.
• Architect and implement production-scale systems and batch processing control planes to support massive daily growth in background job execution and data volume.
• Collaborate cross-functionally with product and operations to build high-leverage infrastructure that unlocks rapid product iteration while maintaining world-class reliability and security standards.

The ideal candidate

• 4+ years of software engineering experience with at least 1+ years in a dedicated technical leadership or engineering management role in a high-growth environment.
• Deep expertise in cloud providers, containerization using Kubernetes and Docker, and distributed systems capable of handling high-volume background processing and complex data stores.
• Strong systems thinker with a product mindset and a proven track record of mentoring engineers through a feedback-driven, high-performance culture focused on continuous development.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Machine Learning Engineer: LLM Interpretability & Systems

Salary

$175K – $250K + Equity

Company Description

CTGT, Inc. is a venture-backed startup born out of Stanford University research, providing a deterministic governance layer for enterprise AI. Backed by Google’s Gradient Ventures, General Catalyst, and Y Combinator, CTGT, Inc. builds the control plane that enables Fortune 500 institutions to deploy generative AI workflows with auditability and confidence.

Job Description

As a Machine Learning Engineer at CTGT, Inc., you will work deep within the model stack to make generative AI deterministic and reliable. You’ll apply mechanistic interpretability techniques to model weights and activations, building the policy engine that enforces real-time governance for high-stakes enterprise applications at the edge of AI research.

Location

San Francisco, USA

Why this role is remarkable

• Bridge the gap between frontier AI research and real-world production by implementing mechanistic interpretability techniques like activation patching and control vectors.
• Join a high-growth team backed by elite investors including Google’s Gradient Ventures, General Catalyst, and Y Combinator with significant equity upside.
• Develop the core deterministic governance layer required by the world's largest institutions to safely deploy generative AI at scale.

What you will do

• Operationalize mechanistic interpretability research into production-ready code that improves model behavior through direct internal interventions.
• Design and optimize feature-level intervention systems that enable real-time, auditable policy enforcement during model inference.
• Build robust evaluation and deployment loops to ensure model changes are reliably shipped into complex enterprise VPC environments.

The ideal candidate

• Possesses deep expertise in Transformer architectures, PyTorch internals, and the mathematical foundations required for advanced deep learning optimization.
• Demonstrates a proven track record of training or fine-tuning models beyond simple augmentation, specifically probing the mechanics of model cognition.
• Exhibits strong technical ownership with the ability to translate academic papers into high-performance Python, Rust, or TypeScript implementations.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Title:
Frontend Engineer ($160K–$250K + Equity) at Greptile - Benchmark-backed AI Review Layer

Job Title

Frontend Engineer

Salary

$160K–$250K + Equity

Company Description

Greptile - Benchmark & YC-backed AI code review layer

Job Description

As Greptile's first dedicated Frontend Engineer, you will own the entire product experience for 7,000+ companies. You'll build the TypeScript/React dashboard that reviews one billion lines of code monthly for customers like Nvidia and Coinbase. This is a foundational role in a talent-dense, in-person team building the future of autonomous code validation.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-growth startup backed by $30M from Benchmark, YC, and Paul Graham, currently growing 25–30% month-over-month as the standard AI review layer.
• Take full ownership of the user interface for a product relied upon by thousands of developers at world-class engineering organizations like Brex and Zapier.
• Work in a talent-dense environment in North Beach, SF, alongside former Stripe, Facebook, and Figma engineers who value high-speed shipping and in-person collaboration.

What you will do

• Architect and maintain the Greptile dashboard and customer-facing analytics using TypeScript and React to provide engineering leaders with deep visibility into code quality.
• Partner closely with the design engineer to iterate on and ensure a fast, consistent, and beautiful frontend experience across the entire application.
• Build autonomous agents that learn idiosyncratic coding standards and identify high-signal PR feedback to reduce noise for thousands of enterprise developer teams.

The ideal candidate

• 3–7 years of professional frontend experience with deep, production-level expertise in TypeScript and ReactJS.
• A strong sense of craft and design taste, with a track record of building beautiful, high-performance UIs at design-forward companies or through complex personal projects.
• Thrives in high-growth, in-person environments and possesses a B.S. in Computer Science or an equivalent degree from a top-tier institution.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

$180k-$300k + Equity

Company Description

High-growth AI voice startup

Job Description

You will own core software components end-to-end, from architecture to production reliability. Focusing on AI voice orchestration, simulation systems, and outbound strategy, you'll build autonomous agents that lead complex conversations. This role offers the chance to ship rapidly alongside a high-density team of industry veterans while shaping the future of conversational AI.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite team of engineers from top-tier tech companies and universities building cutting-edge voice orchestration.
• Work at a well-funded, Series A-backed startup that has achieved significant market traction and massive scale in record time.
• Own mission-critical infrastructure for AI agents that move beyond simple follow-the-leader interactions to drive goal-oriented conversations.

What you will do

• Architect and implement core systems for AI agent orchestration, voice infrastructure, and large-scale call scheduling.
• Build advanced simulation and evaluation frameworks to ensure the reliability and persuasiveness of autonomous voice agents.
• Collaborate with founders and product teams to translate customer requirements into maintainable, scalable software solutions using AI coding tools.

The ideal candidate

• Extensive experience designing and delivering major product features within high-growth startup environments, ideally from Seed to Series B.
• Expert proficiency in at least one major programming language and a deep understanding of software design patterns and best practices.
• Proven ability to leverage AI coding agents and internal tooling to increase shipping velocity while maintaining high code quality.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Founding ML Engineer

Salary

$180K + 1% Equity

Company Description

BehaviorAI is a top-tier VC-backed startup and Cornell SciFi Lab spinout building AI models to understand human behavior through wearable sensors.

Job Description

As a Founding ML Engineer at BehaviorAI, you will architect and deploy state-of-the-art multimodal models for real-world time-series sensor data. You’ll design novel architectures from scratch—moving beyond simple fine-tuning—to power next-generation wearable intelligence. This hands-on role involves shipping direct-to-user solutions in a high-energy, proactive startup environment.

Location

Brooklyn, USA

Why this role is remarkable

• Work directly with founders Cheng Zhang (NSF CAREER Award winner) and Mehrab Bin Morshed (ex-Samsung Research) at the intersection of academia and industry.
• Influence the core product by designing novel ML architectures from scratch rather than just fine-tuning existing models for specific hardware.
• Join a top-tier VC-backed founding team with significant equity and the ability to shape a Cornell SciFi Lab spinout from day one.

What you will do

• Architect and deploy SOTA multimodal models (CV, NLP) specifically optimized for real-world time-series data from wearable sensors.
• Develop and implement real-time inference and on-device machine learning capabilities to ensure low-latency performance in field settings.
• Drive the technical roadmap for foundation models that integrate multi-modal sensing to deeply understand human behavior and intent.

The ideal candidate

• Proven experience processing real-world sensor or time-series data (e.g., image, IMU) with a focus on real-time inference and on-device ML.
• Strong background in Foundation Models and multimodal sensing, with the technical ability to build and iterate on complex architectures.
• High-energy, proactive mindset suited for an early-stage startup, with a willingness to own technical problems from research to final production.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

$140K - $250K + Equity

Company Description

Opal Security is a $59M funded leader in AI-native identity governance, backed by Greylock and Battery, providing intelligent access management for enterprise leaders like Databricks and Figma.

Job Description

Join Opal Security to build AI-native identity governance systems that scale with enterprise chaos. As a full-stack engineer, you will design and ship features from concept to production, solving complex IAM challenges for Fortune 500s. You will work closely with customers to architect secure, real-time control planes that empower rapid innovation without compromising security.

Location

San Francisco, USA

Why this role is remarkable

• Join a hyper-growth team where 60% of the workforce joined since 2026, led by an elite executive team from Meta, Nutanix, and Palo Alto Networks.
• Tackle the burgeoning "identity moment" by building the control plane for human, service, and AI agent identities used by industry leaders like Figma.
• Influence the entire product lifecycle in an environment that prioritizes thoughtful engineering and creative problem-solving over high-velocity ticket completion.

What you will do

• Own critical product areas end-to-end, from initial architectural design to shipping production-ready features across the full application stack.
• Collaborate directly with security teams at high-growth startups and global enterprises to validate solutions and understand real-world infrastructure challenges.
• Establish engineering patterns and write foundational code that multiplies team velocity and shapes how Opal Security scales its technical infrastructure.

The ideal candidate

• Proven experience building and shipping complex, end-to-end products across both frontend and backend in a fast-paced environment.
• Strong architectural thinking skills with the ability to thrive in undefined spaces and challenge requirements to find better technical outcomes.
• A genuine curiosity for IAM, security, or infrastructure, coupled with a desire to engage directly with customers to solve their pain points.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Communications Director at Enterprise Britain

Job Title

Communications Director

Salary

Not Disclosed

Company Description

Enterprise Britain - campaign-driven movement for UK economic prosperity

Job Description

As Communications Director, you will lead the national narrative for a high-profile movement of business leaders and investors. Reporting to the Executive Director, you’ll oversee media relations, content strategy, and rapid response campaigns. This is a foundational hire designed to bridge the gap between Westminster politics and real-world entrepreneurial ambition.

Location

London, UK

Why this role is remarkable

• Work directly with an elite Advisory Board including the founders of OVO Energy, lastminute.com, and Innocent Drinks, as well as a former FT Editor.
• Influence the UK’s economic policy at the highest levels by building cross-party consensus and leading a movement focused on tangible action rather than just theory.
• Enjoy genuine autonomy to build a communications function from the ground up within a fast-paced, high-impact organization backed by some of Britain's most successful business figures.

What you will do

• Develop and execute overarching communications strategies for national policy campaigns, research reports, and reactive news moments.
• Build and maintain deep relationships with key journalists, editors, and broadcasters across UK print and digital media to ensure consistent coverage.
• Oversee all content output including social media, high-stakes op-eds, major speeches, and policy reports to maintain a consistent and compelling voice.

The ideal candidate

• Has 10+ years of experience in media relations and storytelling, ideally within campaign-driven organizations, top political agencies, or senior journalism.
• Possesses a deep understanding of how decisions are made in Whitehall and Westminster without being a traditional policy wonk.
• Is a tech-savvy campaigner who uses AI tools to boost efficiency and has the discipline to land messages with the right audiences at the right time.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding AI Engineer

Salary

$170k – $225k + Equity

Company Description

Tyle is a pre-seed health-tech startup backed by a16z and elite ex-Google/Meta leaders building the visual biomarker layer for human health. Using proprietary imaging hardware and multimodal AI, Tyle transforms the body's surface into a longitudinal record of health intelligence to detect chronic conditions and early signs of disease.

Job Description

As the Founding AI Engineer at Tyle, you will architect and scale the core computer vision system from day zero. You'll own the end-to-end pipeline, from signal capture and data curation to training multimodal models that interpret biological signals. Working alongside elite founders, you will define the technical foundation of a new category of preventative health infrastructure.

Location

San Francisco and Los Angeles, USA

Why this role is remarkable

• Join a high-pedigree founding team consisting of a 12-year Meta engineering leader and Google's former Head of Product for Discovery & Applied AI.
• Work on a zero-to-one challenge at the intersection of custom hardware and cutting-edge multimodal AI, backed by the a16z Explorer Fund.
• Exercise true founding-level ownership with a significant equity stake of up to 5% and the autonomy to design technical systems without legacy constraints.

What you will do

• Architect and evolve the complete computer vision stack, optimizing the journey from raw sensor data to production-ready biological insights.
• Translate emerging research and state-of-the-art multimodal techniques into reliable, high-performance models capable of operating in real-world clinical conditions.
• Build the foundational data infrastructure and training loops required to scale longitudinal health intelligence and improve model performance continuously.

The ideal candidate

• Possesses deep expertise in training and deploying computer vision or multimodal AI models that have been proven in production environments.
• Demonstrates a rapid ability to move from research papers to functional prototypes, balancing scientific rigor with the speed of a stealth-stage startup.
• Thrives in a hands-on, generalist role, comfortably navigating between model development, hardware integration, and high-level technical strategy.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

ML Engineer

Salary

£90k-£100k + Equity

Company Description

Valteros is a London-based defence startup building multi-agent modelling platforms to simulate and counter information warfare threats at the intersection of LLMs and national security.

Job Description

As a founding ML Engineer at Valteros, you will design architectures and run training pipelines for LLMs within multi-agent simulation environments. This hands-on role involves building and fine-tuning models from the ground up to address cognitive security challenges, moving beyond simple API wrapping to create foundational national security technology.

Location

London, UK

Why this role is remarkable

• Foundational impact as an early engineer shaping the technical architecture of a high-stakes defense platform from the ground up.
• Work on the frontier of cognitive security, addressing one of the most under-resourced and critical areas of national defense.
• Join a high-calibre team tackling complex multi-agent simulations using proprietary LLM training and fine-tuning pipelines.

What you will do

• Design and implement custom LLM architectures and training pipelines specifically for multi-agent simulation environments.
• Fine-tune large language models to accurately simulate and counter sophisticated adversarial information operations in real-time.
• Shape the technical direction of the modeling layer, transitioning from conceptual designs to production-ready defense systems.

The ideal candidate

• Hands-on experience building or training LLMs from scratch, with a deep understanding of model internals beyond standard API integration.
• A rigorous academic foundation in Machine Learning, Computer Science, or a quantitative field from a top-tier university program.
• European nationality to meet the mandatory requirements for defense sector clearance in the UK and European security contexts.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Machine Learning Engineer (MLIPs)

Salary

Not Disclosed

Company Description

Well-funded AI physical sciences startup

Job Description

You will lead the development of machine learning interatomic potentials (MLIPs) to accelerate the discovery of advanced functional materials. By integrating ML models with first-principles physics and automated experimental data, you’ll build high-fidelity simulations that translate complex molecular dynamics into actionable insights for a physical laboratory, bridging the gap between theoretical research and industrial production.

Location

London, UK

Why this role is remarkable

• Opportunity to work at the intersection of frontier machine learning and physical sciences with a world-class team from top research institutions and industry leaders.
• Backed by elite global venture capital firms, the company is tackling high-impact climate and industrial challenges by modernizing the discovery process for critical materials.
• Unique hybrid environment where your research directly influences physical experiments in a high-throughput laboratory, ensuring your models solve real-world engineering problems.

What you will do

• Design and implement scalable pipelines for training and fine-tuning machine learning interatomic potentials (MLIPs) using PyTorch or JAX.
• Collaborate with physics and simulation teams to build high-quality datasets using Density Functional Theory (DFT) and optimize equivariant message-passing architectures.
• Integrate MLIP workflows into larger simulation and discovery platforms to enable rapid, large-scale screening of candidate materials for structural and functional applications.

The ideal candidate

• A PhD in Physics, Materials Science, or a related field with deep expertise in solid-state physics and computational materials modeling.
• Proven experience training MLIPs and a strong understanding of training dynamics, loss landscapes, and generalization in chemical/physical systems.
• Advanced proficiency in Python and modern ML frameworks, combined with hands-on experience using DFT packages like VASP or Quantum Espresso.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Chief Technology Officer

Salary

£100k-£140k + Equity

Company Description

VC-backed B2B marketplace scale-up

Job Description

You will lead the technology strategy for a fast-growing marketplace, scaling the platform and team through a 10x revenue journey. Inheriting a 40-person product and engineering function, you will evolve architecture, implement advanced data and AI capabilities, and partner with the CEO to drive commercial success and operational excellence.

Location

London, UK

Why this role is remarkable

• Lead a 10x growth phase for a marketplace with strong unit economics and a proven business model.
• High-impact executive role balancing board-level strategy with hands-on architectural leadership and team building.
• Well-funded scale-up backed by top-tier VCs with a clear roadmap to becoming a market leader.

What you will do

• Evolve the marketplace platform and architecture to handle massive order volume increases with high reliability.
• Scale the product and engineering organization, including hiring a new leadership layer and improving delivery speed.
• Lead data and AI initiatives for demand forecasting, personalized discovery, and internal operations automation.

The ideal candidate

• Proven experience scaling technology and engineering teams through high-growth cycles in B2B or marketplace businesses.
• Strong technical credibility with the ability to challenge architectural decisions while maintaining a commercial operator's mindset.
• Hands-on experience with applied AI and data platforms to drive measurable business outcomes and operational efficiency.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Full-Stack Engineer

Salary

Not Disclosed

Company Description

Emporium AI is an early-stage, research-driven product company building the infrastructure for autonomous AI-native commerce, including generative storefronts, dynamic pricing, and conversational checkout.

Job Description

As a Full-Stack Engineer at Emporium AI, you will build the operating system for AI-native commerce. You'll own end-to-end features across TypeScript, React, and Node.js, moving from design to deployment within weeks. Working directly with live partners in hospitality and e-commerce, you'll bridge the gap between LLM architectures and real-world buyer intent.

Location

New York City, USA

Why this role is remarkable

• Build the future of commerce by creating autonomous agents that negotiate, understand intent, and generate dynamic storefronts in real-time.
• Join a high-velocity, research-driven team based in NYC and Paris that is already shipping products to live partners in hospitality.
• High-impact ownership where you will influence the engineering culture and product roadmap of an early-stage startup from the ground up.

