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

The next step is to speak to Jack.

Job Title

Product Engineer (all levels)

Salary

Not Disclosed + Equity

Company Description

Nous is a fast-scaling London startup achieving 20x YoY growth while building the ultimate agent for household admin. Backed by significant funding, they automate switching, insurance, and subscriptions to save users money and time, managing over £200m in household spend with an industry-leading NPS of +70.

Job Description

You will join as a Product Engineer to build tools that absorb real-world complexity for millions of UK households. Working directly with the CTO in London, you will own outcomes end-to-end—developing both core user products and the internal "multipliers" that allow the entire company to scale efficiently.

Location

London, UK

Why this role is remarkable

• Join one of the fastest-scaling UK startups with 20x YoY growth and a product experience rated higher than Apple (NPS +70).
• Work in a high-leverage environment where small teams ship entire product lines, like open banking subscription management, in under three months.
• Collaborate directly with the CTO on agentic engineering, utilizing AI harnesses and custom tooling to solve messy, real-world household problems.

What you will do

• Own product features end-to-end, from fuzzy problem definitions and initial planning to shipping code and analyzing performance metrics.
• Build internal "multipliers"—the shared tooling and safe surfaces that enable non-engineers to ship and scale service lines without breaking systems.
• Develop complex, long-running workflows using TypeScript and Temporal to automate household processes like insurance discovery and purchase journeys.

The ideal candidate

• Has at least 2 years of professional experience with a modern full-stack TypeScript environment, including React, Postgres, and Node.js.
• Possesses a PM mindset, caring deeply about UX, copy, and user flow alongside technical correctness and system scalability.
• Thrives in an office-first, high-context culture in London, preferring ownership and agency over rigidly defined tickets and management layers.

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

£140k + Equity

Company Description

AgentBay is a London-based startup building the trust layer for agentic commerce. Founded by alumni from Stripe, Plaid, and Amazon, they are developing a first-of-its-kind risk engine and payment infrastructure to protect consumers and merchants as AI agents begin to handle autonomous transactions and financial decisions.

Job Description

As the Founding Engineer/CTO at AgentBay, you will build the technical foundation for autonomous agentic commerce. You’ll develop a novel risk engine quantifying "alignment risk" using ML and LLMs, integrate complex payment flows, and design end-user UX. This is a hands-on role defining a new category alongside seasoned fintech and big-tech founders.

Location

London, UK

Why this role is remarkable

• Join as a founding team member with a direct line to strategy and the chance to define a brand-new category in the AI and fintech space.
• Work alongside founders with elite pedigrees from Amazon, Google Pay, Stripe, and Plaid who have scaled massive systems and launched successful products.
• Solve "alignment risk," one of the most critical hurdles for the future of agent-led commerce, building infrastructure that doesn't exist anywhere else today.

What you will do

• Architect and build a first-of-its-kind risk engine from scratch using a blend of traditional supervised learning and LLM-as-a-judge methodologies.
• Develop and embed secure risk harnesses within agentic commerce protocols and payment flows, partnering with ecosystem players to integrate bleeding-edge technology.
• Lead the end-to-end product engineering cycle, from backend machine learning models and payment orchestration to crafting high-craftsmanship, "calm tech" user experiences.

The ideal candidate

• A senior-level engineer who has shipped complex production software end-to-end, ideally with experience taking a product from 0-to-1 in a fast-paced environment.
• Deep technical expertise in either machine learning infrastructure or payment systems, with the architectural maturity to make sharp decisions under conditions of high uncertainty.
• A high-agency, low-ego builder who values product velocity and craftsmanship, possesses the UK right to work, and enjoys a high-energy, collaborative startup culture.

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

£100k-£120k + Equity

Company Description

Iridium Credit is a London-based fintech, backed by a multi-million-dollar seed round from top US VCs and Entrepreneurs First, automating the $7 trillion US invoice financing market. Founded by veterans from Morgan Stanley and Microsoft, the company builds AI agents that verify invoices for bank-owned lenders processing $100M+ monthly.

Job Description

As the first founding engineer at Iridium Credit, you will build and own production AI agents across browser, voice, and email. Working directly with founders from Morgan Stanley and Microsoft, you'll solve complex verification challenges for bank-owned lenders, architecting reliable systems that process hundreds of millions in monthly invoice value for small businesses.

Location

London, UK

Why this role is remarkable

• Work on a $7 trillion problem building "self-healing" AI agents and voice systems that navigate complex B2B dialpads and portals for bank-owned lenders.
• Backed by a multi-million-dollar seed round from two major US VCs and Entrepreneurs First, with live contracts already processing $100M+ in monthly volume.
• Transition with the company from London to New York in the coming months, with full US visa sponsorship and relocation costs covered by the company.

What you will do

• Design and deploy sub-agent architectures that handle browser automation, CAPTCHAs, 2FA, and real-time voice interactions with accounts payable teams using Python.
• Own features end-to-end as employee number four, making critical architectural decisions across the backend, frontend, and infrastructure to ensure bank-grade system reliability.
• Collaborate directly with lenders and founders to understand commercial context and bridge the gap between technical builds and complex banking compliance requirements.