What you will do

• Design and ship end-to-end features across the entire stack, including the AI layer, commerce logic, and user-facing React interfaces.
• Collaborate directly with clients and live partners to iterate on product requirements and see your work in production within weeks.
• Architect scalable systems using TypeScript, Node.js, and PostgreSQL to power agent-to-agent markets and conversational checkout flows.

The ideal candidate

• Has 3–5 years of professional engineering experience with a strong command of TypeScript, React, Node.js, and PostgreSQL.
• Proven track record of shipping consumer or B2B products end-to-end, taking full ownership from initial concept through final delivery.
• Thrives in early-stage environments characterized by ambiguity and values first-principles thinking to solve complex infrastructure problems.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding AI Engineer Intern

Salary

Not Disclosed

Company Description

Frances is a San Francisco-based startup building AI agents that interface with real-world kitchens and customers to automate food preparation and service.

Job Description

Join Frances as a Founding AI Engineer Intern to bridge the gap between bleeding-edge AI agents and physical kitchen operations. You will own core features, shipping scrappy 0→1 products that connect computer-use tooling to real-world environments. This role is for obsessive builders who care about polish, UX, and the tangible impact of their code.

Location

San Francisco, USA

Why this role is remarkable

• Work directly with the founders in San Francisco to define the core product architecture and user experience from the ground up.
• Operate at the bleeding edge of AI agent technology and computer-use tooling, applying these models to complex physical-world environments.
• Experience the full lifecycle of a startup, from deep technical design to visiting customers' homes and cooking to understand product-market fit.

What you will do

• Design and implement end-to-end features that integrate sophisticated AI agents with real-world kitchen hardware and customer interfaces.
• Ship high-quality, polished code rapidly to move from initial prototypes to functional 0→1 products in a fast-paced environment.
• Engage directly with users by testing the product in real-world settings to gain insights that drive technical and product decisions.

The ideal candidate

• Demonstrates an "obsessive builder" mindset with a track record of shipping scrappy, functional 0→1 products in record time.
• Possesses deep technical curiosity and hands-on experience with AI agents, LLMs, and computer-use tooling or robotic automation.
• Combines strong engineering skills with a passion for UX, polish, and a willingness to step outside the codebase to meet users.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Frontend Engineer

Salary

Not Disclosed

Company Description

Stealth AI-powered retention startup

Job Description

As a Frontend Engineer at this stealth AI startup, you will architect and own the user-facing side of products designed to solve subscriber churn. Working alongside high-caliber founders, you'll build robust, scalable interfaces using React and TypeScript. This role offers high autonomy to shape the frontend culture and drive the adoption of modern technologies in a fast-paced environment.

Location

San Francisco, USA

Why this role is remarkable

• High autonomy as an early hire, directly influencing the product roadmap and frontend architecture from day one.
• Backed by top-tier venture capital and founded by experienced leaders who have scaled products to millions of users.
• Solving a critical revenue problem—consumer churn—for real brands using cutting-edge AI agent technology.

What you will do

• Architect and build robust, scalable user interfaces for new product features using modern frameworks.
• Collaborate directly with backend, product, and design teams to deliver integrated, high-performance solutions.
• Drive the adoption of frontend best practices and shape the engineering culture from the ground up.

The ideal candidate

• Professional experience in frontend development with strong JavaScript/TypeScript and React skills.
• Proven ability to integrate complex frontend applications with backend APIs while maintaining performance.
• Strong understanding of UI/UX principles and a passion for building intuitive, high-quality user experiences.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

Not Disclosed

Company Description

Den is a New York-based crypto infrastructure company securing the largest organizations in the global crypto economy. Backed by IDEO CoLab Ventures and top crypto investors, Den provides institutional-grade wallet infrastructure for over 800 teams, including Lido and Worldcoin, having processed over $10B in transaction volume to date.

Job Description

As a Software Engineer at Den, you will build full-stack web applications that secure billions in assets for leading crypto institutions. Working directly with technical co-founders, you'll ship critical features across the TypeScript stack and help define the engineering culture as transaction volumes scale from $1B toward $18T.

Location

New York, USA

Why this role is remarkable

• Join a high-growth crypto infrastructure leader that saw transaction volume explode from $1B in 2024 to $7.5B in 2025.
• Work directly with technical founders from ConstitutionDAO who have deep experience in smart contract development and scaling backend infrastructure.
• Contribute to a mission-critical platform trusted by industry giants like Lido and Worldcoin to secure their most vital on-chain deposits.

What you will do

• Develop and scale full-stack applications using TypeScript, Next.js, and Node.js to facilitate secure, high-volume institutional crypto transactions.
• Collaborate with the co-founders to architect new features and make foundational technical decisions for the core wallet infrastructure.
• Bridge the gap between complex blockchain protocols and seamless user experiences using tools like Viem, Prisma, and PostgreSQL.

The ideal candidate

• Possesses 1-4 years of experience shipping production-grade code with a strong proficiency in TypeScript and the modern React/Node ecosystem.
• Demonstrates an insatiable curiosity for crypto and the ability to execute at high speeds in a fast-paced, high-ownership environment.
• Combines technical excellence with project management skills and the ability to make architectural decisions that will scale with the company.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Brand Manager

Salary

Not Disclosed

Company Description

Boutique music and entertainment platform

Job Description

You will shape and execute the brand strategy for a dynamic music and entertainment company. By capturing behind-the-scenes content and managing all communications, you will tell a compelling story that attracts world-class artists, songwriters, and partners. Your creative instinct will drive social media growth and build an irresistible brand identity.

Location

London, UK

Why this role is remarkable

• Work at the intersection of music, creativity, and brand storytelling in a high-energy environment.
• Supported by a well-funded team with significant influence in the global music industry.
• High degree of autonomy to shape the voice and visual identity of a rising brand.

What you will do

• Lead the end-to-end social media strategy, capturing authentic moments to grow an engaged global audience.
• Manage all external communications, including newsletters and media outreach, to ensure a consistent brand voice.
• Build strategic relationships with artists and partners by positioning the company as an industry-leading creative hub.

The ideal candidate

• Proven experience in brand management or social media strategy within the music or creative industries.
• Exceptional creative instinct and a talent for visual storytelling across multiple digital platforms.
• Strong communication skills with the ability to handle high-level partnerships and sensitive brand messaging.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Research Scientist (Growth)

Salary

£60k–£120k + Equity

Company Description

EQUALS is a well-funded London-based music social network with 1 million monthly active users, backed by the investors behind Spotify, A24, and Facebook. Founded by a world-class team from Apple, Nike, and Instagram, EQUALS has sparked over 40 million friendships by uniting the world through the universal language of music.

Job Description

EQUALS is seeking a technical builder to own their systematic marketing engine. You will treat paid acquisition like a quant desk, applying advanced mathematics and frontier AI to optimize a live portfolio across major social platforms. This hybrid role blends cultural intuition with rigorous experimentation to drive global user growth through music.

Location

London, UK

Why this role is remarkable

• Join a high-traction social network with 1 million MAU that is outperforming platforms like Instagram and Snapchat in engagement and usage.
• Work alongside an elite team of creatives and technologists from Apple, Nike, and Instagram, supported by legendary investors who funded Spotify and Facebook.
• Build a first-of-its-kind marketing engine from the ground up, treating cultural trends as mathematical optimization problems using the latest AI models.

What you will do

• Manage and optimize a multi-platform paid spend portfolio across TikTok, Meta, and Snap using real-time rebalancing systems instead of manual spreadsheets.
• Deploy generative AI and autonomous agents to iterate on creative content and marketing tooling at a pace no traditional team can match.
• Design scientific measurement frameworks for incrementality, attribution, and causal inference to replace gut-feel reporting with rigorous, actionable experimentation.

The ideal candidate

• Strong quantitative background in mathematics, statistics, or machine learning, with a passion for applying these disciplines to messy, real-world consumer data.
• Fearless early adopter of AI who can bridge the gap between creative hooks and technical model reasoning to unlock new growth capabilities.
• Pragmatic builder with a bias for action, capable of shipping, measuring, and iterating quickly within a fast-paced, high-stakes startup environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Software Engineer

Salary

Not Disclosed + Equity

Company Description

Made is a pre-seed fashion-tech startup building an AI-powered operating system to replace the $1.7T apparel industry's broken supply chain with on-demand, zero-waste manufacturing.

Job Description

Join Made as a founding engineer to transform a proven prototype into a scalable MVP. You’ll build the technical foundation for a platform that connects generative AI design with a distributed micro-factory network. This role offers high autonomy to solve structural failures in fashion while working directly alongside experienced founders.

Location

California, USA

Why this role is remarkable

• Opportunity to solve a $1.7T global industry problem by replacing slow, wasteful supply chains with a real-time, AI-driven manufacturing alternative.
• Founding team access and high ownership with 0.5–1.5% equity in a pre-seed startup founded by veterans in fashion, climate tech, and sustainable manufacturing.
• Unique technical challenge bridging the digital and physical worlds, working with generative AI, computational design, and a distributed micro-factory network.

What you will do

• Architect and develop full-stack features for the "Made OS" platform, taking the existing working demo to a production-ready MVP.
• Implement and optimize generative AI workflows and modular product engineering tools to enable instant, custom garment design for creators and brands.
• Collaborate directly with the founding team to define the technical roadmap, prioritize features, and establish the company's engineering culture and standards.

The ideal candidate

• 2–6 years of full-stack engineering experience with a strong background in building production systems, modern APIs, and distributed cloud architectures.
• Demonstrated interest or experience in generative AI, computational geometry, or 3D creative tooling such as WebGL, WebGPU, or CAD systems.
• High autonomy and a builder’s mindset, comfortable moving fast in an ambiguous startup environment to own features from conception through to deployment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Staff or Senior Product Engineer

Salary

£100k-£150k + Equity

Company Description

VC-backed AI legal tech startup

Job Description

You will join an early engineering team building a next-generation platform designed to modernize traditional professional services through AI. As a generalist, you will shape product direction, build sophisticated LLM-powered systems, and ship production features within your first week. This role is ideal for high-standard engineers who thrive in fast-paced startup environments.

Location

London, UK

Why this role is remarkable

• Join a well-funded venture led by a second-time founder with a proven track record of scaling regulated platforms to massive volume.
• Work at the frontier of AI application, building a full-stack, AI-native service that replaces legacy workflows with sophisticated automated agents.
• Receive meaningful early-stage equity in a high-growth company tackling a multi-billion pound market with a modern TypeScript and React stack.

What you will do

• Architect and deploy complex AI-powered systems and LLM agents that handle intricate, high-stakes professional workflows beyond simple prompting.
• Own the end-to-end product lifecycle, from talking to users and forming hypotheses to shipping high-quality code into production weekly.
• Scale a robust TypeScript monorepo and event-driven architecture using React, tRPC, and Inngest to support rapid product iteration.

The ideal candidate

• Previous experience at an early-stage startup where you successfully drove product direction and managed ambiguous technical requirements.
• Expert proficiency in TypeScript and the modern web ecosystem, with the ability to maintain high engineering standards while moving fast.
• A relentless focus on user impact and problem-solving, with a hands-on approach to refining AI-driven features and production-ready machine learning applications.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Security Engineer

Salary

$210K – $350K + Equity

Company Description

Giga is a $61M Series A startup building enterprise-grade AI agents for world-class brands like DoorDash. They are revolutionizing customer experience through real-time voice superintelligence that understands emotion and resolves complex issues at scale, supported by a high-caliber engineering team based in San Francisco.

Job Description

As Giga’s first dedicated Senior Security Engineer, you will own the security posture of an AI platform processing millions of sensitive enterprise interactions. This is a hands-on role where you will build security tooling, architect robust authorization systems, and tackle emerging AI-specific threats like prompt injection to ensure data integrity.

Location

San Francisco, USA

Why this role is remarkable

• Join as the first dedicated security owner at a fast-growing, Series A company with $61M in fresh funding and a validated product.
• Secure a platform used by industry giants like DoorDash, directly impacting the safety of millions of real-time customer interactions.
• Navigate the frontier of AI security, developing playbooks for unique challenges like prompt injection and multi-modal data leakage.

What you will do

• Design and implement end-to-end application security, focusing on API integrity, role-based access controls, and robust audit logging for enterprise customers.
• Build and maintain automated security infrastructure, including vulnerability scanning, secrets management, and CI/CD security checks using Terraform and Kubernetes.
• Collaborate with backend and infrastructure teams to embed security into the core architecture of Giga's real-time voice and chat agents.

The ideal candidate

• Have 4+ years of professional experience in security engineering with a strong background in software development using Python or TypeScript.
• Proven track record of securing production cloud environments (AWS/Kubernetes) and handling sensitive enterprise data at scale.
• Proactive mindset that views security as an enabler of speed, capable of building tools that help the team ship faster and more securely.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Senior Staff Platform Engineer (Up to £200k + Equity) at VC-backed compute infrastructure startup

Job Title

Senior Staff Platform Engineer

Salary

Up to £200k + Equity

Company Description

VC-backed compute infrastructure startup

Job Description

As a founding-level hire, you will architect financial-grade infrastructure for the global GPU market. You will bridge the gap between high-performance compute and capital markets, building systems for real-time pricing, automated settlement, and cross-cloud orchestration. This role offers the unique opportunity to define the technical foundation for a new asset class.

Location

London, UK

Why this role is remarkable

• Lead the architectural design of a first-of-its-kind trading platform for GPU compute, working directly with founders from elite quantitative and engineering backgrounds.
• Join a well-funded startup backed by top-tier VCs at the intersection of AI infrastructure and sophisticated financial instruments.
• High-impact founding role with significant equity and the mandate to build and lead a world-class platform engineering team from scratch.

What you will do

• Architect and build robust services for dynamic pricing, on-demand billing, and high-reliability cash settlement systems.
• Design and implement complex inventory management logic and orchestration for GPU instances across multiple cloud providers.
• Own the end-to-end security, scalability, and reliability of core infrastructure to meet financial-grade performance guarantees.

The ideal candidate

• 8+ years of software engineering experience with a deep background in distributed systems, cloud infrastructure, or high-scale billing rails.
• Proven track record of building production-grade systems in fintech, payments, or low-latency trading environments.
• Expert-level proficiency in backend languages like Go, Rust, or C++ and experience mentoring high-performing engineering teams.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Generalist Engineer

Salary

Not Disclosed + Equity

Company Description

Greptile is a $30M venture-backed startup in San Francisco building AI agents that autonomously review and validate code, supported by Benchmark, YC, and Paul Graham.

Job Description

Join Greptile as a Generalist Engineer to build AI agents that autonomously review and test code for thousands of companies like Stripe and Brex. You'll work across the full stack on LLM memory and codebase indexing. This role offers the chance to define the future of software engineering at a high-growth startup.

Location

San Francisco, USA

Why this role is remarkable

• Work on a product already used by over 9,000 companies, including high-profile tech leaders like Stripe, Brex, and Substack, while reviewing 1B lines of code monthly.
• Join a small, elite engineering team of former Stripe, Google, and Figma engineers backed by top-tier investors like Benchmark and Paul Graham with $30M in funding.
• Engage in a unique "offense/defense" work cycle that balances deep-work feature sprints with system health, ensuring exposure to both building and scaling infrastructure.

What you will do

• Design and implement full-stack features involving multi-language codebase indexing, semantic search, and agent-based code validation to catch complex bugs.
• Build AI systems using sample-efficient reinforcement learning to help agents learn a team's coding standards and increase signal-to-noise in PR feedback.
• Participate in daily in-office collaboration in San Francisco, rotating between high-velocity feature development and maintaining the robustness of the core system.

The ideal candidate

• Possesses strong CS foundations and at least 1+ years of experience shipping production-grade software in a fast-paced, high-growth environment.
• Demonstrates high proficiency in JavaScript/TypeScript and a generalist mindset, capable of picking up new tools or languages as technical challenges require.
• Thrives in the chaos of a startup, showing excitement for shifting priorities and the immediate impact of shipping code to thousands of developers.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Director of Operations

Salary

$155,000-$190,000

Company Description

GovAI is an influential AI governance think tank and talent development organization that has scaled from 3 to 50 staff in three years and works directly with frontier AI labs and global governments.

Job Description

As Director of Operations, you will lead a 13-person team and build the systems necessary to scale GovAI from 50 to 100+ staff. You will oversee finance, HR, and program administration while spearheading strategic initiatives to support our mission of guiding the transition to advanced AI safely and effectively.

Location

London, UK / Washington DC, USA / Remote

Why this role is remarkable

• Exceptional organizational leverage as a force multiplier for the world's leading AI governance research body during a critical phase of global growth.
• Unique intellectual environment that balances rigorous research with a supportive, high-performing culture often described as an exceptional place to work.
• Direct impact on global policy; GovAI alumni hold pivotal roles in the UK Prime Minister’s office, the EU AI Office, and labs like OpenAI and Anthropic.

What you will do

• Lead and grow a high-performing operations team, expanding from 13 FTEs to support a total organizational headcount of 100 staff within two years.
• Build robust operational infrastructure across finance, HR, legal, and program administration capable of managing over 20,000 annual fellowship applications.
• Collaborate with the Chief of Staff and Executive Director to design and execute organization-wide strategy and lead high-priority strategic initiatives.