The ideal candidate

• Strong engineering generalist with deep Python experience and a track record of building reliable systems that work against the messiness of the real-world web.
• Experience with browser automation (Playwright/Puppeteer), AI agents, or production ML, particularly systems requiring high reliability when operating within changing external environments.
• High-growth mindset with the appetite for early-stage startup intensity, ready to step into an engineering lead role within the next twelve months as the team expands.

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 / Lead Engineer

Salary

Not Disclosed

Company Description

Avior Technology, Inc. is a San Francisco-based fintech building a stablecoin-native neobank to provide global founders and freelancers with multi-currency accounts, cards, and treasury yield while abstracting away crypto complexity.

Job Description

Join Avior Technology, Inc. as our second full-time engineer to lead the development of a stablecoin-native neobank. Working directly with the CTO, you will own the architecture of our money-movement systems, integrating third-party financial APIs and scaling our backend core to support a global user base ahead of our upcoming September launch.

Location

San Francisco, USA

Why this role is remarkable

• Architect the core of a stablecoin-native neobank from the ground up, owning critical infrastructure and technical strategy rather than just closing tickets.
• Join a fast-moving founding team as the second full-time engineer, receiving meaningful equity and directly shaping the product direction alongside the CTO.
• Work with a high-standard TypeScript stack while solving complex reconciliation and idempotency challenges at the intersection of traditional finance and crypto rails.

What you will do

• Orchestrate specialist providers like Privy, Due, and Rain to build a seamless onboarding journey and robust multi-currency account infrastructure.
• Develop and maintain a double-entry ledger system with idempotent money movement, signature-verified webhooks, and real-time reconciliation against on-chain wallet states.
• Lead the engineering efforts for upcoming feature releases including card issuing, treasury yield optimization, FX conversion, and the launch of a React Native iOS application.

The ideal candidate

• Senior-level engineer with a proven track record in high-stakes environments where correctness is paramount, such as payments, banking, or financial exchanges.
• Deep expertise in TypeScript/Node.js and experience integrating complex third-party financial APIs, with a strong understanding of webhook ordering and idempotency.
• Comfortable working across the full stack and eager to take on leadership responsibilities, including code reviews and major architectural decision-making.

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 Engineer

Salary

Not Disclosed

Company Description

Ufonia is a London-based healthtech company backed by Octopus Ventures building autonomous clinical AI agents that have already completed over 200,000 NHS consultations.

Job Description

You will join a mission-driven team to build the future of AI-delivered healthcare. As a Product Engineer, you'll take ownership of clinical needs, designing and shipping regulated solutions across the stack. From refining Dora's conversational AI to EHR integrations, you’ll solve complex problems that directly improve patient access and clinical capacity.

Location

London, UK

Why this role is remarkable

• Join a high-traction healthtech leader whose AI agent, Dora, is already UKCA-marked and validated in The Lancet's eClinicalMedicine.
• Backed by Octopus Ventures and key opinion leading investors, Ufonia is scaling internationally with active expansion into the US healthcare market.
• Work in a small, high-agency team where engineers operate above their job titles and use agentic AI tools to accelerate their own development.

What you will do

• Own end-to-end clinical outcomes, from identifying user needs with clinicians to shipping production-ready code across frontend, backend, and AI systems.
• Build and refine Dora’s conversational behaviors and tools, making clinical agents faster to deploy and more effective at managing routine consultations.
• Integrate platform capabilities with Electronic Health Records (EHRs) to turn complex clinical data into useful, dependable healthcare products for patients and providers.

The ideal candidate

• An excellent engineer with strong product judgment who can navigate a mixed stack including Python, TypeScript, Go, and React.
• Proven experience shipping products from zero-to-one, demonstrating the ability to turn ambiguous requirements into clear, high-impact technical solutions.
• Deeply curious about healthcare delivery and comfortable working fluently with LLMs and agentic tools while maintaining accountability for regulated safety standards.

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

Health and Safety Consultant

Salary

Not Disclosed

Company Description

Clean Food Group is a pioneering biotech firm producing sustainable palm oil alternatives through yeast fermentation. Backed by investors like Clean Growth Fund and Agronomics, they operate a 1M-litre facility in Liverpool—the world’s largest of its kind—aiming to reduce greenhouse gas emissions by 95% compared to traditional tropical oils.

Job Description

Clean Food Group seeks an experienced Health and Safety Consultant to oversee their 1M-litre fermentation facility in Liverpool. You will lead process safety, regulatory compliance, and site-wide safety culture as the company scales to commercial production. This is a unique opportunity to shape the safety framework for a world-first sustainable industrial biotechnology site.

Location

Liverpool, UK

Why this role is remarkable

• Own health and safety at the world’s largest yeast-derived oil manufacturing facility, transitioning a pilot-scale operation to full commercial production.
• Join a high-impact mission to eliminate palm oil-driven deforestation with a technology that reduces greenhouse gas emissions by over 95%.
• Gain rare experience at the intersection of industrial chemical manufacturing and cutting-edge biotechnology, supported by elite investors like Döhler Group and Agronomics.

What you will do

• Develop and manage comprehensive process safety frameworks including COSHH, DSEAR, and COMAH awareness for large-scale fermentation and chemical handling.
• Establish site-wide safety protocols, including permit-to-work systems, machinery safety, and confined space procedures for the 1M-litre Knowsley facility.
• Lead regulatory compliance and build a robust safety culture from the ground up, serving as the primary liaison for HSE inspections and audits.