The ideal candidate

• Proven experience scaling operations in a high-growth environment, ideally taking a mission-driven organization from 50 to 100+ employees.
• Versatile generalist expertise across core functions including finance, HR, legal compliance, and complex program management for large-scale talent initiatives.
• Strong people management skills with a track record of building healthy team cultures and mentoring leaders in a fast-paced, mission-driven setting.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Staff Engineer

Salary

Not Disclosed

Company Description

$37M Series B Kinnevik-backed AI hospitality platform revolutionizing restaurant operations

Job Description

You will tackle the most ambiguous and technically complex problems across a high-growth product and platform. As a backend-leaning full-stack lead, you will drive architectural decisions, influence product roadmaps, and build predictive AI systems that optimize margins for global restaurant chains. This is a high-leverage role focused on creating systemic technical excellence.

Location

Dublin, Ireland; London, UK; Spain (Remote)

Why this role is remarkable

• Join a fast-growing Series B scale-up fresh off a $37M funding round led by Kinnevik to automate the hospitality industry.
• Work at the frontier of AI and hospitality, building intelligent systems that directly impact the bottom line of enterprise restaurant partners.
• Enjoy a remote-first culture with incredible benefits including 35 days of leave, work-from-anywhere flexibility, and meaningful equity ownership.

What you will do

• Lead the framing, execution, and rollout of high-impact technical initiatives that cut across multiple cross-functional engineering squads.
• Partner with leadership to define pragmatic technical directions and sequence complex work for scalable, long-term architectural health.
• Mentor and raise the effectiveness of the entire engineering organization through hands-on problem solving and clear technical communication.

The ideal candidate

• Deep expertise in production backend systems using Python, FastAPI, Node.js, and complex data modeling in Postgres or MongoDB.
• Proven track record of operating across the full stack (React/TypeScript) and shipping end-to-end features in constrained startup environments.
• Exceptional architectural judgment with the ability to identify foundational gaps and design systems that enable teams to move faster.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Head of Platform Engineering

Salary

£225,000 + Equity

Company Description

Model ML is a $75M Series A London-based AI company building an intelligent workspace for the financial services industry. Backed by FT Partners and YC W24, the platform serves major global banks and private equity firms who trust Model ML for their most sensitive financial analysis and data workflows.

Job Description

As Head of Platform Engineering at Model ML, you will lead the evolution of production-grade infrastructure for the AI era. Based in Kings Cross, you’ll own the end-to-end cloud strategy, scaling our Azure/AKS environment and leading a growing team. You’ll ensure high availability, security, and compliance for the world’s leading financial institutions.

Location

London, UK

Why this role is remarkable

• Lead the platform function at a high-growth, YC-backed AI startup reimagining the Bloomberg Terminal for top-tier financial institutions.
• Secure massive ownership with a $75M Series A war chest and a mandate to scale the platform team from 3 to 9 engineers by 2026.
• Work in a high-intensity, mission-critical environment where your infrastructure directly enables AI-driven workflows for the world's most sophisticated private equity firms and banks.

What you will do

• Architect and scale cloud infrastructure using Azure, AKS, and Terraform to support rapid product growth and demanding financial service workloads.
• Build and maintain robust CI/CD pipelines and observability frameworks to ensure system reliability, performance, and seamless software delivery across all services.
• Lead the company through SOC 2 and ISO 27001 audits, implementing rigorous security, secrets management, and compliance measures across the entire platform.

The ideal candidate

• Has 10+ years of experience in infrastructure and platform engineering, specifically architecting and operating production-grade Kubernetes and Terraform environments at scale.
• Demonstrates a proven track record of leading and scaling engineering teams in high-growth startup environments with a focus on operational excellence.
• Thrives in a fast-paced, high-ownership culture and possesses deep experience navigating complex compliance frameworks like SOC 2, ISO 27001, or GDPR.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Customer Success Manager

Salary

$100k-$220k + Equity

Company Description

Movo AI is an early-stage startup building voice AI for small businesses, empowering non-technical SMB owners with intuitive, accessible automation tools.

Job Description

Join Movo AI as our founding Customer Success Manager to build the customer function from scratch. You will own the end-to-end post-sale journey—from onboarding and use-case consulting to driving renewals and expansion. This is a high-impact IC role for a scrappy builder eager to define the playbook for voice AI adoption in the SMB market.

Location

New York City, USA

Why this role is remarkable

• Founding-level impact: You aren't just managing accounts; you are building the entire customer success department, playbooks, and strategy from the ground up at an early-stage AI startup.
• High-upside compensation: A competitive salary range of $100k-$220k plus equity offers significant financial upside and ownership in a rapidly growing category.
• Market-defining product: Bring cutting-edge voice AI to the underserved small business market, making sophisticated technology intuitive and accessible for non-technical users.

What you will do

• Own the full-stack customer journey, including onboarding new SMB clients, consulting on specific voice AI use cases, and ensuring deep product adoption.
• Manage end-to-end commercial conversations, including building the renewal engine and identifying expansion opportunities to drive net revenue retention.
• Partner cross-functionally with Product and GTM teams to relay customer feedback, influence the roadmap, and build scalable customer success playbooks.

The ideal candidate

• Proven experience as an early hire or high-performing operator at a growth-stage SaaS company (e.g., Clay, Gong, Attentive) or vertical SaaS leader (e.g., Toast, ServiceTitan).
• Exceptional commercial instincts with a track record of owning expansions, renewals, and consultative sales processes for non-technical buyers.
• A builder's mindset with a history of scrappy execution, potentially as a former founder or a founding team member at a YC-backed startup.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior UI Engineer

Salary

Not Disclosed

Company Description

StackOne is a $24M Series A London startup building an AI Integration Gateway for SaaS platforms and AI Agents, backed by GV (Google Ventures) and Workday Ventures.

Job Description

As StackOne’s first dedicated UI Engineer, you will be the authority on craft, polish, and performance. You’ll own the component library, shape micro-frontend architecture, and ensure every pixel reflects best-in-class engineering. Working alongside founders from Google and Microsoft, you’ll build the infrastructure layer that enables the next generation of agentic integrations.

Location

London, UK

Why this role is remarkable

• Join as the first dedicated UI/UX engineer, owning the entire front-end surface and setting the visual standards for a high-growth infrastructure platform.
• High-caliber environment backed by $24M from GV and Workday Ventures, founded by veterans from Google and Microsoft who value engineering taste and autonomy.
• Tackle unique performance challenges at the intersection of AI and enterprise integrations, building a system that orchestrates thousands of actions across hundreds of connectors.

What you will do

• Lead the development and stewardship of StackOne’s design system, establishing the visual language, reusable primitives, and performance standards for all user interfaces.
• Ship high-fidelity, pixel-perfect UIs using React and TypeScript, while managing micro-frontend patterns and optimizing Core Web Vitals to ensure industry-leading latency.
• Collaborate with product and design teams to prototype interactive proofs-of-concept, while providing internal tooling and AI rules to help other engineering teams contribute.

The ideal candidate

• 4+ years of professional front-end engineering experience with a deep focus on visual craft, design systems, and building production-scale React applications.
• Expert-level command of TypeScript, CSS fluency (Tailwind), and modern browser APIs, with a proven track record of migrating or scaling component libraries.
• Strong performance engineering instincts, including experience with monorepo tooling like NX or Turborepo and the ability to optimize backend bottlenecks impacting the client.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Engineering Manager

Salary

Not Disclosed

Company Description

Plentific Ltd is a London-based technology company dedicated to building innovative platforms through its engineering department. Operating from the heart of the City of London, the organization focuses on technical excellence and scaling robust solutions to serve its expanding user base while fostering a collaborative environment for engineering talent.

Job Description

As a Senior Engineering Manager at Plentific Ltd, you will lead high-performing teams to deliver impactful software solutions. You will be responsible for technical strategy, people development, and operational excellence within the engineering department. This role offers the opportunity to shape the engineering culture and drive the technical direction of a dynamic London-based team.

Location

London, UK

Why this role is remarkable

• Lead and scale talented engineering squads in the heart of London's vibrant technology sector.
• Directly influence the technical roadmap and organizational growth at Plentific Ltd through strategic leadership.
• Work in a high-growth environment that prioritizes technical innovation, professional development, and engineering best practices.

What you will do

• Manage and mentor multiple engineering teams to ensure high-quality software delivery and sustainable career growth for individuals.
• Collaborate with product and design leaders to define, prioritize, and execute the long-term technical and product strategy.
• Optimize engineering processes and foster a culture of continuous improvement, technical excellence, and cross-team collaboration.

The ideal candidate

• Proven experience managing multiple engineering teams within a fast-paced, high-growth technology environment or scale-up.
• Strong technical background with the ability to provide architectural guidance and oversee complex, scalable system designs.
• Exceptional communication and leadership skills with a track record of building diverse, inclusive, and high-performing cultures.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Robotic Software Engineer

Salary

Not Disclosed

Company Description

Paddington Robotics Limited is a pre-seed/seed stage, 15-person robotics startup in London founded by a Magic Pony co-founder and building AI-driven hardware to solve real-world labor challenges.

Job Description

As a Robotic Software Engineer at Paddington Robotics Limited, you will own core subsystems end-to-end, moving between high-level autonomy and low-level embedded control. You will write production C++ and Python for physical robots deployed in chaotic, real-world environments, working alongside an elite team from Amazon, InstaDeep, and top-tier UK universities.

Location

London, UK

Why this role is remarkable

• Join a team led by a Magic Pony co-founder (acquired by Twitter) and composed of elite engineers from Amazon, InstaDeep, Imperial, UCL, and Cambridge.
• Work on physical robots that are already shipping and being deployed at customer sites, tackling the messy "edge cases" of reality rather than staying in simulation.
• Enjoy high ownership in a scrappy, 15-person startup where you influence everything from motion planning and SLAM to firmware and sensor fusion.

What you will do

• Take end-to-end ownership of a key robotics subsystem, including specification, implementation, testing, and maintenance of code running on real hardware.
• Develop and optimize algorithms across various domains such as SLAM, navigation, computer vision, and high-performance computing using C++ and Python.
• Collaborate with multi-disciplinary teams and spend time on customer sites to understand real-world requirements and iterate on hardware-software integration.

The ideal candidate

• Proven expertise in Python and C/C++ with a strong track record of shipping software that interacts with physical sensors, actuators, and hardware.
• Hands-on experience in robotics, specifically with microcontrollers, image processing, CUDA, or SLAM, and a Masters degree in Computer Science or a related field.
• A pragmatic, low-ego problem solver who thrives in dynamic, multi-disciplinary environments and is comfortable taking projects from concept to completion.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Product Marketing Lead

Salary

£90k–£150k + Equity

Company Description

Omnea is a London-based AI-native procurement operating system that recently secured £75M in Series B funding to rebuild enterprise spend management from the ground up for global leaders like Spotify and Monzo.

Job Description

You will own Omnea’s market narrative, sitting at the intersection of Product and GTM to translate complex AI capabilities into compelling stories. As a senior individual contributor, you’ll drive end-to-end product launches, craft high-impact positioning for enterprise buyers, and build essential sales enablement tools that empower reps to win deals with global leaders.

Location

London, UK

Why this role is remarkable

• Join a high-growth scale-up that has grown ARR 10x in just 18 months, working directly alongside the SVP of GTM in a high-leverage team.
• Shape the narrative for an AI-native platform disrupting a broken multi-billion dollar industry, backed by £75M in fresh Series B funding and top European investors.
• Enjoy high autonomy as a senior peer to the existing PMM, with the opportunity to build the positioning playbook while executing high-visibility market strategies.

What you will do

• Develop and own differentiated positioning and messaging that spans the entire buyer journey, from website copy to analyst relations and customer references.
• Lead comprehensive product launches end-to-end, coordinating across Product and Sales to generate significant market noise and measurable adoption within 30 days.
• Create high-utilization sales assets, including battlecards and pitch decks, while training the GTM team to master the Omnea story in complex competitive deals.

The ideal candidate

• Has 5+ years of B2B SaaS product marketing experience, specifically within complex enterprise categories and experience with AI-native positioning.
• Is an exceptional writer and storyteller who can transform technical product specifications into humanized narratives that resonate with procurement and finance leaders.
• Thrives in fast-paced scale-up environments and is a builder who executes everything from high-level strategy to hands-on asset creation without needing external agencies.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Senior Full-Stack Engineer

Salary

$170K–$220K + Equity

Company Description

Well-funded healthtech AI startup

Job Description

As a Senior Full-Stack Engineer, you will own the development lifecycle of an AI-native platform addressing the national care crisis. Partnering with clinical and operations teams, you will build critical tools that empower family caregivers. This is a high-impact build role focused on shipping TypeScript and Python features for a mission-driven healthcare solution.

Location

San Francisco, USA

Why this role is remarkable

• Join a mission-driven team solving a massive care crisis by providing tools and financial support to millions of unpaid family caregivers.
• Backed by top-tier VCs, this startup is scaling rapidly across the country after delivering millions of hours of care and significantly reducing hospitalizations.
• Work alongside a high-caliber team from leading tech companies like Uber and Meta in a fast-moving, high-ownership engineering environment.

What you will do

• Own full-stack feature development from concept to delivery across web and API surfaces using TypeScript, Python, and React.
• Collaborate with clinical, compliance, and product teams to design and implement real-world technology solutions for the healthcare system.
• Shape the early product direction and technical architecture on AWS as a key member of a growing engineering organization.

The ideal candidate

• Professional software engineering experience of 5+ years with a strong production background in both TypeScript and Python.
• Proven ability to own features end-to-end in a startup environment, demonstrating comfort with ambiguity and a product ownership mindset.
• Experience building and architecting cloud-native applications on AWS, ideally with familiarity in healthcare or AI/ML product development.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Full Stack Engineer

Salary

$150k-$190k + Equity

Company Description

Myjunior.ai is a profitable, bootstrapped AI company reaching ~$24M ARR and building the operating system for investment research. Trusted by global private equity firms and Big 4 consultancies, the team includes talent from Airbnb and Meta, developing tools that transform how the world's top dealmakers analyze fragmented data.

Job Description

You will join a high-growth team to build the AI-native intelligence platform for private markets end-to-end. Working directly with founders, you'll design features across the Next.js and TypeScript stack that automate complex research workflows. This role offers the chance to ship weekly to elite financial institutions while shaping the product's technical architecture.

Location

New York City, USA

Why this role is remarkable

• Join a rare, bootstrapped success story growing ~20% month-over-month with over $24M in ARR without traditional VC funding.
• Work alongside an elite engineering team from Palantir, Amazon, and Meta in a high-ownership, fast-iteration NYC culture.
• Enjoy unique perks including an in-office cook, gym memberships, and the opportunity to work from Greece during the summer.

What you will do

• Architect and ship full-stack features using Next.js, TypeScript, and PostgreSQL to handle unstructured financial data transformations.
• Build frontier products like low-latency voice-to-voice research tools and AI-native CRM systems with deep knowledge graph integrations.
• Collaborate with top-tier investment firms to translate complex research needs into intuitive, high-stakes digital workflows and interfaces.

The ideal candidate

• Possesses strong full-stack fundamentals with professional experience building and scaling applications using Next.js, TypeScript, and relational databases.
• Demonstrates "Builder DNA" with a track record of shipping products from scratch and a desire to influence product prioritization.
• Has a product-minded approach, excellent communication skills for client-facing collaboration, and interest in LLM-powered feature development.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer

Salary

Not Disclosed

Company Description

Borderless is a fast-growing immigration-tech startup backed by Entrepreneur First and Backed VC, simplifying the complex UK visa sponsorship process. Since 2023, they have supported over 600 businesses and 15,000 workers, leveraging automation and AI to transform a traditionally broken system into a seamless global mobility platform.

Job Description

You will join a high-impact engineering team of eight, building a full-stack platform that automates UK immigration. Working across TypeScript, React, and AWS, you’ll ship code ten times daily to solve complex logic and data modeling challenges. This role is pivotal in scaling Borderless as it expands into new international markets and sectors.

Location

London, UK

Why this role is remarkable

• Join a mission-driven team backed by Backed VC and Entrepreneur First, solving one of the most significant friction points in the global economy.
• Work at the cutting edge of AI implementation, building LLM-driven document classifiers and security tools that redefine how immigration paperwork is handled.
• Benefit from a culture of high ownership and speed, deploying to production multiple times daily within a small, elite engineering squad of roughly eight people.

What you will do

• Develop and maintain the core Borderless platform using TypeScript, React (NextJS), and Node.js to serve candidates, businesses, and internal teams.
• Design and scale complex PostgreSQL data models to ensure high performance and extensibility as the product expands into new global jurisdictions.
• Integrate advanced LLM and AI capabilities to automate document classification and extraction, significantly reducing manual overhead for international visa applicants and employers.

The ideal candidate

• Possesses 4–7+ years of professional engineering experience with a deep mastery of the full-stack: TypeScript, React, Node.js, and PostgreSQL.
• Demonstrates a proven track record of shipping fast and owning features end-to-end within the fast-paced, high-ambiguity environment of an early-stage startup.
• Displays strong architectural thinking, especially regarding asynchronous workloads via AWS SQS and the tradeoffs between speed-to-market and long-term technical stability.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer - Core Financial Platform

Salary

$180k-$275k + Equity

Company Description

Basic Capital is a $25M Series A fintech based in SoHo, NYC, backed by Lux Capital and Forerunner Ventures. They are rebuilding the infrastructure of America’s $1T retirement industry, creating a fundamentally new retirement system powered by a team of elite engineers from Stripe, Uber, and Goldman Sachs.