The ideal candidate

• Proven hands-on health and safety experience within industrial chemical manufacturing or complex process environments at production scale.
• Strong technical knowledge of chemical hazards, safe systems of work (SSOW), and industrial safety regulations such as COSHH and DSEAR.
• Professional certifications including a NEBOSH Diploma and IOSH membership are preferred, alongside the ability to operate at a senior manager or director level.

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 Engineer

Salary

Not Disclosed

Company Description

Romeai is a $7M seed-stage London startup, backed by General Catalyst and the founders of Dropbox and Perplexity, building an AI orchestration layer for global supply chains. Founded by former YC founders, the team is creating agents that coordinate work across massive physical networks for enterprise clients like VW.

Job Description

Romeai is hiring a Product Engineer in London to build the application layer for AI-driven global supply chain coordination. Working directly with former YC founders, you will own features end-to-end, from UX to backend APIs. You will bridge the gap between core AI technology and daily workflows for massive enterprise clients.

Location

London, UK

Why this role is remarkable

• Join a lean team of seven with outsized impact, including former YC founders, as they open their first London office and approach Series A funding.
• Work on a high-traction product with direct C-suite contracts at global giants like VW, solving critical coordination problems in the physical economy.
• Backed by world-class investors including General Catalyst and the founders of Dropbox, Perplexity, and Toast, providing both stability and top-tier mentorship.

What you will do

• Build and own the application layer end-to-end, including high-performance product surfaces, intuitive UX, and robust integrations that power global logistics.
• Translate complex AI agent capabilities into seamless user experiences that manage workflows across suppliers, factories, and logistics partners.
• Ship high-quality code rapidly in a fast-paced environment, working directly with customers to iterate on features and solve real-world supply chain fragility.

The ideal candidate

• 3-10 years of experience shipping real products at fast-growing startups, with a proven track record of end-to-end technical ownership.
• Strong computer science fundamentals and full-stack proficiency across modern web technologies, prioritizing systems-level understanding over framework expertise.
• Thrives in high-ambiguity environments and possesses the product-mindedness to bridge technical possibilities with user needs effectively.

===

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

Business Manager

Salary

£40k-£60k + Equity

Company Description

Scaling B2B marketplace startup

Job Description

Support a fast-paced CEO in driving business execution and maintaining operational momentum. This high-agency role focuses on turning leadership decisions into tangible outcomes by coordinating cross-functional workstreams and ensuring relentless follow-through. You will eliminate bottlenecks and manage the company's operating rhythm to ensure key priorities move forward without constant intervention.

Location

London, UK

Why this role is remarkable

• Work directly alongside the CEO at a critical scaling stage, gaining unparalleled insight into how a high-growth business operates.
• Join a well-funded startup backed by top-tier investors with a proven model and significant market opportunity in the B2B space.
• Enjoy a high-impact, low-admin execution role where you own the operating rhythm rather than managing diaries or travel.

What you will do

• Run the CEO's operating rhythm by capturing decisions, assigning owners, and relentlessly following up to ensure deadlines are met.
• Coordinate complex cross-functional projects, surfacing potential blockers early and building processes where clarity is currently missing.
• Prepare critical materials for leadership meetings, board presentations, and investor conversations to keep the business aligned.

The ideal candidate

• Proven experience in a structured, high-performance environment like management consultancy, banking, or PMO, with a focus on project delivery.
• Obsessive attention to detail and follow-through, with a natural inclination to impose structure on ambiguous or messy situations.
• High mental horsepower and commercial awareness, capable of keeping pace with a fast-moving founder across strategic and operational topics.

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

Insights Analyst

Salary

£35-£45k + Equity

Company Description

Electric Twin is a London-based behavioural simulation startup backed by Atomico, LocalGlobe, and Marc Andreessen. Founded by former Downing Street advisors, the company uses synthetic populations to let organisations test decisions 10,000x faster than traditional methods, with research from the LSE validating their 95% accuracy across 155 countries.

Job Description

As an Insights Analyst, you will bridge the gap between Electric Twin's AI platform and enterprise clients. You’ll configure synthetic populations, translate complex data into strategic recommendations, and work directly with founders to scale behavioral insights. This high-impact role is perfect for a quantitative professional looking to transition into the AI product space.

Location

London, UK

Why this role is remarkable

• Join an elite team led by the UK Prime Minister's former Chief Data Advisor and a senior military commander, solving the "thin slice of evidence" problem in decision-making.
• Work with a platform validated by LSE research as 10,000x faster than traditional methods, backed by top-tier investors including Atomico and Marc Andreessen.
• Receive meaningful early-stage equity and a clear growth path in a fast-moving environment where you help shape product priorities based on real-world implementation patterns.

What you will do

• Design and onboard custom datasets to build synthetic audiences that mirror real-world populations for high-stakes client evaluations and strategic simulations.
• Lead technical client engagements, translating complex synthetic methodologies into trustworthy, actionable insights for senior executives and C-suite stakeholders during high-stakes decision cycles.
• Partner with the product team to identify root causes in data pipelines and develop new training documentation that scales the platform’s adoption across organizations.

The ideal candidate

• Holds a quantitative degree in a field like Mathematics, Physics, or Psychology and possesses 1-3 years of experience in data analysis, market research, or consulting.
• Demonstrates proficiency in Python and a strong ability to master new AI/ML platforms while identifying technical issues within sophisticated data evaluation pipelines.
• Exhibits excellent communication skills, capable of independently managing sophisticated customer relationships and translating complex technical concepts for non-technical leadership in fast-moving 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

Customer Success Lead

Salary

£75k+ + Equity

Company Description

Passion Labs is a London-based applied AI research lab building custom ML solutions for enterprises like the BBC and FT. Founded by serial entrepreneurs from OTO and Pyrsos AI, the 12-person team of PhD-level researchers creates advanced AI tools across industries including music discovery, agriculture, and structural engineering.

Job Description

You will own the entire client book at Passion Labs, driving adoption and commercial expansion for custom AI/ML products. Bridging the gap between a PhD-heavy technical team and non-technical enterprise buyers, you’ll oversee delivery, manage NRR targets, and build the customer success function from the ground up for their expanding AI portfolio.

Location

London, UK

Why this role is remarkable

• Join a PhD-led AI research laboratory working on complex, real-world applications for global brands like the BBC and Financial Times.
• Lead the transition from a consultancy model to a scalable product-led growth strategy, building the customer success function entirely from scratch.
• Work directly with serial entrepreneurs and top-tier ML researchers in a high-impact, pre-seed environment with significant equity upside and influence.

What you will do

• Own the full customer lifecycle for all active accounts, acting as the primary commercial and strategic partner for enterprise clients.
• Identify and close expansion opportunities including upsells and new use cases to drive net revenue retention across the portfolio.
• Coordinate between technical teams and non-technical stakeholders to ensure seamless project delivery and successful adoption of complex AI tools.

The ideal candidate

• Has 8+ years of experience in customer success or account management at B2B tech companies, with a proven history of scaling revenue.
• Possesses strong AI fluency, capable of translating deep technical ML capabilities into business value for C-suite stakeholders and non-technical buyers.
• Demonstrates exceptional project management skills and a builder's mindset, thriving in early-stage environments where processes need to be designed, not just followed.

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

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

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

Software Engineer

Salary

£50k-£100k+ + Equity

Company Description

Opfyx Ltd is a venture-backed London and New York startup founded in 2023, building a modern AI-enabled operations platform to replace legacy infrastructure for the world's largest airports, airlines, and ground handlers.

Job Description

Join a small, high-impact engineering team at Opfyx Ltd to architect mission-critical systems that replace decades-old aviation infrastructure. You will build and scale distributed architectures across the full stack, working directly on products used in live airport environments to optimize global air travel for billions of passengers.

Location

London, UK

Why this role is remarkable

• Shape the future of global aviation by replacing fragmented legacy systems with a modern, AI-enabled platform used by major international players.
• Join a well-capitalized, venture-backed startup in its early stages where you will work directly with a CTO who is an Apache Arrow and DataFusion contributor.
• Enjoy high ownership and visibility in a small team of three engineers, ensuring your architectural decisions have an immediate, massive impact on real-world operations.

What you will do

• Design, build, and operate highly available, mission-critical software for live aviation environments using Rust and Flutter.
• Collaborate with product stakeholders to develop distributed and federated architectures that support complex, real-world operational workflows.
• Improve reliability, performance, and user experience across the Opfyx AIR platform while helping to shape engineering practices as the team scales.

The ideal candidate

• A self-starter with strong technical instincts across the full stack and the ability to own projects end-to-end in a fast-moving environment.
• Experience or a strong willingness to master a high-performance stack including Rust, Flutter/Dart, gRPC, Arrow, and Postgres.
• A user-first mindset with the technical caliber to build scalable systems for an industry that moves billions of people annually.

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

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

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

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

The next step is to speak to Jack.

Job Title

Founding Firmware Engineer

Salary

£80k-£120k + Equity

Company Description

Alpha Machines is a well-funded London-based hardware startup founded by repeat unicorn founders to build critical infrastructure for the physical AI economy. The company designs and manufactures advanced power electronics and propulsion systems for aerospace, defense, and robotics, leveraging its proprietary AlphaOS AI platform to re-industrialize Europe through vertically integrated manufacturing.

Job Description

As the first firmware hire, you will own the entire embedded software platform for Alpha Machines' propulsion systems. You'll architect the RTOS, hardware abstraction layer, and bootloaders while bridging the gap between Simulink control models and real-time execution. Your work ensures reliability and performance in safety-critical applications across aerospace and robotics.

Location

London, UK

Why this role is remarkable

• Join a high-pedigree founding team of repeat unicorn founders as the first embedded software hire, gaining massive ownership over the firmware architecture and stack.
• Work on mission-critical hardware where your code directly drives physical systems in aerospace and defense, contributing to the re-industrialization of Europe.
• Receive a significant founding-team equity stake in a well-funded startup building the fundamental infrastructure for the next generation of physical AI.

What you will do

• Architect and own the complete embedded firmware platform, including RTOS integration, hardware abstraction layers, and secure bootloaders for ARM Cortex-M targets.
• Implement deterministic communication stacks for CAN, DroneCAN, and SPI, ensuring high-reliability data transfer and fault tolerance for safety-critical drone applications.
• Develop the code generation toolchain using Embedded Coder to translate complex MATLAB/Simulink control models into high-performance, deployed embedded C/C++ firmware.