Job Description

As a Software Engineer on the Core Financial Platform team, you will design and build the high-reliability systems responsible for moving money at scale. You will architect event-driven workflows, design reconciliation logic, and own the infrastructure for trading and fund management, ensuring the transparency and reliability that modern retirement investing requires.

Location

New York, USA

Why this role is remarkable

• Work directly with an elite team of senior engineers who have built mission-critical financial systems at scale for companies like Stripe, Square, and Uber.
• Tackle deep technical challenges by rebuilding retirement infrastructure from the ground up, replacing decades-old legacy systems with modern, transparent, event-driven architectures.
• Join a high-impact, $25M Series A startup backed by top-tier investors like Lux Capital, Forerunner Ventures, and Henry Kravis in a high-performance SoHo office.

What you will do

• Architect and build core trading, financing, and fund management systems that orchestrate and reconcile complex flows of funds with high reliability.
• Design and implement event-driven backend systems and asynchronous workflows using tools like Kotlin, Temporal, and modern cloud infrastructure.
• Participate in high-level architecture discussions and code reviews, maintaining complete ownership of mission-critical transaction systems from design to production.

The ideal candidate

• Has 3+ years of experience building distributed, high-reliability backend systems and event-driven architectures using languages like Kotlin, Go, or Rust.
• Demonstrates strong expertise in relational databases like PostgreSQL/MySQL and cloud infrastructure (AWS/GCP), with a focus on correctness and system reliability.
• Thrives in a fast-paced, high-agency environment and is excited to work in-office in SoHo to solve complex social and financial problems.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed

Company Description

Tribal Bio is a tier-1 VC-backed startup building the AI-native infrastructure layer for biotech. Having raised $1M and currently closing a $1.5M pre-seed round with San Francisco investors, Tribal Bio helps pharma teams accelerate drug discovery through agentic AI systems, clinical intelligence, and advanced regulatory workflows.

Job Description

As a Founding Engineer at Tribal Bio, you will work directly with the founders to build the technical foundation of an ambitious biotech infrastructure platform. You'll architect agentic AI workflows, manage complex biomedical data, and ship production-grade software that solves real-world drug discovery challenges. This high-impact role offers significant ownership and a clear path toward technical leadership.

Location

London, UK

Why this role is remarkable

• Join as an early employee at a tier-1 VC-backed startup closing a $1.5M pre-seed round with top-tier SF investors.
• Directly impact the drug discovery process by building AI systems for one of the world's most critical industries.
• Benefit from significant equity upside and a direct path to technical leadership or CTO-track roles as the company scales.

What you will do

• Design and implement agentic AI workflows for drug discovery, clinical asset evaluation, and complex regulatory use cases.
• Build robust backend systems and data infrastructure to handle fragmented biomedical, scientific, and clinical information.
• Collaborate directly with founders and customers to prototype, iterate, and ship production-ready LLM-powered tools.

The ideal candidate

• Exceptional hands-on builder with 0-5 years of experience shipping production software in high-ambiguity startup environments.
• Strong technical generalist proficient in full-stack or backend engineering with a focus on LLMs, agents, or AI workflows.
• High-agency individual who thrives on intensity, moves fast across the stack, and communicates clearly with founders and customers.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Platform Engineer

Salary

Not Disclosed

Company Description

StackOne is a $24M Series B London-based startup backed by GV and Workday Ventures, building the leading AI Integration Gateway. They provide a unified API layer for HR, CRM, and ATS platforms, enabling SaaS providers to orchestrate scalable, enterprise-grade integrations for AI agents and business systems.

Job Description

As the first dedicated Senior Platform Engineer, you will own the infrastructure behind StackOne’s AI Integration Gateway. Reporting to the CTO, you'll lead the migration from AWS CDK to Terraform, optimize CI/CD pipelines for a growing monorepo, and architect the delivery of the platform into customers' own cloud environments via BYOC models.

Location

London, UK

Why this role is remarkable

• Foundational Impact: Join as the first dedicated platform engineer, defining the infrastructure strategy and DevOps culture from the ground up for a high-growth startup.
• Blue-Chip Backing: Backed by top-tier investors GV (Google Ventures) and Workday Ventures with $24M raised to solve complex enterprise integration challenges.
• Complex Engineering: Work on cutting-edge "Bring Your Own Cloud" (BYOC) architecture, delivering SaaS infrastructure directly into major enterprise cloud accounts like AWS, GCP, and Azure.

What you will do

• Lead the transition of the entire AWS estate from AWS CDK to Terraform while maintaining high reliability for production workloads like ECS Fargate and Aurora.
• Architect and automate the deployment pipeline, consolidating toward a monorepo with incremental, affected-only testing to ensure rapid developer feedback loops.
• Build the versioning, packaging, and delivery systems required to ship StackOne’s platform into customer-managed cloud environments with full observability and security.

The ideal candidate

• Has 4+ years of experience in platform engineering or SRE, with deep expertise in AWS services including ECS/Fargate, RDS/Aurora, and Lambda.
• Demonstrates high proficiency in Infrastructure as Code (Terraform/CDK) and programming in TypeScript or Python to build developer tools rather than just configuration.
• Possesses a security-first mindset with experience securing CI/CD pipelines and ideally shipping software into customer-managed cloud or on-prem environments.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Account Executive, ISV Partnerships

Salary

$280k-$320k OTE + Equity

Company Description

OneNotary, Inc. is a Series A infrastructure company backed by Jackson Square Ventures and DocuSign Ventures, building the "Stripe for human-verification." They provide the essential layer for regulated digital workflows through scalable software and a nationwide network of 50,000+ state-credentialed notaries, currently growing at 2-3x year-over-year.

Job Description

Join OneNotary, Inc. as an Account Executive to own and scale ISV partnerships across HR tech, legal tech, and fintech. You will sell embedded notarization infrastructure—similar to Stripe—to major software platforms. This is a builder's role where you'll own the full cycle from technical discovery with engineering leaders to closing $1M+ integration-based deals.

Location

San Francisco, USA

Why this role is remarkable

• OneNotary, Inc. is the category leader in digital notarization, already embedded in industry giants like DocuSign, Fragomen, and Procore, positioning you to sell a proven, high-demand product.
• This is a rare infrastructure-sales seat where you will define the go-to-market motion for ISV partnerships at a high-growth, Series A startup backed by DocuSign Ventures.
• You will work on complex, multi-year platform deals that integrate deeply into the workflows of the world's largest software platforms, offering significant professional impact and high-stakes closing experience.

What you will do

• Identify and prioritize high-value ISV targets within the HR, legal, and fintech verticals, mapping product architectures to find optimal entry points for embedded notarization.
• Lead the entire sales cycle from outbound prospecting and technical discovery with VP-level Engineering and Product leaders to contract negotiation and successful partner launch.
• Partner with internal Product and Engineering teams to shape the API roadmap based on partner needs, building repeatable playbooks for your assigned software verticals.

The ideal candidate

• 10+ years of experience in consultative enterprise tech sales or business development, specifically closing $1M+ deals involving APIs, embedded infrastructure, or workflow software.
• A proven hunter mindset with a track record of building outbound pipelines from scratch through direct outreach, networking, and a deep presence within specific industry verticals.
• Technically proficient enough to lead integration discussions and describe API workflows to developers and product managers without needing a dedicated solutions engineer for early-stage discovery.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Engineering Lead

Salary

£120k-£150k + Equity

Company Description

Attio.com is a $116M Series B startup building the CRM for the AI era, backed by GV, Redpoint, and Balderton.

Job Description

As an Engineering Lead, you will drive technical excellence by spending 80% of your time coding and 20% leading a high-performing squad of 4-6 engineers. You’ll design scalable backend systems in Node.js/TypeScript or Go, handle massive event volumes, and collaborate directly with customers to shape the future of GTM infrastructure.

Location

London, UK (Hybrid) / Remote (UK, DE, PL, PT, IE)

Why this role is remarkable

• Build the infrastructure for a $130B market alongside leadership from Google Cloud and Snyk, operating with high autonomy and minimal process.
• Join a hyper-growth trajectory with 10x ARR growth in 24 months and $116M in funding from elite investors like GV and Redpoint.
• Enjoy a "builder-first" culture where engineers work directly with customers and hold an exceptionally high bar for craft and shipping speed.

What you will do

• Design and evolve a technical architecture capable of processing over 250,000 events per minute on GCP and AWS.
• Contribute 80% of your time as a hands-on IC across the stack using Node.js, TypeScript, Go, or React.
• Mentor and grow a focused team of 4-6 engineers, raising the technical bar and driving end-to-end feature delivery.

The ideal candidate

• Proven experience designing secure, reliable, and scalable backend systems at a high-growth SaaS or developer tools company.
• Deep technical expertise in Node.js/TypeScript, Go, or React, with recent experience building in production cloud environments (GCP/AWS).
• Demonstrated aptitude for technical leadership and a passion for crafting products that delight users through rigorous engineering and attention to detail.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Product Engineer

Salary

$165K - $215K + Equity

Company Description

Cranston AI is a YC F25-backed startup that raised $4M+ to rebuild the accounting back office from the ground up using AI agents. Based in San Francisco, they automate complex manual workflows like tax preparation and bookkeeping for dozens of growing CPA firms already using their platform across the country.

Job Description

As the first engineering hire at Cranston AI, you will own entire product surfaces end-to-end, from data models to AI agent behaviors. You’ll transform messy accounting workflows into durable software, working directly with the founders to scale a system already generating real revenue in a massive $900B underserved market.

Location

San Francisco, USA / Remote

Why this role is remarkable

• Join as the first engineer at a YC-backed company with $4M+ in funding and significant revenue traction within its first 60 days.
• Work directly with experienced founders, including a technical leader from Databricks and an industry expert who previously managed a major accounting firm.
• Shape the future of a $900B industry by building agentic AI that solves structural labor shortages and automates high-stakes professional services.

What you will do

• Own and build core product workflows for tax prep, bookkeeping, and client operations using React, TypeScript, and PostgreSQL.
• Design and implement sophisticated AI agent loops that understand accounting context and automate multi-step manual processes.
• Translate complex real-world CPA firm requirements into clean product abstractions, interfaces, and durable workflow primitives.

The ideal candidate

• Proven experience shipping production-quality full-stack applications and turning ambiguous customer needs into functional, high-stakes software.
• Fluency with modern AI coding tools and the ability to hold agent-generated output to an exceptionally high technical standard.
• A high-agency, founder-level mentality with the technical range to navigate everything from infrastructure to user-facing interface design.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed + Equity

Company Description

1Deploy is a VC-backed Dublin startup founded by 2x exited founders building AI agents that automate enterprise operations for logistics and transportation companies.

Job Description

As a Founding Engineer at 1Deploy, you will own the end-to-end architecture for AI agents that run enterprise operations on autopilot. Working directly with 2x exited founders, you’ll build agent harnesses, deployment infrastructure, and logic for real-world applications in logistics and transportation. This is a 0-1 role for autonomous builders.

Location

Remote

Why this role is remarkable

• Work alongside founders who previously exited to Wayflyer and Blackstone, gaining invaluable insight into scaling high-growth technology businesses.
• Join a VC-backed startup with growing ARR and live paying customers, offering the excitement of 0-1 building with validated market demand.
• Own the entire technical stack for agentic systems, from custom MCP servers to deployment infrastructure, with full architectural autonomy.

What you will do

• Design and implement production-grade AI agent systems including harnesses, evaluation frameworks, and deployment infrastructure using Python and FastAPI.
• Ship features and architectural improvements directly to enterprise customers in the logistics and transportation sectors to drive immediate operational impact.
• Collaborate with founders to define the technical roadmap and make critical architectural decisions that shape the future of the platform.

The ideal candidate

• Demonstrates professional mastery of agentic coding tools like Claude Code and has built custom harnesses or MCP servers to optimize workflows.
• Possesses deep experience in backend systems development, specifically with Python and FastAPI, while maintaining the ability to wire up frontend components.
• Thrives in high-autonomy environments with a strong bias for action, preferring to ship functional iterations today rather than waiting for perfection.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer (Backend)

Salary

Not Disclosed

Company Description

Letly is a £2M pre-seed AI-native operating company rebuilding the home rental lifecycle, from viewings and payments to repairs.

Job Description

As a Backend Engineer at Letly, you will build the foundational systems powering the entire rental ecosystem. You’ll architect scalable microservices, design high-throughput APIs, and integrate advanced AI/ML models into production workflows. This role offers the unique challenge of digitizing complex real-world operations for landlords, tenants, and vendors.

Location

London, UK

Why this role is remarkable

• Build the world's first AI-native infrastructure for the home, modernizing a fragmented industry currently split across agents, banks, and service providers.
• Backed by £2M in pre-seed funding from elite investors who previously built global financial infrastructure handling billions in daily transaction value.
• High-agency environment where your code directly manages real-world assets, financial integrations, and regulatory compliance for thousands of concurrent users.

What you will do

• Architect and maintain scalable microservices using NestJS and TypeScript to automate the end-to-end rental lifecycle and financial rails.
• Collaborate with AI engineers to integrate LLMs into production workflows, pushing the boundaries of how AI handles real-world property and money.
• Own the full engineering cycle by participating in DevOps, infrastructure management on GCP/GKE, and database optimization across MongoDB paradigms.

The ideal candidate

• Strong proficiency in backend development (TypeScript/Node.js preferred) with deep experience building microservices and RESTful API architectures.
• Proven ability to manage complex data structures and event-driven systems, ideally with familiarity in MongoDB, Kubernetes, and GitOps practices.
• A first-principles thinker with an obsession for code quality and the adaptability to thrive in a fast-paced, high-stakes operational environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer/CTO

Salary

Not Disclosed

Company Description

GETPYTHIA LIMITEDPy is a London-based AI startup backed by an angel round from founders and executives at Anthropic, Deliveroo, and Revolut, building an evaluation layer for strategic finance teams to automate complex modeling and analysis.

Job Description

As the first engineering hire at GETPYTHIA LIMITEDPy, you will own the entire technical stack and architecture for an AI-native strategic finance platform. You'll build production-ready agents and data pipelines, transitioning the current v1 product into a scalable infrastructure that replaces high-cost headcount with sophisticated, reliable software automation.

Location

London, UK

Why this role is remarkable

• True technical ownership as the first engineer, taking over from the founder to shape the entire AI architecture, infrastructure, and engineering culture from day one.
• Join a high-pedigree founding team backed by top-tier angel investors from Anthropic, Palantir, Revolut, and Uber, focusing on a massive market opportunity in strategic finance.
• Receive significant founding equity and the opportunity to scale into a CTO role while solving critical, high-stakes problems for post-Series B and pre-IPO finance teams.

What you will do

• Design and maintain production-grade AI agents and LLM-powered systems using Python and TypeScript to handle complex financial modeling and analysis tasks.
• Take full ownership of the product lifecycle, from initial architecture decisions and infrastructure setup to iterating on features based on direct feedback from design partners.
• Develop a robust evaluation layer that ensures the rigor and governance required for financial data while leveraging the speed and insights of generative AI.

The ideal candidate

• 3-10 years of experience with a background combining the technical rigor of BigTech (Google, Meta, Stripe) with the rapid iteration and adaptability of an early-stage startup environment.
• Proven track record of building and shipping production AI systems, with deep expertise in Python, TypeScript, and the development of sophisticated autonomous agents.
• Exceptional ability to manage large datasets and complex information flows, ideally within the finance or fintech domain, while maintaining a high velocity of delivery.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer (Full Stack)

Salary

$150k-$225k + Equity

Company Description

Neptune is a $7.5M venture-backed startup building a shared AI brain for couples to manage major life decisions. Backed by Floodgate and The General Partnership, Neptune was founded by product and engineering leaders from Google, Stripe, and Uber to simplify complex financial and legal workflows through emotionally intelligent technology.

Job Description

As Neptune's first founding engineer, you will architect and build the core AI engine and product experience from the ground up. You'll work alongside world-class founders to turn emotionally charged financial decisions into seamless, trust-based workflows. This high-impact role involves setting the technical foundation while shipping features that directly influence how couples build wealth.

Location

New York, USA

Why this role is remarkable

• Join a world-class founding team including the creator of Google Forms and the founding engineer of Stripe Link.
• Build a category-defining product backed by $7.5M from top-tier investors like Floodgate (early backers of Lyft, X, and Twitch).
• Gain massive ownership and founding-level equity while working with cutting-edge LLMs on high-trust, real-world financial and legal use cases.

What you will do

• Design and ship the "Neptune brain," a shared context engine that manages a couple's full financial and legal history.
• Develop conversational AI and LLM-powered workflows that translate complex model outputs into high-credibility user experiences.
• Own features end-to-end across the stack, from backend architecture and Plaid integrations to frontend execution in Next.js.

The ideal candidate

• Has 4–7 years of full-stack experience with a track record of shipping impactful production features in high-trust environments.
• Demonstrates deep "AI-native" intuition, using LLMs as force multipliers and understanding their performance across sensitive financial tasks.
• Possesses early-stage startup DNA, characterized by extreme agency, product-thinking, and the ability to thrive in an in-office NYC environment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Product Engineer

Salary

$200,000 - $230,000 + Equity

Company Description

Seed-stage PropTech startup founded by MIT alumni with $1M ARR

Job Description

You will lead the technical architecture for an AI-powered operating system for commercial real estate. As a high-ownership product engineer, you will build full-stack features using Python and TypeScript, design complex data pipelines, and develop real-time collaborative tools that enable brokers and investors to manage billions in physical assets efficiently.

Location

Cambridge, USA

Why this role is remarkable

• Direct influence on the product roadmap and technical foundation of a startup already generating $1M ARR with a lean team of ten.
• High-autonomy environment where you write your own tasks and move from first principles rather than following a corporate playbook.
• Significant equity upside in a company building the "Salesforce + Claude for Real Estate," modernizing a massive, fragmented global industry.

What you will do

• Drive full-stack architecture and technical direction across backend, frontend, and data services using Python and TypeScript.
• Design and maintain high-performance data pipelines to unify disparate sources using orchestration tools like Dagster or Airflow.
• Build and ship multiplayer, real-time synchronization features and AI-agent workflows to enhance user collaboration and data analysis.

The ideal candidate

• Proven experience designing and shipping full-stack applications with heavy data model manipulation in Python, TypeScript, and PostgreSQL.
• Technical expertise in building data pipelines, handling geospatial data (PostGIS/GeoJSON), and optimizing complex queries for speed.
• A craftsperson's mindset with a history of driving technical strategy at early-stage startups or as a former founder.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Forward Deployed Engineer

Salary

$140k-$250k + Equity

Company Description

Opal Security is a $59M Series B cybersecurity firm backed by Greylock and Battery, building AI-native identity governance for companies like Databricks and Figma.

Job Description

As a Forward Deployed Engineer at Opal Security, you will serve as the critical technical bridge between enterprise customers and our core product team. You’ll architect complex deployments, build custom integrations, and solve mission-critical identity challenges for high-scale organizations. This high-impact role blends deep software engineering with strategic field-facing problem-solving.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-growth Series B team with $59M in funding from premier investors like Greylock and Battery, where over 60% of the team has joined since early 2026.
• Work at the cutting edge of AI-native identity governance, building the essential security infrastructure that organizations like Databricks and Figma use to manage AI agents.
• Benefit from direct mentorship under a world-class leadership team featuring veterans from Meta, Nutanix, and Cisco in a culture of extreme autonomy and product influence.

What you will do

• Embed within enterprise sales and implementation cycles to architect custom deployments and prototype integrations that unblock major customers during critical growth phases.
• Debug complex customer environments, including Terraform configurations and RBAC issues, while writing production-quality code that feeds directly back into the core Opal product.
• Serve as a primary technical advisor to CISOs and security teams, translating high-level field requirements into specific product roadmaps and engineering priorities.

The ideal candidate

• Possesses a strong software engineering background with the ability to write production-ready code across the stack while remaining pragmatic about unblocking customer needs.
• Demonstrates exceptional communication skills, excelling in high-stakes environments where listening, asking deep technical questions, and building customer trust are vital for success.
• Has experience with modern infrastructure tools like Terraform and a passion for rethinking identity governance and access management in the age of AI.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Head of Forward Deployed Engineering

Salary

Not Disclosed

Company Description

CommodityAI is an early-stage startup building the operating system for the global commodities industry, automating the unstructured data—from emails and PDFs to complex contracts—that powers global trade.

Job Description

As the Head of Forward Deployed Engineering, you will lead the post-sale function, turning signed contracts into successful deployments. You will bridge the gap between customers, product, and engineering, designing technical playbooks and scaling the FDE team to help physical traders modernize their legacy workflows with AI-driven automation.

Location

San Francisco, USA

Why this role is remarkable

• Ownership of the entire post-sale customer function, transitioning customers from contract signature to high-value go-live for a critical industry.
• Opportunity to build a fundamental department from scratch, including playbooks, internal tooling, hiring plans, and automated onboarding workflows.
• Direct impact on the global commodities market by replacing manual, error-prone legacy processes with sophisticated LLM-based extraction and integration systems.

What you will do

• Lead complex technical implementations including data modeling, API integrations, and document extraction workflows for physical trading customers.
• Build the FDE function from the ground up, establishing operating cadences, escalation paths, and scalable onboarding templates.
• Translate messy real-world customer requirements into crisp product specifications and work closely with engineering to influence the roadmap.

The ideal candidate

• Over 5 years of experience in Forward Deployed Engineering, Solutions Engineering, or Technical Customer Success at a high-growth startup.
• Hands-on technical proficiency with the ability to write code, debug complex workflows, and reason through LLM-based data models.
• Proven track record of managing multi-stakeholder deployments and a deep curiosity for solving operational edge cases in global logistics.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Communications Lead

Salary

£80k-£90k + Equity

Company Description

Scarlet is a Creandum-backed London company of ~65 people, serving as Europe's only Notified Body specializing in AI and software medical device certification. They accelerate the path for cutting-edge medical technology to reach patients by removing regulatory delays for the world's most ambitious healthcare innovators.

Job Description

You will build Scarlet’s communications function from the ground up, owning content strategy, social media, and PR. By shaping the narrative around regulated AI medical devices, you’ll define the voice of a critical global industry. This hands-on role involves writing high-impact stories, managing LinkedIn presence, and securing press coverage to drive brand equity.

Location

London, UK

Why this role is remarkable

• Join Europe's only specialized Notified Body for medical AI, sitting at the unique intersection of cutting-edge technology and global healthcare regulation.
• Backed by Creandum with proven product-market fit and exponentially growing revenue, offering the stability of a successful firm with the autonomy of a startup.
• Work directly with founders and world-leading experts, gaining unprecedented access to the most innovative companies in the medical technology sector.

What you will do

• Create and edit world-class content, including customer success stories and technical blogs, to establish Scarlet as the definitive media voice in healthcare.
• Lead Scarlet’s social media strategy, maintaining a high-quality daily cadence on LinkedIn to engage the industry and build brand authority.
• Secure strategic press coverage and organize speaking opportunities at global conferences, elevating the profiles of Scarlet’s leadership team and technical experts.

The ideal candidate

• Brings 5+ years of experience in communications, journalism, or content creation with a portfolio demonstrating extraordinary writing and editorial judgment.
• Possesses a high EQ and an insatiable curiosity for complex technical topics, with the ability to make them feel human, urgent, and accessible.
• Thrives in a hands-on environment, prioritizing the creation and execution of original PR initiatives over managing large teams or external agencies.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Full Stack Engineer

Salary

$250k-$300k + Equity

Company Description

Caplight is building the real-time data and trading infrastructure for private markets, bringing transparency to historically opaque and illiquid assets. Based in San Francisco, Caplight provides institutional players with the pricing and tools needed to move quickly on private securities, transforming fragmented data into actionable financial intelligence.

Job Description

Join Caplight’s founding team as a Full Stack Engineer to build the infrastructure powering private market trading. You will own entire product areas, from real-time pricing data surfaces to institutional-grade trading interfaces. This high-impact role requires a blend of technical depth, product instinct, and a strong design sense to create sophisticated financial tools.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-leverage founding team in San Francisco with significant influence over the product’s direction and the company’s ultimate culture.
• Tackle deep technical challenges in private market infrastructure, turning fragmented, stale data into real-time, institutional-grade trading and pricing tools.
• Experience a unique "AGI-pilled" environment where you are encouraged to max out parallel agent management to accelerate development and product delivery.

What you will do

• Own and build end-to-end product features, from the underlying data infrastructure to the sleek, intuitive interfaces relied on by institutional users.
• Collaborate closely with the small founding team to translate complex business requirements into high-performance financial infrastructure and data surfaces.
• Leverage advanced AI workflows and agent management to ship features rapidly without compromising on design quality or technical robustness.

The ideal candidate

• At least 5 years of full-stack engineering experience with a proven track record of shipping complex, user-facing products at scale.
• Strong product instincts and an exceptional eye for design, capable of building beautiful, functional features without needing a dedicated designer.
• An entrepreneurial, "AGI-pilled" mindset with high business acumen and the ability to move fast on ambiguous, cross-disciplinary problems.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer, Full Stack

Salary

Not Disclosed

Company Description

Formulary Financial, Inc. is an AI-native fund administration services firm backed by Khosla Ventures and Serena Ventures, managing billions in assets for leading managers. The company is transforming private market operations by replacing error-prone manual processes with a data-driven intelligence platform built by veterans in fintech and artificial intelligence.

Job Description

As a Senior Software Engineer at Formulary Financial, Inc., you will build the world's first AI-native platform for comprehensive fund administration. You'll drive the development of agentic AI capabilities and scalable cloud infrastructure to transform private market operations. Joining this early-stage team, you'll bridge the gap between complex financial services and cutting-edge data intelligence.

Location

New York, USA

Why this role is remarkable

• Join a high-growth fintech backed by tier-one investors like Khosla Ventures and Acrew Capital that already manages billions in assets within its first year.
• Build groundbreaking agentic AI capabilities from scratch to automate the lifecycle of private market investments and fund operations for the world's largest asset managers.
• Work alongside repeat founders and industry veterans in an environment that values intellectual debate, ownership mindset, and rapid, high-quality product shipping.

What you will do

• Design and implement scalable full-stack architectures and agentic AI tools to streamline fund administration, GP, and LP workflows for high-touch service delivery.
• Develop robust data management systems and back-end frameworks to ensure accurate, real-time access to complex financial data across the investment lifecycle.
• Collaborate on the technical roadmap, optimizing cloud solutions using AWS/Azure and containerization while maintaining high security, defensive programming, and reliability standards.

The ideal candidate

• Possesses 4+ years of hands-on full-stack engineering experience with a strong background in distributed SaaS architectures, data pipelines, and public cloud infrastructure.
• Demonstrates expertise in modern frontend development, API integration, and backend services with a proven track record of shipping quality products in fast-paced environments.
• Exhibits a mission-driven mindset with a keen interest in AI/ML, capable of navigating ambiguity to solve complex problems with minimal guidance.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

VP of Product

Salary

$250-300K + 20% Bonus + Equity

Company Description

OneNotary, Inc. is a $5M Series A verification infrastructure layer backed by Jackson Square Ventures, building the legal human-in-the-loop layer for digital workflows. With 50,000+ credentialed notaries and a strategic DocuSign partnership, they are scaling 2-3x yearly to become the trusted verification standard for regulated global industries.

Job Description

As the first VP of Product at OneNotary, Inc., you will transform a notary-focused service into a multi-vertical human verification infrastructure platform. Reporting to the CEO, you will own the product strategy, build the PM organization from scratch, and define the APIs powering strategic partnerships with giants like DocuSign.

Location

San Francisco, USA

Why this role is remarkable

• Join a $5M Series A company with proven traction, growing 2-3x year-over-year with a defensible moat of 50,000+ state-credentialed notaries.
• Shape a new category of infrastructure with a strategic partnership and investment from DocuSign already fueling enterprise and ISV motions.
• Lead the evolution from a single-service product to a comprehensive platform for identity verification, compliance attestation, and regulated KYC workflows.

What you will do

• Own the entire product strategy and roadmap across core verticals like notary and I-9, plus expansion into fraud deflection and lending solutions.
• Build and scale the product management organization from zero, hiring and developing a high-performance PM team to support enterprise expansion.
• Lead the embedded and API product experience, managing high-stakes design partnerships with top-tier enterprise accounts and strategic ISV partners.

The ideal candidate

• Brings 10+ years of product leadership in B2B SaaS, having scaled a platform company through the $10M to $50M+ ARR growth phase.
• Demonstrates deep expertise in API-first or embedded platform products, matching patterns from industry leaders like Stripe, Plaid, Twilio, or Okta.
• Possesses founder-adjacent DNA and the ability to thrive in regulated domains like fintech or legaltech while partnering closely with a technical founding team.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed + Equity

Company Description

cepter is a London-based AI infrastructure startup building the platform to unlock proprietary energy sector data for the AI era. Founded by Kaspar (ex-BCG/terralayr) and Duxi (ex-IBM/ETH Zurich), they are transforming complex technical reports and legal contracts into machine-ready data to accelerate the global energy transition.

Job Description

As the first engineering hire at cepter, you will architect the systems turning complex energy documents into actionable AI data. You'll build end-to-end features using FastAPI, React, and Temporal, owning everything from database migrations to LLM pipelines. This high-intensity role offers the chance to define the technical foundation for the energy transition's AI infrastructure.

Location

London, UK

Why this role is remarkable

• Shape a company from day one as the first engineer, working directly with founders from Oxford, BCG, and ETH Zurich to define the product architecture and culture.
• Solve critical data bottlenecks in the energy transition by building sophisticated AI pipelines that process high-stakes proprietary documents and complex legal technicalities.
• Join a high-performance, high-intensity culture designed for rapid shipping, utilizing cutting-edge tools like Temporal for workflow orchestration and AI-native development workflows with Cursor and Claude.

What you will do

• Ship end-to-end features across a FastAPI and React/TypeScript stack, designing durable domain APIs and data models that work in production-like PR previews.
• Build and debug complex Temporal workflows for long-running AI pipelines, ensuring idempotency, retries, and reliable structured extraction from unstructured documents.
• Own the entire infrastructure and DevOps lifecycle using Docker Compose and Railway, while improving developer experience through robust CI checks and observability.

The ideal candidate

• Brings at least 6 years of experience at high-performance tech startups with a proven track record of shipping full-stack products from scratch.
• Demonstrates deep expertise in Python/FastAPI, TypeScript/React, and building production-grade LLM/document pipelines using tools like Langfuse for quality diagnosis.
• Possesses a "founding bar" mindset: high agency in ambiguity, a bias toward small and correct changes, and comfort pairing with AI coding agents to accelerate delivery.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Cloud Engineer

Salary

Not Disclosed

Company Description

Prior Labs GmbH is an AI research and engineering organization focused on building and scaling foundation models that define the next generation of machine intelligence.

Job Description

As a Cloud Engineer at Prior Labs GmbH, you will architect the core infrastructure powering next-generation foundation models. You’ll design scalable backend systems, manage cloud-native deployments, and establish MLOps best practices. Working alongside world-class researchers, you'll bridge the gap between cutting-edge AI research and reliable, production-grade systems in a high-impact environment.

Location

Berlin, Germany

Why this role is remarkable

• You will have complete ownership over the architectural decisions and engineering best practices for serving state-of-the-art AI foundation models.
• This is a rare opportunity to build the backbone of an AI company from the ground up, working directly with top-tier AI researchers.
• The role offers significant autonomy and a clear path toward technical leadership or specialization in ML infrastructure as the team expands.

What you will do

• Design and implement robust, secure backend systems and production-grade APIs for serving and fine-tuning core foundation models.
• Manage core cloud infrastructure using Terraform for Infrastructure as Code (IaC), focusing on reliability, observability, and cost-efficiency.
• Implement secure, GDPR-compliant data storage and access controls while driving high standards for CI/CD and automated testing.

The ideal candidate

• Has 3+ years of professional experience in cloud engineering, SRE, or data platform roles with a track record of managing production infrastructure.
• Demonstrates proficiency in Python and hands-on experience with containerization and orchestration technologies like Docker and Kubernetes.
• Possesses a strong understanding of data modeling and processing, ideally with experience in MLOps or data warehousing platforms like Snowflake.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Agentic Engineer

Salary

$160k-$220k + Equity

Company Description

Snapp Stats is an a16z-backed startup building the ultimate AI conversational companion for sports fans and bettors. Led by repeat founders, including a co-founder of Caviar, the team leverages agentic systems and real-time sports data to deliver personalized insights and proactive recommendations to passionate fans and fantasy players.

Job Description

As an Agentic Engineer at Snapp Stats, you will own the orchestration layer of AI agents designed for sports fans. You will design robust agent loops, manage tool-call latencies, and implement sophisticated evaluation frameworks. This role bridges the gap between experimental LLM hacks and production-ready systems that thrive under real-world user interaction.

Location

San Francisco, USA

Why this role is remarkable

• Work at the cutting edge of agentic AI with a16z backing and a leadership team featuring the co-founder of Caviar.
• Direct impact on a product where users notice accuracy and speed immediately, operating at the emotional intersection of sports and betting.
• High-autonomy environment where your architectural decisions and tool designs go from concept to production within the same week.

What you will do

• Design and ship complex agent loops that manage long-horizon tasks, tool calls, and partial failures without degradation.
• Build and operate MCP servers to expose rich sports databases and content tools to both internal and partner agents.
• Establish rigorous evaluation harnesses and observability pipelines using tools like Logfire to monitor token spend, latency, and reliability.

The ideal candidate

• 5+ years of software engineering experience with at least 1.5 years shipping and operating production agentic systems for real users.
• Deep proficiency in production Python, async debugging, and agent frameworks like Google ADK, LangGraph, or Pydantic AI.
• Strong discipline in evaluations and observability, with the ability to move beyond vibes-based prompting to data-driven regression testing.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Head of Engineering

Salary

$225k-$325k + Equity

Company Description

BUILD, Inc. is a high-growth AI startup backed by Index Ventures and leaders from Blackstone and OpenAI. Founded in late 2024, they are building an agentic AI stack for institutional real estate, already generating 7-figure revenue and automating complex development workflows 90% faster for global asset managers.