The ideal candidate

• Has 5+ years of experience building RTOS-based embedded platforms from hardware bring-up through production, with deep proficiency in ARM Cortex-M microcontrollers.
• Demonstrates expert-level mastery of embedded C/C++, interrupt-driven architectures, and peripheral driver development for resource-constrained environments.
• Possesses hands-on hardware expertise, including reading schematics and using oscilloscopes, combined with experience in model-based design toolchains like Simulink and Embedded Coder.

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

Founding Engineer

Salary

$150k-$250k + Equity

Company Description

Cascade is a pre-seed startup backed by a16z Speedrun that is transforming the $13T construction industry with an AI orchestration layer. Founded by former Google ML experts, the company has scaled from $0 to over $200K in contracted ARR within just three months of launching its predictive engine.

Job Description

As a Founding Engineer at Cascade, you will build the prediction engine that identifies multi-billion dollar construction opportunities. You’ll sit alongside the founders, shipping end-to-end features and leveraging LLMs to analyze billions of signals. This is a high-ownership role for a builder eager to define the tech stack and culture of a generational company.

Location

New York, USA

Why this role is remarkable

• Work at a high-growth startup backed by a16z Speedrun that achieved $201K ARR in its first three months of operation.
• Collaborate directly with founders Hannia Zia (Forbes 30 Under 30, ex-Google Search ML) and Joana Ferreira (ex-Google and Amazon engineer).
• Influence the physical world by building software used by the architects and builders behind major infrastructure like JFK, LaGuardia, and nuclear reactors.

What you will do

• Develop and refine the AI orchestration layer to predict major construction projects using non-obvious signals like demographic shifts and life events.
• Own the full product lifecycle from initial idea to production, shipping end-to-end features with extreme speed and autonomy.
• Shape the technical roadmap and company culture while sitting next to the founders in a collaborative, in-person environment.

The ideal candidate

• Possesses hands-on experience with LLMs and a strong desire to own the entire technical stack, including direct customer interactions.
• Demonstrates an entrepreneurial spirit, ideally having worked at an early-stage startup or having started their own company previously.
• Is based in New York and thrives in a fast-paced environment where shipping functional code is prioritized over perfecting unused 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.

Job Title

Staff Detection and Response Engineer

Salary

Not Disclosed

Company Description

Writer Inc. is a Series C enterprise AI platform building the secure infrastructure that transforms how the world works. With top-tier certifications like ISO 42001 and SOC 2 Type II, Writer Inc. protects high-value intellectual property and model deployments for global enterprises by integrating security into the core of the AI lifecycle.

Job Description

Defend cutting-edge AI systems from evolving threats as a Staff Detection and Response Engineer at Writer Inc. You will build sophisticated detection systems for prompt injection and data poisoning while creating automated response capabilities across GPU clusters. This role is pivotal in defining AI security engineering at a global scale for enterprise model deployments.

Location

San Francisco or Seattle, USA

Why this role is remarkable

• Work at the absolute forefront of AI security, defending high-value GPU clusters and distributed training environments against novel threats that don't exist in textbooks yet.
• Join a rapidly growing Series C enterprise AI platform that holds prestigious ISO 42001 and HIPAA certifications, ensuring security is a core product pillar and business differentiator.
• Define the future of automated response and detection-as-code in an environment where you protect model weights and training data for the world's largest companies.

What you will do

• Design and implement detection strategies for AI-specific threats including prompt injection, model extraction, and data poisoning across distributed infrastructure and model weights.
• Build automated response playbooks and orchestration workflows that contain threats without human intervention, reducing mean time to response from hours to minutes for compromised inference endpoints.
• Lead security incident response coordination across Cloud, AppSec, and AI Research teams during forensic investigations of training pipeline attacks or model manipulation attempts.

The ideal candidate

• Has 3-5+ years of experience in security operations or incident response, with a proven track record of securing high-performance computing, AI/ML infrastructure, or distributed systems at scale.
• Possesses strong programming skills in Python, KQL, or SPL to build custom detection logic and automate response workflows that operationalize security across cloud-native environments.
• Demonstrates deep expertise with SIEM platforms and forensic techniques, particularly in identifying novel attack patterns within complex distributed computing environments before they become incidents.

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

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

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

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

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 Customer Success (£90k-£110k + Equity) at Fast-growing digital health platform

Job Title

Head of Customer Success

Salary

£90k-£110k + Equity

Company Description

Fast-growing digital health platform

Job Description

You will lead the entire post-sales journey for the UK’s leading digital pharmacy network, unifying Customer Success, Account Management, and Onboarding into one high-performance function. Reporting to the CEO, you will build the infrastructure for health scoring and segmentation while personally managing strategic partnerships to drive retention and expansion revenue.

Location

London, UK

Why this role is remarkable

• Take full ownership of the CS playbook at a market-leading scaleup expanding internationally into new markets.
• Direct commercial accountability with a mandate to build and lead a high-impact team of six professionals.
• High-influence leadership role within a well-funded healthtech company that is fundamentally transforming patient care access.

What you will do

• Unify Customer Success, Key Account Management, and Onboarding into a single coordinated function with shared goals.
• Build and execute proactive customer journeys, health scoring, and win-back strategies to maximize renewal rates.
• Personally lead strategic quarterly business reviews and identify expansion opportunities with the company’s most valuable partners.