Job Description

As Head of Engineering, you will own the technical execution of Build’s agentic AI platform. You’ll architect scalable systems, lead a high-output engineering team, and encode complex real estate domain logic into production-grade software. This hands-on leadership role is critical for scaling a product that institutional clients trust with multi-billion dollar decisions.

Location

San Francisco and New York City, USA

Why this role is remarkable

• Join a seed-stage powerhouse backed by Index Ventures and C-suite leaders from Blackstone and OpenAI, scaling from 7-figures toward 8-figures in revenue.
• Work directly with founders who scaled companies like 11x.ai and Gorillas, operating in a high-intensity environment that ships faster than teams ten times its size.
• Shape a generational company at the intersection of AI and the $300T+ built world asset class, turning digital infrastructure and energy projects into reality.

What you will do

• Own the engineering function end-to-end, including architecture, infrastructure, security, and execution velocity for a production-grade agentic AI platform.
• Hire and lead an elite, high-output engineering team, setting a technical bar focused on judgment, depth, and extreme ownership.
• Partner with product and domain leads to translate institutional real estate workflows into robust, observable AI systems that handle real-world load.

The ideal candidate

• Proven experience scaling a vertical AI company (e.g., Harvey, Sierra, or Glean) through major growth phases, with deep expertise in LLM production systems.
• A hands-on technical leader who still codes and can debug production issues while simultaneously making high-level architectural tradeoffs and hiring decisions.
• Extensive B2B or enterprise experience shipping software that institutional clients trust with high-stakes financial and regulatory data.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Research Scientist, Molecular Engineering

Salary

Not Disclosed

Company Description

Well-funded biotech platform startup

Job Description

Join an innovative San Francisco team as a Research Scientist, where you will lead the development of sophisticated biochemical assays and laboratory workflows. This role is central to advancing a next-generation biological platform, requiring a blend of precision experimentation and collaborative problem-solving to push the boundaries of molecular engineering and protein characterization.

Location

San Francisco, USA

Why this role is remarkable

• Work at the cutting edge of synthetic biology and molecular engineering in a high-impact, mission-driven environment.
• Backed by top-tier venture capital firms, ensuring the resources and stability needed to execute ambitious scientific goals.
• Opportunity to lead critical wet lab initiatives and directly influence the technological direction of the company's platform.

What you will do

• Develop and optimize high-throughput assays to evaluate and refine biological system performance and molecular function.
• Perform complex molecular biology procedures and manage experimental data pipelines to ensure high-quality scientific output.
• Partner with cross-functional engineering teams to translate computational insights into successful, scalable laboratory experiments.

The ideal candidate

• Extensive experience in a wet lab environment focused on biochemistry, molecular biology, or a related discipline.
• Demonstrated expertise in assay design, systematic troubleshooting, and experimental validation for protein or enzyme characterization.
• Proficiency in managing high-throughput workflows and the ability to analyze and interpret large experimental datasets.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer - Retain

Salary

£70k-£90k

Company Description

Flock is a £50M Series B insurtech leader using real-time data and telematics to redefine fleet insurance. Based in London, they provide data-driven risk assessment and safety insights for hundreds of UK fleets, including global giants like Amazon, DPD, Uber, and Bolt, helping customers prevent claims before they happen.

Job Description

As a Senior Software Engineer on the Retain team, you will lead the design and operation of full-stack services that embed Flock into the daily workflows of fleet owners. You'll own critical features end-to-end, leveraging a modern AWS serverless stack to build scalable products that improve safety and profitability for hundreds of commercial vehicle fleets.

Location

London, UK

Why this role is remarkable

• Work at the intersection of IoT and fintech for a Series B scale-up that has raised over £50M to disrupt the global fleet insurance market.
• High-impact ownership where you'll build features used daily by household names like Amazon, DPD, and Uber to manage their commercial operations.
• Join a mature engineering culture that prioritizes technical quality, providing a £1,500 annual L&D budget and dedicated time for professional growth.

What you will do

• Lead the architecture and delivery of backend services using TypeScript, Node.js, and PostgreSQL, ensuring high performance and schema reliability.
• Design and scale distributed systems on AWS utilizing Lambda, SQS, and EventBridge, managing infrastructure-as-code through Terraform or CDK.
• Collaborate with product and data teams to translate complex fleet management needs into technical scope and measurable customer-focused outcomes.

The ideal candidate

• At least 6 years of professional software experience, including 1-2 years operating at a Senior level with full-stack TypeScript proficiency.
• Proven track record of shipping and maintaining production-grade serverless applications within the AWS ecosystem and managing complex PostgreSQL databases.
• Strong product mindset with the ability to mentor junior engineers, lead technical design discussions, and drive engineering best practices across the team.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

AI/ML Engineer

Salary

$250k-$400k + Equity

Company Description

Known is a voice-first AI matchmaking platform that recently raised a $10M seed round led by Forerunner Ventures, NFX, and Pear VC. Based in San Francisco, Known replaces swiping with intimate, AI-driven single introductions, leveraging deep signals and personalization to facilitate real-world dates for a growing community of users.

Job Description

You will own the core matching and recommendation engines from zero to production scale. Working alongside founders from Uber and Cash App, you’ll build the systems that define the user experience for this voice-first dating app. This is a high-impact role requiring expertise in scaling user-facing algorithms for consumer personalization.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite founding team from Cosmos, Uber, and Cash App who have a proven track record of building high-growth AI-driven consumer products.
• Work at the forefront of consumer AI with $10M in seed backing from top-tier investors including Forerunner Ventures, NFX, and Pear VC.
• The recommendation engine isn't just a feature; it is the entire product, offering you total ownership over the company's core value proposition.

What you will do

• Design and implement the production-scale recommendation and ranking algorithms that power the core single-match experience for every Known user.
• Lead the transition of matchmaking systems from experimental prototypes to robust, scalable production environments capable of handling high-growth consumer traffic.
• Grow and mentor a small, high-performing technical team while maintaining a hands-on approach to shipping high-quality, user-facing personalization features.

The ideal candidate

• Proven experience building and scaling user-facing recommendation, matching, or ranking algorithms at an early-stage consumer company like Tinder, Instagram, or Spotify.
• Significant tenure as an early engineer during a 0→1 or rapid scaling phase, having stayed to see systems reach production maturity and scale.
• Strong leadership background with experience growing small technical teams and a passion for building intimate, high-signal personalization experiences for end users.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Lead Backend Engineer - Nucleus (AI & Back Office)

Salary

£110,000 - £130,000

Company Description

$75M Series C betting platform backed by The Raine Group

Job Description

Join a high-growth entertainment leader as the first technical lead for a greenfield AI & Back Office team. You will drive the development of internal platforms and pioneer practical AI integrations to transform engineering workflows. This player-manager role offers immense autonomy to ship production-grade Python systems that power a modern sports betting experience.

Location

Remote, UK

Why this role is remarkable

• Lead a brand-new, greenfield function with the autonomy to shape the technical direction and architectural standards for both internal platforms and AI strategy.
• Work within a well-funded Series C environment that has raised over $75M in equity, enjoying the stability of a 150-person company with a fast-moving startup culture.
• Direct impact on organizational velocity by building AI-powered tools that improve the daily lives of both engineers and non-technical staff across the entire business.

What you will do

• Lead and mentor a focused team of three engineers while remaining hands-on as a primary individual contributor to the core backend codebase.
• Architect and maintain the mission-critical internal back-office platform, including configuration management, operational dashboards, and internal APIs.
• Identify and productionize AI opportunities using LLM APIs and RAG pipelines to automate repetitive tasks and optimize developer experience.

The ideal candidate

• 7+ years of professional backend engineering experience with a strong proficiency in Python and modern cloud infrastructure like AWS, PostgreSQL, and Terraform.
• Practical experience integrating LLMs or AI orchestration frameworks into production-quality products, moving beyond simple prototypes to scalable business solutions.
• Proven ability to lead or mentor engineers in a hands-on capacity, managing sprint planning and delivery while maintaining a high quality bar through code reviews.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Junior Fullstack Engineer

Salary

£35k-£50k + Equity

Company Description

AethexAI Inc is a pre-seed voice AI startup building the infrastructure for emerging markets in Africa and the Middle East. Founded by Ayooluwa Odemuyiwa and Mariama Diallo, the company processes thousands of daily calls using proprietary speech models optimized for local dialects and unreliable connectivity.

Job Description

You will join AethexAI Inc as a Junior Fullstack Engineer supporting the Forward Deployed Engineering team. In this high-impact role, you'll manage one-off integrations, platform fixes, and custom builds for enterprise clients. Working across Python, AWS, and Kubernetes, you will enable the deployment of large-scale voice infrastructure globally.

Location

London, UK

Why this role is remarkable

• Work on cutting-edge voice AI processing thousands of calls daily across Africa and the Middle East using proprietary speech models.
• Gain massive ownership as one of the first 10 employees at a pre-seed startup backed by experienced founders.
• Access a genuine breakout opportunity with early-stage equity and the chance to solve complex engineering challenges for global enterprise clients.

What you will do

• Build and maintain custom integrations and API fixes that allow enterprise clients to seamlessly use the AethexAI developer platform.
• Support the Forward Deployed Engineering team by executing fullstack technical fixes across frontend and backend production systems.
• Contribute to the development of SDKs and developer tools using a modern tech stack including Python, AWS, and Kubernetes.

The ideal candidate

• Has at least one internship or professional engineering role under their belt with a proven record of shipping code.
• Demonstrates proficiency working across the full stack and is comfortable integrating various third-party and internal APIs.
• Exhibits a high-energy, "hungry" mindset with the speed and adaptability required to thrive in an early-stage startup environment.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Software Engineer

Salary

Not Disclosed + Equity

Company Description

CommodityAI is a YC W24-backed startup building the operating system for the global commodities industry. Supported by Rebel Fund and the founders of YouTube and Reddit, the company manages billions in contract value by using AI to automate manual operations across energy, metals, and agricultural supply chains as they approach Series A.

Job Description

As a Senior Software Engineer at CommodityAI, you will architect core technical pillars for an industry-scale operating system. You will build high-throughput backend APIs and production AI agents that transform unstructured data into deterministic trade insights. Working directly with founders, you'll solve complex logistical challenges while scaling infrastructure for global transaction volumes.

Location

San Francisco, USA

Why this role is remarkable

• Join a fast-growing YC W24 company backed by tech royalty, including the founders of YouTube and Reddit, as they approach a Series A milestone.
• Directly influence the architecture of a platform managing billions of dollars in transaction value for the foundational sectors of global trade.
• Operate in a high-trust, low-bureaucracy environment in San Francisco where you have a direct seat at the table alongside the founding team.

What you will do

• Design and scale robust backend APIs and data pipelines using Python and Go to process massive commercial contract volumes.
• Architect agentic AI systems and structured extraction pipelines that turn chaotic PDFs and emails into reliable, production-ready data.
• Own end-to-end product features across the full stack, from sophisticated data orchestration to clean, intuitive user workflows in React.

The ideal candidate

• Brings 6+ years of engineering experience, with a proven track record as a core contributor at high-growth startups or early technical leadership.
• Possesses hands-on expertise deploying production AI/LLM systems, specifically focusing on structured outputs, retrieval-augmented generation, or complex agent orchestration.
• Demonstrates strong business curiosity and technical judgment, effectively translating messy real-world logistics into elegant, high-performance code and pragmatic engineering trade-offs.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Full-Stack Engineer

Salary

$180k-$200k + Equity

Company Description

blok is an AI-native startup backed by MaC VC, Protagonist, Weekend Fund, and a16z scouts, building behavioral simulation systems. Founded by exited founders and researchers from Stanford and MIT, they help product teams predict human behavior at scale by testing decisions through AI agents before shipping.

Job Description

As a Senior Full-Stack Engineer at blok, you will build production systems that turn complex agentic simulations into actionable product insights. Working across Python and React/TypeScript, you’ll own features end-to-end within a high-velocity engineering tribe, bridging the gap between raw behavioral data and critical product decisions for high-growth customers.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite team of 15, including exited founders and researchers from Stanford, MIT, Discord, and Airbnb, solving frontier AI problems.
• Work at the cutting edge of behavioral science and AI, building simulation systems that actually predict how real users think and act.
• Experience high-velocity ownership with bi-weekly shipping cycles, backed by top-tier investors like MaC VC, Weekend Fund, and a16z scouts.

What you will do

• Build and evolve the core Python platform used by customers to design experiments, run simulations, and explore behavioral outputs.
• Translate raw agent behavior into intuitive product functionality, bridging the gap between complex backend simulations and frontend user experiences.
• Design and implement systems that provide visibility and trust, helping users understand why the AI simulated specific human behaviors.

The ideal candidate

• Over 6 years of experience building end-to-end production systems using Python and React/TypeScript in high-stakes environments.
• Proven track record with AI-native applications, specifically agentic systems or LLM-powered products that solve real-world user problems.
• A product-minded engineer who thrives in ambiguity, values radical candor, and takes extreme ownership of outcomes rather than just code.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Special Projects Lead

Salary

£70k-£80k + Equity

Company Description

Global B2B supply chain platform

Job Description

You will own high-impact commercial bets from thesis to proven economics. This founder-operator role involves launching new business lines, negotiating complex partnerships with major brands, and building AI-native workflows to scale supply chain logistics. You’ll lead the transition from experimental pilots to core operational motions, directly influencing the company's global expansion.

Location

London, UK

Why this role is remarkable

• Work in a high-leverage "founder-operator" seat with total ownership of end-to-end commercial bets.
• Join a well-funded, hyper-growth scale-up backed by top-tier global venture capital firms.
• Directly impact future revenue streams by building the core business motions for a global marketplace.

What you will do

• Take strategic commercial bets from initial thesis to signed deals and live pilots.
• Negotiate bespoke, high-value partnerships with major brands, liquidators, and logistics providers.
• Develop and implement AI-native workflows and automated systems to drive operational leverage.

The ideal candidate

• Background as a founder or early-stage operator who has built business lines from scratch.
• Experience closing high-value, bespoke deals with senior stakeholders and brand directors.
• Strong commercial rigour with the ability to analyze unit economics and scale pilots quickly.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding AI Engineer

Salary

£70k-£120k + 2-4% Equity

Company Description

VC-backed AI security startup

Job Description

You will join as the first engineering hire after the founders, taking full ownership of a platform securing autonomous AI agents. You will build ML models for agent classification, manage runtime evidence pipelines, and enforce security policies across various modalities, directly shaping the infrastructure layer of enterprise-grade AI security.

Location

London, UK

Why this role is remarkable

• Founding equity and massive ownership as the first engineering hire alongside founders from MIT and NASA.
• Backed by top-tier VCs and elite global startup programs including Microsoft and Google for Startups.
• Opportunity to build in AI security, one of the fastest-growing and most critical categories in enterprise tech.

What you will do

• Design and implement ML systems for real-time agent classification and detection.
• Build robust runtime evidence pipelines to monitor and secure autonomous systems in production.
• Architect and enforce policy layers across diverse AI models and modalities.

The ideal candidate

• Technical expertise in AI/ML systems, detection and response, or security infrastructure.
• Proven track record of shipping production-grade ML or significant open-source/research contributions.
• High-autonomy builder who thrives in early-stage environments and handles technical ambiguity with ease.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Account Executive — Fintech & Crypto

Salary

$150k base / $300k OTE + Equity

Company Description

Formance is a $21M Series A financial infrastructure company backed by PayPal Ventures, building an open-source ledger platform for the next generation of fintechs and banks.

Job Description

As Formance’s first US Account Executive, you will spearhead the company’s American expansion from our New York office. You will own the full sales cycle for complex, high-ACV infrastructure deals, partnering with technical leaders at major fintechs and crypto platforms to replace legacy ledger systems with our developer-loved, API-first financial backend.

Location

New York, USA

Why this role is remarkable

• Founding GTM opportunity: Join as the first US sales hire to build the American market from the ground up with the autonomy to write the playbook.
• Backed by industry giants: We are supported by PayPal Ventures and already power core infrastructure for leading platforms like Coinbase and Fireblocks.
• Technical product-market fit: Sell an open-source, developer-centric product that solves a mission-critical engineering problem, earning trust through architecture rather than scripts.

What you will do

• Drive the entire sales process for $100K–$300K ACV deals, navigating complex procurement and compliance cycles with CTOs and VPs of Engineering.
• Partner directly with the founders and engineering team to translate US market signals into product roadmap priorities and strategic GTM motions.
• Prospect and close high-potential targets across the US fintech and crypto ecosystems, managing everything from discovery calls to final contract execution.

The ideal candidate

• At least 4 years of B2B technology sales experience with a proven track record of closing complex infrastructure deals in fintech, payments, or crypto.
• Exceptional technical fluency with the ability to explain ledger architecture and API-first concepts to sophisticated engineering and product buyers.
• Experience as an early-stage sales hire who thrives in environments without established SDR support or predefined playbooks, specifically within the US market.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

AI Solutions Engineer

Salary

$120k-$170k + $30k Commission + Equity

Company Description

$36M Series A AI platform backed by the creators of Transformers and Gemini

Job Description

Join a high-growth startup processing tens of millions of documents for enterprise legal and finance teams. As the second Solutions Engineer in NYC, you will bridge the gap between sales and product, designing agentic AI workflows using GPT-4, Claude, and Gemini to solve complex automation challenges for Fortune 500 clients.