The ideal candidate

• 10+ years of Customer Success leadership experience, ideally within a B2B SaaS or healthtech marketplace environment.
• Proven track record of building CS operations from scratch, including segmentation frameworks, metrics, and playbooks.
• Strong commercial acumen with the ability to own revenue outcomes and performance-manage teams effectively.

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 eCommerce

Salary

£90k

Company Description

Airportr Technologies Limited is a Series A travel-tech company reimagining baggage logistics through a Baggage-as-a-Service platform. Partnering with global airlines like easyJet, Lufthansa, and Singapore Airlines, they turn travel complexity into digital simplicity, scaling rapidly across European markets to provide seamless, premium baggage services for modern travelers.

Job Description

As Head of eCommerce, you will own the end-to-end B2C booking funnel and growth engine. Reporting to the CEO, you will have full autonomy to audit the tech stack, optimize conversion through rigorous A/B testing, and scale direct-to-consumer revenue alongside expanding airline partnerships. This hands-on role balances high-level strategy with granular execution.

Location

London, UK

Why this role is remarkable

• Full autonomy to shape and own the entire B2C eCommerce function from the ground up at a Series A scale-up.
• High-impact visibility with a direct reporting line to the CEO, influencing the core product that powers global airline partnerships.
• Unique greenfield opportunity to build the direct-to-consumer growth engine as the company expands across European and international markets.

What you will do

• Architect and optimize the booking experience to drive high conversion rates across diverse European markets with localized digital journeys.
• Own the complete eCommerce stack, CRM strategies, and digital marketing spend, focusing on lifecycle automation to drive repeat bookings.
• Lead a structured, data-driven experimentation program to improve key metrics like bounce rates, CAC, and long-term customer lifetime value.

The ideal candidate

• Proven experience owning a transactional B2C funnel end-to-end, with a track record of driving significant improvements in checkout UX.
• Analytical leader fluent in funnel data, P&L management, and structured A/B testing within a fast-paced scale-up environment.
• Commercial operator who understands the nuances of the European travel market and can tailor product merchandising to different cultural audiences.

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

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

Forward Deployed Engineer

Salary

Not Disclosed + Equity

Company Description

VC-backed AI content automation platform

Job Description

Join a high-growth startup sitting at the intersection of product, engineering, and customer strategy. You will build sophisticated AI-powered workflows using LLMs and automation tools to solve complex growth challenges for market-leading brands. This role bridges the gap between shipping code and driving strategic outcomes, turning custom solutions into scalable product features.

Location

San Francisco or New York City, USA

Why this role is remarkable

• High-impact hybrid role sitting at the intersection of engineering, product innovation, and growth strategy.
• Backed by top-tier VCs with massive revenue growth and a product trusted by market-leading unicorns.
• Exceptionally high-autonomy environment where you ship in days and directly influence the core product roadmap.

What you will do

• Build and deploy sophisticated AI workflows using LLMs, prompt engineering, and retrieval-augmented generation.
• Partner with cross-functional teams to automate complex processes and develop novel customer-facing use cases.
• Analyze performance metrics and report strategic insights to the executive team to shape product direction.

The ideal candidate

• Proven background in Growth, Solutions Engineering, or BizOps at a high-growth technology startup.
• Hands-on experience building production-ready applications with LLMs and automation tools like Zapier.
• Analytical mindset with the ability to navigate Python/JavaScript and a drive to own end-to-end outcomes.

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

Member of Technical Staff, Infrastructure

Salary

$120K – $250K + Equity

Company Description

The Token Company is a $12M seed-stage startup backed by First Round Capital, NEA, and YC, building specialized machine learning models to compress LLM inputs. By identifying and removing unimportant data before it hits expensive models, they drastically reduce inference costs for high-scale enterprises and tech companies integrating LLMs into their production workflows.

Job Description

You will own the end-to-end cloud infrastructure for a high-performance compression API. This role involves building global, low-latency GPU ML inference systems that sit directly in the critical path of customer traffic. As a core member of a 5-person team, you will drive reliability, scalability, and cost-efficiency for a revolutionary AI product.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite 5-person team backed by $12M from top-tier investors like First Round Capital and founders of Dropbox, Slack, and Supercell.
• Solve critical infrastructure challenges for LLM efficiency, building the low-latency systems that enable enterprises to scale AI cost-effectively.
• Benefit from an unparalleled San Francisco living experience with provided housing, food, laundry, and cleaning services, plus full visa sponsorship.

What you will do

• Architect and manage global, high-throughput GPU inference infrastructure using AWS, Terraform, and Docker to ensure maximum performance and uptime.
• Own the entire infrastructure stack from initial deployment and CI/CD pipelines to long-term reliability and cost-efficiency research.
• Collaborate closely with research and product teams to integrate and scale compression models into a high-traffic production API.

The ideal candidate

• Demonstrated experience building and operating production-grade cloud infrastructure at scale using tools like AWS and Terraform.
• Strong background in managing containerized environments with Docker and establishing robust CI/CD pipelines for high-reliability systems.
• Proven ability to take end-to-end ownership of an infrastructure stack, ideally within a fast-paced startup or high-growth engineering 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 Backend Engineer

Salary

$130k–$180k + Equity

Company Description

Jarmin is a San Francisco-based YC F25 startup building AI employees for human-level roles, founded by an elite engineering team from Meta SuperIntelligence Labs, Apple, and AWS.