Location

New York, USA

Why this role is remarkable

• Work at the frontier of agentic AI with a flagship product that 4x-ed revenue last year and maintains a 160% net retention rate.
• Join a lean, high-trust team backed by the world's leading AI pioneers, including investors who helped build the foundations of modern LLMs.
• High autonomy and impact as one of the first technical hires in the NYC office, directly shaping how enterprises adopt multi-modal AI at scale.

What you will do

• Lead technical discovery and design sophisticated AI solutions, conducting POCs that demonstrate the value of no-code agentic workflows to enterprise prospects.
• Build and implement complex Python-based data pipelines and prompt engineering strategies to automate multi-modal document processing for regulated industries.
• Act as the primary technical partner for high-value accounts, managing up to 10 concurrent projects while feeding critical insights back to product engineering.

The ideal candidate

• Proven experience delivering LLM-powered solutions to customers, with deep technical knowledge of RAG, prompt engineering, and foundation model APIs.
• Strong software development skills in Python and a "prototyper at heart" mentality for building repeatable technical solutions to business problems.
• Exceptional communicator capable of articulating a complex AI vision to both C-suite business stakeholders and technical engineering leaders.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Mobile Application Engineer

Salary

Not Disclosed + Equity

Company Description

Seamflow.com is a London-based startup that raised an oversubscribed $4.5M seed round from Tier-1 investors like Coinbase, Reddit, Klarna, and Spotify to modernize manual systems in aerospace, healthcare, and energy.

Job Description

You will design and build end-to-end mobile workflows that translate complex real-world processes into intuitive software. Embedded with customers in the field, you’ll ship production-grade React Native apps featuring offline-first capabilities and AI integrations. This high-ownership role involves moving from customer calls to deployment, solving critical bottlenecks in physical industries.

Location

London, UK

Why this role is remarkable

• Join a world-class team featuring former unicorn founding engineers and talent from X, Google, Amazon, and Yandex in a high-trust, high-autonomy environment.
• The company is backed by an oversubscribed $4.5M seed round from legendary investors including Coinbase, Reddit, Klarna, and Spotify, providing a strong runway for growth.
• Experience true ownership by embedding with users in industries like aerospace and healthcare to build mobile-first tools that let physical-world work move at software speed.

What you will do

• Ship production-grade features from day one, owning the entire lifecycle from initial customer specification and UX polish to final deployment.
• Develop sophisticated offline-first mobile workflows using React Native and TypeScript, integrating native Swift/Kotlin modules for camera and sensors when necessary.
• Integrate advanced AI-powered features, including LLMs and agents, directly into mobile workflows to streamline messy real-world field processes for industrial workers.

The ideal candidate

• Proven experience shipping cross-platform apps with React Native and TypeScript, with the technical depth to drop into native iOS and Android codebases.
• Strong background in building offline-first applications that manage local persistence, conflict resolution, and reliable data synchronization in environments with unreliable connectivity.
• Entrepreneurial mindset, ideally with early-stage or founder experience, and a willingness to work directly with non-technical domain experts to define product requirements.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Forward Deployed Engineer

Salary

Not Disclosed

Company Description

Well-funded enterprise AI software platform

Job Description

You will embed with enterprise customers to bridge the gap between complex business challenges and software solutions. Using a platform that enables natural language software creation, you will prototype and ship production-grade tools. This high-impact role requires building across diverse tech stacks and translating front-line customer needs into core product features.

Location

London, UK

Why this role is remarkable

• Join an elite team founded by industry veterans with deep expertise in solving the most complex enterprise data and software problems.
• Backed by top-tier global venture capital firms with significant funding to redefine how enterprise-grade software is built and deployed.
• High-impact position in a small, high-performing team where your work directly shapes the company's direction and core product roadmap.

What you will do

• Embed directly with enterprise customers to understand challenges and rapidly prototype custom solutions across various diverse technology stacks.
• Translate front-line customer patterns and requirements back into the core platform to drive product development and large-scale scalability.
• Deploy production-ready, secure, and compliant software that integrates seamlessly with existing enterprise infrastructure and complex data environments.

The ideal candidate

• Strong software engineering background with the ability to write high-quality code and adapt quickly to unfamiliar or legacy technologies.
• Comfortable with 50-75% travel to customer sites, demonstrating extreme resourcefulness and the ability to thrive in ambiguous environments.
• Proven ability to communicate effectively with both technical and non-technical stakeholders to solve complex, real-world enterprise software problems.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Director of Product

Salary

$230k-$290k + Equity

Company Description

Well-funded enterprise automation platform

Job Description

As Director of Product, you will spearhead a high-growth business unit combining hardware, software, and agentic AI to transform physical customer experiences. You will own the full product lifecycle, from strategy and pricing to large-scale enterprise deployments, orchestrating cross-functional teams to automate complex operations for global brands at massive scale.

Location

New York, USA

Why this role is remarkable

• Own a high-impact, cross-functional business line that bridges the gap between hardware, enterprise software, and agentic AI.
• Operate within a well-funded, high-growth scaleup backed by top-tier VCs and recognized for innovation in physical-world automation.
• Lead massive, multi-million-dollar programs for global Fortune 500 brands, overseeing fleet-scale deployments across thousands of international locations.

What you will do

• Define the long-term strategy and roadmap for a product suite involving hardware units, embedded payments, and AI-driven autonomous workflows.
• Direct commercial strategy, including pricing, packaging, and unit economics, while managing complex certification and procurement cycles for enterprise customers.
• Collaborate with engineering, hardware, and operations teams to transition human-intensive processes into seamless, automated, and autonomous digital experiences.

The ideal candidate

• Proven track record with over 10 years in product leadership, including significant experience owning a product line with substantial enterprise revenue.
• Deep expertise in managing large-scale physical deployments, such as connected devices, point-of-sale systems, or complex hardware-software integrations.
• Exceptional executive communication skills with the ability to navigate multi-stakeholder enterprise deals and build systems that scale to thousands of sites.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Director of Enterprise Sales (Financial Service)

Salary

Not Disclosed

Company Description

Nexus FrontierTech Ltd (also registered as NEXUS FRONTIER TECH LIMITED) is a Deloitte Top 50 fastest-growing UK company providing generative AI platforms for Tier-1 financial institutions. Their flagship "Nexus Capacity Unit" automates regulated back-office workloads, replacing legacy BPO with governed, audit-ready AI throughput for global leaders like MUFG, HSBC, and UBS.

Job Description

As Director of Enterprise Sales, you will lead the commercial charge for Nexus FrontierTech Ltd (also registered as NEXUS FRONTIER TECH LIMITED), selling category-defining AI-led BPO alternatives to Tier-1 banks. You will target $15M in new ACV by replacing high-cost human workloads with governed AI throughput, scaling boutique deployments into massive standing operational budget lines.

Location

London, UK

Why this role is remarkable

• Sell a category-defining commercial model (Nexus Capacity Unit) that re-prices the $1.2T global financial back-office market instead of typical SaaS seat-licenses.
• Leverage existing enterprise-grade traction with live production deployments at major institutions including MUFG, HSBC, and UBS, ensuring you sell proven solutions rather than slideware.
• Join a Deloitte Top 50 fastest-growing company at a pivotal scaling point, reporting directly to the CEO with meaningful equity and a clear path to managing a $100M+ portfolio.

What you will do

• Originate and close $15M in new ACV across 3-5 Tier-1 logos during Year 1, building a qualified pipeline of $60M+ ACV across CIB and Markets divisions.
• Navigate complex operating committee approvals within Tier-1 banks to establish Nexus as a standing alternative to legacy BPO providers like Infosys and Cognizant.
• Build and lead an elite enterprise sales pod consisting of Account Executives, Sales Engineers, and Customer Success Operators to scale regional beachheads.

The ideal candidate

• Proven track record with 8+ years selling complex managed services, BPO, or AI platforms into Tier-1 banks, personally closing deals exceeding $5M ACV.
• Expert-level understanding of bank middle/back-office economics, including cost-per-FTE, regulatory constraints, and model risk approval pathways for regulated financial environments.
• Executive gravitas with the ability to co-author commercial consumption-based structures alongside MDs and C-suite stakeholders at the world's largest financial institutions.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

AI Product Engineer

Salary

Not Disclosed

Company Description

Brain Co is a $55M Series A applied AI startup co-founded by Jared Kushner and Elad Gil, backed by Andrej Karpathy and Patrick Collison. They build frontier AI applications for the world’s most critical institutions, including national governments and healthcare systems, to modernize essential infrastructure and services.

Job Description

As an AI Product Engineer, you will own the end-to-end product lifecycle, from collaborating with government ministers to shipping production-ready AI solutions. You'll build scalable full-stack applications that automate complex workflows in construction, energy, and healthcare, delivering massive real-world impact. This role combines software engineering, product management, and direct customer engagement in a fast-paced environment.

Location

San Francisco, USA

Why this role is remarkable

• Work directly with sovereign governments and national health systems to deploy AI that unlocks hundreds of millions in value.
• Join a world-class team of 70+ AI experts from Tesla, Google DeepMind, and NVIDIA, backed by a $55M Series A.
• Own products from zero to one, wearing multiple hats across engineering, product strategy, and high-level stakeholder management.

What you will do

• Design and deploy advanced AI-integrated software solutions using React, TypeScript, and microservices architecture for critical industrial and government sectors.
• Partner directly with key stakeholders, including government ministers and hospital administrators, to define product specs and solve complex operational challenges.
• Build and scale robust data pipelines and cloud infrastructure to ensure 99% reliability for essential services like energy production and healthcare.

The ideal candidate

• Has 4+ years of full-stack experience with React/TypeScript and backend technologies like Node, Python, or Go, preferably from a founding or early-stage background.
• Demonstrates a strong foundation in software design and algorithms, ideally with a degree from a top-tier Computer Science program.
• Thrives in ambiguous, high-stakes environments and is eager to own problems end-to-end while working directly with customers to deliver tangible impact.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

===

Job Title

Brand Manager

Salary

£25k–£42k

Company Description

LeverBrands is a rapidly growing London-based agency co-founded by serial entrepreneur Chris Donnelly (Verb Brands) that helps world-class entrepreneurs, CEOs, and founders scale their personal brands across LinkedIn, newsletters, and Instagram.

Job Description

As a Brand Manager at LeverBrands, you will own comprehensive personal brand strategies for high-value founders and CEOs. You will lead a dedicated client pod, translating rough ideas into high-impact content that resonates with millions. This is a high-growth role for strategic thinkers who want to shape the future of the creator economy.

Location

London, UK

Why this role is remarkable

• Work directly with world-class founders and CEOs, managing their digital presence and scaling their personal influence to millions of followers.
• Join a high-growth agency founded by Chris Donnelly, who previously built Verb Brands into a leading luxury agency, and Nader Alnajjar, who scaled Chris's brand to millions.
• Benefit from a culture that prioritizes team growth over CVs, offering clear career paths from Brand Manager to Account Director within a supportive, ambitious environment.

What you will do

• Own and execute end-to-end content strategies for a portfolio of clients, ensuring every LinkedIn post and newsletter matches their unique voice and strategic goals.
• Lead a dedicated client pod consisting of a Content Writer and Designer, providing clear briefs and maintaining exceptional quality standards for all deliverables.
• Act as a trusted strategic partner, conducting regular strategy calls and using performance data to proactively pivot approaches and maximize client growth.

The ideal candidate

• 1–3+ years of experience with a proven track record of growing LinkedIn accounts and managing social media strategy for high-profile individuals.
• Exceptional writing and voice-matching skills, with the ability to transform complex ideas into compelling narratives that drive engagement and authority.
• A proactive, analytical thinker who thrives in fast-paced agency environments and can manage multiple client relationships with calm, strategic precision.

===

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer (Mid / Senior / Staff / Principal)

Salary

£80k-£160k + Equity

Company Description

Electric Twin is a $14M seed-stage London startup backed by Atomico and Marc Andreessen, building a behavioral simulation platform. Founded by the UK Prime Minister's former Chief Data Advisor and a senior military commander, they create "digital twins" of real populations to help organizations test decisions with 95% accuracy in minutes.

Job Description

Join a high-caliber team of 17 building the future of behavioral simulation. As a Software Engineer at Electric Twin, you will own complex systems from design to deployment, orchestrating foundation models and data pipelines. You’ll tackle real engineering challenges—like system design and reliability—while shaping a product used by major organizations like The Times to predict human behavior.

Location

London, UK

Why this role is remarkable

• Work at the frontier of AI and behavioral science with a $14M-funded team backed by world-class investors like Atomico, LocalGlobe, and Marc Andreessen.
• Tackle deep systems problems, including population-scale simulations and orchestration of foundation models, with a platform already delivering 10,000x faster results than traditional research.
• Enjoy a high-trust, low-ego environment in Soho with meaningful equity, 16% total pension matching, and a culture that genuinely prioritizes work-life balance and unlimited leave.

What you will do

• Design and build the services, data models, and APIs that power sophisticated behavioral simulation workflows using Python, FastAPI, and TypeScript.
• Take full ownership of product capabilities, collaborating closely with data scientists to turn research-validated simulations into robust, customer-facing product features.
• Shape the engineering culture and technical direction by deciding trade-offs between speed and rigor and ensuring systems are reliable, reusable, and trustworthy.

The ideal candidate

• Demonstrates a strong track record of end-to-end ownership, having shipped meaningful products and lived with the consequences of technical trade-offs across any modern stack.
• Possesses excellent judgment under uncertainty, with the ability to reason clearly about speed versus polish and iterate quickly based on real customer feedback.
• Brings proficiency or a strong willingness to learn our stack (Python, TypeScript, React, GCP), focusing on engineering fundamentals and system design rather than specific framework mastery.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Mid-market Account Executive

Salary

Not Disclosed

Company Description

Greptile is a $30M Series A AI startup backed by Benchmark and Y Combinator building autonomous code validation agents that review over a billion lines of code monthly for thousands of engineering teams.

Job Description

As a Mid-market Account Executive at Greptile, you will drive the expansion of an AI code reviewer used by over 9,000 teams. Having already scaled to 8-figure ARR with a lean team, you will now own the full sales cycle, define the GTM playbook, and collaborate directly with founders to scale the organization.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-growth company that scaled from $0 to 8-figure ARR with just two GTM hires, offering a rare opportunity to build a sales organization from the ground up.
• Work at the cutting edge of AI with a product that reviews over a billion lines of code monthly for customers ranging from YC startups to global finance and defense firms.
• Backed by $30M in funding from elite investors including Benchmark, Paul Graham, and Y Combinator, providing both massive stability and explosive growth potential.

What you will do

• Own the end-to-end sales cycle for mid-market software organizations, from initial prospecting and technical demonstrations to closing complex, multi-stakeholder deals.
• Partner directly with the founders and engineering teams to translate customer insights into product features and help define pricing, expansion strategy, and outbound playbooks.
• Develop deep technical expertise in AI-driven code review to effectively engage with engineering leaders and explain complex integrations, APIs, and LLM-based evaluation processes.

The ideal candidate

• You have 2+ years of experience as a closing AE in B2B SaaS with a strong foundation in prospecting and a proven record of exceeding sales quotas.
• You possess strong technical fluency and have experience selling developer tools, infrastructure, or security products to sophisticated engineering and economic buyers.
• You thrive in the ambiguity of early-stage (Series A to C) environments and have the builder instinct to create structure and playbooks where none currently exist.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Founding Engineer (£85k + Equity) at VC-backed AI PropTech startup

Job Title

Founding Engineer

Salary

£85k + Equity

Company Description

VC-backed AI PropTech startup

Job Description

You will lead the architectural development of an AI-driven agency model, replacing traditional manual workflows with autonomous agents. As a founding member, you will own everything from feature specification to production-grade deployment, tackling hard problems in LLM integration and operational automation to redefine how the global property market functions from the ground up.

Location

London, UK

Why this role is remarkable

• Join a founding team backed by top-tier European venture incubators and founders of global tech giants.
• Take a front-row seat in building the "last ever real estate agency" by owning the tech and the service.
• Significant equity stake in a high-growth environment with a clear path to US-based seed expansion.

What you will do

• Build and deploy production-grade agentic systems and RAG pipelines using Python and TypeScript.
• Drive architectural decisions and product strategy from initial concept to real-world operational impact.
• Maintain high-speed shipping cycles, deploying code to production within your first week of joining.

The ideal candidate

• Proven builder with 2+ years of experience shipping fast, production-grade code in startup environments.
• AI-native engineer proficient in Python/FastAPI and TypeScript/React with experience in LLM workflows.
• High-agency problem solver with a track record of taking full ownership of complex technical products.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Commercial Co-Founder

Salary

12% Equity

Company Description

Nuba rewards is a SEIS-backed London fintech building the resident loyalty layer for the UK's £120B annual rental market, led by a founding team with an 8-figure exit background.

Job Description

Join Nuba rewards as a Commercial Co-Founder to transform the UK's £120B annual rental market. You will lead the property industry strategy, leveraging your deep BTR network to onboard institutional operators. This is a high-impact, equity-first role for a builder ready to own commercial growth for a category-defining fintech platform.