Job Description

As our first backend hire, you will architect the distributed systems and orchestration layer powering our AI agents. You'll own critical infrastructure from day one, transforming complex agent workflows into reliable, scalable business outcomes. This high-impact role involves building internal tools, hacking prototypes, and shaping the future of work alongside a world-class founding team.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite founding team from Meta SuperIntelligence Labs, Apple, and AWS at the ground floor of a YC F25 startup.
• Build the core orchestration layer for autonomous AI employees capable of replacing full human roles like ML engineers and paralegals.
• Secure a significant founding equity stake of 0.5–5% while solving some of the most complex distributed systems challenges in AI.

What you will do

• Design and scale the distributed infrastructure that schedules, executes, and monitors complex multi-agent workflows reliably at scale.
• Build the critical orchestration layer that enables AI agents to understand proprietary data and embed into existing business systems.
• Develop internal developer tools and rapid prototypes to accelerate the team's ability to iterate on new AI agent capabilities.

The ideal candidate

• You have deep professional experience building and operating complex backend architectures and distributed systems at scale.
• You are a relentless builder who ships code constantly, thrives in high-ownership environments, and maintains an exceptionally high quality bar.
• You are passionate about the future of AI agents and enjoy solving novel, ambiguous problems in an in-person, San Francisco-based culture.

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 TypeScript Engineer

Salary

$165,000 - $220,000 + Equity

Company Description

Outro Health is a mission-driven virtual care startup dedicated to helping people safely taper off antidepressants using the first neurobiology-based method. Led by world-leading expert Dr. Mark Horowitz, the company has established a first-of-its-kind clinical model with meaningful revenue and research partnerships with top health systems.

Job Description

Join Outro Health as engineer #2 to build software that enables patients to safely reduce medication. You’ll partner with the Head of Product to scale a complex clinical care model, moving between patient-facing React Native apps, AI-driven operations, and TypeScript clinical tools while ensuring a unified view of patient health data.

Location

New York, USA

Why this role is remarkable

• Ground-floor opportunity as the second engineer, doubling the technical team and directly influencing the foundational architecture of a category-defining health platform.
• Mission-driven work solving a massive public health challenge led by Dr. Mark Horowitz, the world’s leading expert in neurobiology-based medication tapering.
• High-autonomy environment where you’ll lean into AI tools like Claude and Cursor to maintain a small, high-leverage team with enormous product ownership.

What you will do

• Develop and scale clinical products, including custom clinician tools and AI agents that assist in monitoring patient responses to medication changes.
• Own the end-to-end lifecycle of patient-facing features across web and React Native mobile platforms, from initial design through deployment and clinical iteration.
• Build robust integrations with insurance and data platforms to streamline billing and enable research partnerships with leading universities and health systems.

The ideal candidate

• 3+ years of professional experience as a full-stack engineer with deep expertise in TypeScript, React, and Node.js (Next.js experience is a plus).
• Proven ability to ship products independently and turn ambiguous clinical workflows into clear software models, with a strong focus on data modeling and domain boundaries.
• Systems-minded builder who is excited about leveraging AI tools to accelerate development and has an interest in making complex healthcare systems intuitive for patients.

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

$150k-$250k + Equity

Company Description

High-growth applied AI startup

Job Description

As a Founding Software Engineer, you will design and build the core technical architecture for a new AI-native platform. You'll lead development across backend services, agentic workflows, and hardware integration, moving from ambiguous prototypes to reliable production systems. This is a ground-floor opportunity to shape both a physical-world product and a high-performance engineering culture.

Location

Palo Alto, USA

Why this role is remarkable

• Work at the frontier of applied AI, building products that interact with the physical world through connected devices and intelligent reasoning.
• Gain massive ownership as a founding team member, influencing every major technical decision and the long-term product roadmap from day one.
• Benefit from a well-capitalized environment led by serial founders with deep expertise in robotics, AI, and complex systems development.

What you will do

• Architect and implement core backend services, APIs, and data pipelines to support a complex, real-world AI platform.
• Integrate advanced AI models and agentic workflows that reason over context and maintain state across different environments.
• Collaborate with founders to translate customer needs into technical solutions while establishing best practices for observability and deployment.

The ideal candidate

• Possesses exceptional software engineering fundamentals and a track record of shipping complex, high-reliability production systems at scale.
• Demonstrates deep experience with modern programming languages like Python or TypeScript and familiarity with LLM infrastructure or retrieval systems.
• Thrives in fast-paced, ambiguous startup environments where they can take full ownership of loosely defined problems and technical challenges.

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

Brand & Marketing Director

Salary

Not Disclosed

Company Description

Go Ape is a nationally recognized outdoor leisure brand and employee-owned trust operating a diverse network of forest adventure locations across the UK, delivering high-quality, experience-led activities centered on challenge, connection, and time in nature.

Job Description

Lead Go Ape’s brand marketing function across national and local activity, overseeing campaign planning, content, PR, and paid acquisition. You will be the senior custodian of the brand, ensuring it remains distinctive and commercially effective while influencing product propositions to grow audience relevance and lifetime value across every customer touchpoint.