Location

London, UK

Why this role is remarkable

• Earn a 12% equity stake in a SEIS-secured venture processing £150K in beta transactions, founded by a multi-exit team including the former CEO of LUX Rewards.
• Address the UK's largest unrewarded expenditure—£120B in annual rent—by building the definitive loyalty and engagement infrastructure for the residential real estate sector.
• Operate as a peer to institutional leaders at firms like Greystar and Legal & General, establishing Nuba rewards as the essential resident relationship layer.

What you will do

• Execute the property-side go-to-market strategy by identifying and closing high-value partnerships with major UK Build-to-Rent (BTR) operators and institutional landlords.
• Translate complex fintech and loyalty capabilities into a compelling commercial value proposition that focuses on resident retention, portfolio performance, and Net Operating Income.
• Manage the entire commercial lifecycle from initial door-opening via your existing network to contract execution and long-term strategic relationship management.

The ideal candidate

• Possesses senior leadership experience (Director level or higher) within a major UK BTR operator or has successfully managed a P&L for a large-scale property business.
• Brings an established "warm rolodex" of institutional property operator contacts, enabling immediate peer-to-peer engagement without the need for cold introductions.
• Demonstrates a proven track record of personally closing significant commercial deals and exhibits the gritty, builder mentality required to scale an early-stage startup.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Sr. Product Designer

Salary

$190k-$350k + Equity

Company Description

VC-backed enterprise AI startup

Job Description

As the founding Senior Product Designer, you will shape how enterprises interact with autonomous AI agents. You will own the design process end-to-end, from establishing core design systems to shipping high-impact features. Working directly with founders, you’ll transform complex operational workflows into intuitive, high-quality product experiences that redefine workplace efficiency.

Location

San Francisco, USA

Why this role is remarkable

• Founding designer impact with the autonomy to set the visual and UX standards for a generational AI product.
• Join a well-funded startup backed by top-tier VCs and an impressive list of market-leading enterprise customers.
• Exceptional total compensation package including meaningful equity with QSBS eligibility and high-end benefits.

What you will do

• Establish and evolve the core design system and component architecture to ensure product consistency.
• Collaborate directly with founders and customers to translate complex enterprise workflows into simple, elegant interfaces.
• Own design end-to-end, spanning product features, brand identity, and executive presentation materials.

The ideal candidate

• Possesses over 6 years of product design experience, ideally within fast-paced, early-stage startup environments.
• Demonstrates an exceptionally high bar for craft with full mastery of Figma and complex system design.
• Thrives in ambiguous settings and enjoys leading the entire product lifecycle from concept to shipment.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Account Manager

Salary

£110k + £70k Commission

Company Description

V7 is a $33M Series A AI platform backed by Radical Ventures and Temasek, building the infrastructure layer for enterprise AI workflows. Their latest product, V7 Go, enables leading financial institutions and private equity firms to deploy custom AI agents that process complex documents with transparent, verifiable logic.

Job Description

You will own and expand a $3M book of business for V7 Go, our fastest-growing product line focused on the finance vertical. Managing relationships with sophisticated private equity firms and asset managers, you'll identify high-value AI automation opportunities, drive 160% NRR growth, and architect expansion strategies that transform how global financial services operate.

Location

London, UK

Why this role is remarkable

• Take ownership of a high-growth $3M portfolio within a product line that has achieved 160% NRR in its first year.
• Join a $33M Series A leader backed by top-tier investors like Radical Ventures and the architects of Transformers and Gemini.
• Operate at the cutting edge of enterprise AI, helping the world's most sophisticated financial firms deploy verifiable AI agents.

What you will do

• Manage and expand an established book of business consisting of top-tier private equity firms, asset managers, and private markets teams.
• Drive commercial growth by identifying new AI automation workflows and negotiating complex expansion deals and renewals.
• Collaborate directly with product and engineering teams to align the V7 Go roadmap with the evolving needs of financial enterprise clients.

The ideal candidate

• Holds 4-5+ years of B2B SaaS account management experience, preferably within high-growth VC or PE-backed environments.
• Possesses a deep understanding of the financial services sector, specifically private equity, asset management, or private markets workflows.
• Demonstrates a proven track record of growing enterprise accounts through consultative selling and a strong technical grasp of AI/ML software.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Title:
Senior React Native Engineer at Known - AI-powered matchmaking startup

Job Title

Senior React Native Engineer

Salary

Not Disclosed

Company Description

Known - AI-powered matchmaking startup backed by Forerunner Ventures

Job Description

As a Senior React Native Engineer, you will own the entire mobile surface area of a voice-first AI product. You'll solve complex audio engineering challenges and craft premium, native-feel interactions that benchmark against Apple-grade quality. Joining an elite team from Uber and Cash App, you'll apply general intelligence to revolutionize human connection.

Location

San Francisco, USA

Why this role is remarkable

• Work on a genuinely novel voice-first interaction paradigm where users engage in 27-minute average conversations with AI agents.
• Join a high-growth startup backed by top-tier investors including Forerunner Ventures (Decagon, Oura), NFX, and Pear VC as they approach Series A.
• High-autonomy environment in Cow Hollow, SF, collaborating with an elite engineering team from Uber, Afterpay, and Cash App.

What you will do

• Own the full mobile surface including voice interaction flows, matching UX, and real-time state management.
• Solve complex audio engineering problems such as streaming, silence detection, and graceful degradation for voice AI.
• Collaborate deeply with design to translate high-fidelity intent into fluid animations and gesture-responsive interfaces.

The ideal candidate

• Extensive experience shipping high-quality React Native consumer products where mobile craft and performance were existential to retention.
• Deep technical background in audio, voice, or real-time media features like WebRTC, recording, and streaming playback.
• Proven track record as an early engineer (employee 1-30) at growth-stage companies like Clubhouse, Discord, or Tinder.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Back End Engineer

Salary

Not Disclosed

Company Description

Thought Machine is a London-based fintech that has raised over £500m to modernize global banking infrastructure with its cloud-native core platform, Vault. Backed by JPMorgan Chase, Temasek, and Molten Ventures, they are ridding the world's largest financial institutions of legacy technology through high-performance engineering and scalable cloud technology.

Job Description

Join the Vault team to design and build performant microservices that power global banks like Lloyds and Standard Chartered. You will work in a fast-paced monorepo environment, delivering production-ready Python and Go code. This role combines deep backend engineering with client-facing scoping to translate complex requirements into scalable, cloud-native financial solutions.

Location

London, UK

Why this role is remarkable

• Work on Vault, a world-class cloud-native core banking platform powering institutions like JPMorgan Chase and Standard Chartered.
• Join a highly successful fintech that has raised £500m+ and is recognized by the Financial Times as a UK Best Employer for 2026.
• Engage in a high-caliber engineering culture using a monorepo with continuous deployment, focusing on technical excellence and production-ready code.

What you will do

• Design, implement, and develop scalable microservices using Python or Golang within a sophisticated cloud-native architecture.
• Manage and debug complex deployments from testing environments through to production, ensuring system performance and reliability.
• Interface directly with clients to scope deliverables, translate requirements into trackable tickets, and ensure feature coherence across engineering teams.

The ideal candidate

• Possesses 3-7 years of backend engineering experience with a strong proficiency in either Python or Golang for production services.
• Has a proven track record of developing automated unit and integration tests as an integral part of the development lifecycle.
• Demonstrates experience with cloud providers like AWS, orchestration tools such as Kubernetes, and designing scalable microservice or client/server architectures.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Engineer (AI Agents)

Salary

$180K - $300K + Equity

Company Description

Pylon Labs, Inc. is a $51M Series B startup backed by a16z and BCV, building an all-in-one B2B post-sales support platform. Leveraging conversational data and intelligence, they help over 1,300 companies like Linear and Cognition manage operations in real-time, earning a spot on the prestigious Enterprise Tech 30 list.

Job Description

Join Pylon Labs, Inc. to architect the future of AI-driven customer support. You will build and scale the next generation of AI features, directly impacting how over 1,300 leading tech companies manage their post-sales workflows. This high-impact role involves rapid iteration, ownership of complex technical challenges, and shipping code in a high-performance, engineer-led environment.

Location

San Francisco, USA

Why this role is remarkable

• Join a $51M Series B company backed by top-tier investors like a16z, BCV, and General Catalyst while they scale rapidly from a position of strength.
• Work on cutting-edge AI agent technology used by industry leaders like Cognition (makers of Devin) and Linear to automate complex support workflows.
• Collaborate with a world-class technical team of senior engineers hailing from premier technology companies including Samsara, Affinity, and Airbnb.

What you will do

• Build and deploy the next generation of AI features at Pylon Labs, Inc., rapidly iterating based on direct customer feedback and performance metrics.
• Improve the underlying quality, performance, and reliability of AI agents and intelligent features within the core support and customer success platform.
• Take full ownership of technical projects, managing end-to-end delivery from initial architecture to final shipment in a high-autonomy, low-meeting environment.

The ideal candidate

• Demonstrates strong engineering fundamentals with professional experience in React, Golang, GraphQL, and AWS to build and maintain scalable enterprise software.
• Thrives in a high-productivity culture where shipping code, autonomous project management, and attention to detail are the primary drivers of success.
• Is based in or willing to relocate to San Francisco to work in-person with a growing team of over 90 talented professionals.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Founding AI/ML Research Engineer

Salary

Not Disclosed + 0.30%-1.20% Equity

Company Description

Generalcatalyst.com is a Y Combinator W26-backed startup developing advanced AI agents that operate computers just like humans to eliminate repetitive manual workflows for enterprise teams.

Job Description

As a founding AI/ML Research Engineer at Generalcatalyst.com, you will bridge the gap between cutting-edge research and production systems. You'll build autonomous agents that reason, plan, and execute complex workflows across GUI and legacy systems. This is a high-impact role working directly with founders to define the future of enterprise automation.

Location

San Francisco, USA

Why this role is remarkable

• Secure a ground-floor opportunity with 0.30%-1.20% equity in a YC W26 company with strong investor backing.
• Work directly with founders from IIT Delhi, CMU AI research, and McKinsey to shape the core technology from day one.
• Bridge the gap between elite AI research and production by shipping systems that automate workflows at 10x speed.

What you will do

• Research and design multi-agent coordination strategies including context management, memory architectures, and resource utilization.
• Develop robust reasoning pipelines such as chain-of-thought and reflexion agents that remain reliable under distribution shift.
• Implement visual reasoning systems using Vision-Language Models (VLMs) for advanced GUI understanding and screen interpretation.

The ideal candidate

• Recent PhD or Master’s graduate from a top-tier program like Stanford, MIT, or CMU with a track record in AI/ML.
• Proven research background with publications at top venues such as NeurIPS, ICML, ICLR, ACL, or CVPR.
• Engineering proficiency in Python, PyTorch, and agentic orchestration frameworks like LangChain, LangGraph, or AutoGen.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Product Engineer

Salary

Not Disclosed

Company Description

Levels Tech is a post-Series A London startup acquiring established estate management businesses to revolutionize the industry through AI-powered automation and agentic workflows.

Job Description

You will own significant features end-to-end for Levels Tech, building AI-first tools that automate property management workflows. Working deeply with React, TypeScript, and LLM outputs, you'll drive technical direction for a product already generating solid ARR, transitioning from manual admin tasks to sophisticated, AI-driven customer connections and document automation.

Location

London, UK

Why this role is remarkable

• Work on a product with immediate product-market fit and real revenue from day one through the company's unique "Buy & Build" acquisition model.
• Influence the core architecture of an AI-first company where LLMs and agents are central to the product, not just bolted-on features.
• Enjoy the high-velocity ownership of a small startup team backed by the stability of a post-Series A funding round and existing ARR.

What you will do

• Design and ship production-ready UIs using React and TypeScript that interface directly with complex LLM outputs and agentic workflows.
• Own features from technical design through to production, acting as a bridge between business needs and technical implementation.
• Architect scalable front-end systems that allow property managers to automate document-heavy workflows and handle resident queries via AI.

The ideal candidate

• Expert-level proficiency in React and TypeScript with over 5 years of experience shipping production-grade UIs at scale.
• Proven track record of building and shaping AI products, moving beyond simple API consumption to deep architectural integration of AI features.
• Background in high-growth startups where you have demonstrated a "product-first" mindset and the ability to deliver value amidst ambiguity.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Senior Backend Software Engineer

Salary

£100k–£140k + Equity

Company Description

Fleek is a ~$50M Series B startup backed by a16z and Y Combinator, building the AI-native infrastructure for the $350B global secondhand fashion market.

Job Description

You will join the Growth squad to own the core ecommerce journey, building backend systems for discovery, payments, and seller tools. Reporting to the CTO, you'll integrate the proprietary FleekSort AI classification engine into a marketplace handling millions of items. This role is about digitizing a broken, manual supply chain at global scale.

Location

London, UK

Why this role is remarkable

• Work on a genuinely novel technical challenge by integrating FleekSort, a custom AI model (not a GPT wrapper) that digitizes opaque secondhand inventory.
• Join a hyper-growth company tripling year-on-year with ~$50M in funding from top-tier investors like a16z, Y Combinator, and HV Capital.
• Deliver massive environmental impact by building systems that have already saved 9 million items from landfills and are scaling to serve thousands of global retailers.

What you will do

• Architect and own the end-to-end ecommerce journey, including item discovery, search, multi-currency payment systems, and credit infrastructure.
• Design and scale backend services to handle over 1 million unique items per month, connecting AI grading engines to real-time marketplace workflows.
• Collaborate in a senior product squad to translate complex international logistics and supply chain challenges into reliable, high-performance software.

The ideal candidate

• Has 6-10 years of professional backend experience, ideally using Node.js and TypeScript, with a proven track record of shipping high-traffic production systems.
• Possesses a product engineering mindset from a consumer-facing marketplace or fintech background, focusing on commercial outcomes rather than just infrastructure.
• Thrives in early-stage, fast-paced environments (Seed to Series B) and utilizes AI tools like Cursor or Copilot as a force multiplier in their workflow.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Software Architect

Salary

Not Disclosed

Company Description

Well-funded property management SaaS platform

Job Description

As a Software Architect, you will lead the evolution of a complex distributed ecosystem, bridging the gap between high-level business strategy and technical execution. You will define architectural standards, mentor senior engineers, and ensure the platform scales effectively while maintaining high performance and security across a growing suite of enterprise services.

Location

London, UK

Why this role is remarkable

• High-impact leadership position overseeing the technical direction of a market-leading platform during a period of significant scale.
• Backed by top-tier VCs, providing a stable yet fast-paced environment with substantial resources for technical innovation.
• Opportunity to solve complex distributed systems challenges within a mission-critical industry that affects millions of users.

What you will do

• Design and oversee the implementation of scalable, secure, and resilient microservices architectures across the entire product suite.
• Partner with product and engineering leadership to translate long-term business goals into robust technical roadmaps and architectural blueprints.
• Foster a culture of technical excellence by mentoring engineering teams and establishing best practices for code quality and system design.

The ideal candidate

• Extensive experience as a Software Architect or Principal Engineer building and scaling high-traffic enterprise SaaS applications.
• Deep expertise in modern distributed systems, cloud-native infrastructure, and designing complex API integrations at scale.
• Proven ability to influence cross-functional stakeholders and lead technical decision-making processes across multiple engineering squads.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE

She will pick the best candidates from Jack's network.

The next step is to speak to Jack.

Job Title

Mid-Market Account Executive

Salary

Not Disclosed

Company Description

LlamaIndex is a $27.5M Series A startup headquartered in San Francisco, building the essential document infrastructure for AI agents. Led by Jerry Liu and backed by Norwest and Greylock, LlamaIndex powers the connection between LLMs and data with an open-source framework seeing over 25 million monthly downloads across a global developer community.

Job Description

As a Mid-Market Account Executive, you will build the commercial engine from the ground up, owning the full sales cycle for companies under 500 employees. You'll leverage massive open-source momentum and 300,000+ active users to convert technical interest into enterprise partnerships, helping high-growth teams adopt LlamaCloud for their AI agent workflows.

Location

San Francisco, USA

Why this role is remarkable

• Sell a product with massive organic pull; LlamaIndex is one of the most recognized names in AI infrastructure with 25M+ monthly downloads.
• Join a high-growth Series A team of 44 people where you'll define the mid-market sales playbook alongside the founding leadership.
• Work at the epicenter of the LLM space, representing a brand that developers already trust and use daily for complex data orchestration.

What you will do

• Own the end-to-end sales cycle from outbound prospecting and OSS signal conversion to technical discovery, negotiation, and closing.
• Navigate multi-threaded deals involving engineers and data teams to uncover business pain and technical requirements for AI adoption.
• Partner with Solutions Engineers to execute focused Proofs of Concept (POCs) that demonstrate the value of LlamaIndex’s enterprise platform.

The ideal candidate

• 2–5 years of full-cycle SaaS sales experience with a consistent record of exceeding quotas and building their own pipeline.
• Proven track record selling to technical personas like engineers and data scientists, ideally within the AI/ML or developer tools space.
• Thrives in early-stage environments, possessing the "AI-first" mindset to use modern tools for research, outreach, and pipeline management.

Who are Jack & Jill?

Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.

And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.

How does this work?

• Jack's an AI agent for job searching and career coaching. He works for you.
• Jill is the AI recruiter working for the company. She recruits from Jack's network.
• If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.

We never post fake jobs

This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.

Give Jack a spin! You could land this role. If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.

#LI-JANDJLIVE