Location

Bury St. Edmunds, UK

Why this role is remarkable

• Shape the future of a beloved British brand as it transitions into a Trust-led, employee-ownership model, prioritizing long-term value and organizational sustainability.
• Join a business at a strategic inflection point where small improvements in brand clarity and creative effectiveness will unlock significant headroom for growth.
• Balance creative freedom with commercial impact, leading an in-house team of 12 to capture the emotional resonance of outdoor adventure for millions of customers.

What you will do

• Direct the national and local marketing strategy, balancing always-on activity with peak trading moments to ensure the brand remains culturally relevant year-round.
• Build a powerful in-house content engine across social, influencer, and earned media to translate physical adventures into shareable, high-impact customer narratives.
• Collaborate with the Executive team to influence product and proposition design, ensuring operational delivery remains tightly aligned with the brand promise and customer expectations.

The ideal candidate

• Proven senior brand leadership experience in a consumer-facing sector such as leisure, hospitality, or travel, with a track record of driving demand through creative excellence.
• Deep expertise in connecting organic content, PR, and social strategies with paid acquisition to build a cohesive, commercially grounded marketing ecosystem.
• Highly collaborative leader who can navigate multi-site operational complexities and challenge the status quo to maintain brand standards across diverse geographic locations.

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

$130K - $170K + Equity

Company Description

Arzana is a YC P26 startup building the autonomous operating system for US manufacturers, integrating AI agents into an ERP back-office to automate quoting, ordering, and logistics.

Job Description

As a Founding Engineer at Arzana, you will build agentic pipelines that automate critical manufacturing workflows. You’ll develop multi-step VLM and RAG systems to process terabytes of customer data, working directly with the founders to transform legacy industrial processes into high-efficiency software systems in an intense, high-growth, 75% MoM growth environment.

Location

San Francisco, USA

Why this role is remarkable

• Join a YC P26 company growing 75% month-over-month, tackling the massive technical challenge of automating US manufacturing at scale.
• Work on a cutting-edge stack involving VLM extraction from CAD files, gradient-walk prompt optimization, and complex multi-agent reasoning systems.
• Experience true founding-level ownership with the ability to influence product direction, architecture, and team culture from day one alongside the CEO.

What you will do

• Architect and deploy multi-step agentic pipelines using Python, Supabase, and GCP to automate complex back-office manufacturing tasks and external integrations.
• Develop RAG systems and VLM extraction tools to process TB-scale data, including CAD files, PDFs, and ERP exports for autonomous onboarding.
• Collaborate directly with the CEO to define the product roadmap and translate human business workflows into reliable chains of extraction and action.

The ideal candidate

• Strong engineering fundamentals with experience (or strong interest) in taking agent-based products or LLM workflows from prototype to production.
• Resilient, high-ownership mindset comfortable with a 70-80 hour work week and an intense 6-day in-person schedule in San Francisco.
• US Citizenship is strictly required due to ITAR compliance, ideally with a background in manufacturing environments or complex system integrations.

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

Hardware Engineering Lead

Salary

£100k + Equity

Company Description

AUAR is a Series A physical AI and robotics company backed by Planet A Ventures that is automating homebuilding. Based in a massive 11,000 sq ft London R&D facility, they deploy robotic MicroFactories to produce timber home structures on-site, revolutionizing construction through their proprietary MasterBuilder software and advanced industrial automation.

Job Description

As Hardware Engineering Lead, you will own the mechanical design and delivery of AUAR’s robotic MicroFactory. Working at the systems level, you’ll lead a team to evolve these machines from prototypes to robust, scalable production systems. You’ll design complex mechanisms, integrate industrial robots, and ensure reliable performance on real-world construction sites.

Location

London, UK

Why this role is remarkable

• You will design the very machines that build homes, tackling the global housing crisis by making construction faster, more affordable, and carbon-negative.
• AUAR is a high-growth Series A startup backed by Planet A Ventures, operating from a state-of-the-art 11,000 sq ft demonstration facility in London E17.
• This is a rare opportunity to lead hardware at the intersection of physical AI and robotics, seeing your designs move from CAD to real-world deployment.

What you will do

• Own the end-to-end mechanical design and product maturity of the MicroFactory, including complex mechanisms, end effectors, and production-grade tooling.
• Integrate industrial robots into reliable production systems, managing critical trade-offs between mechanical, electrical, pneumatic, and safety domains across the whole machine.
• Lead and mentor a hardware team while remaining hands-on in the workshop, driving CAD management practices and raising the standard for engineering execution.

The ideal candidate

• You have substantial experience designing complex automated machines and taking them from concept to high-volume working hardware in production environments.
• You possess deep expertise in mechanical design, including structures and actuated systems, with a strong understanding of how to design for real-world material tolerances.
• You are a systems thinker with a background in industrial automation or robotics who thrives in high-autonomy environments and stays close to the physical hardware.

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

£65k-£75k + Equity

Company Description

Fast-growing accounting-tech SaaS startup

Job Description

You will join as a core engineer responsible for building automation and AI features that eliminate manual financial workflows. Working directly with the CPTO, you will design scalable, dependable backend systems and contribute to product hypotheses. This is a high-impact role in a lean team where your code ships to customers rapidly.

Location

London, UK

Why this role is remarkable

• Join a category leader that recently passed a major revenue milestone and is doubling its headcount to accelerate growth.
• Enjoy high ownership and visibility as the fourth engineer in a technical team led by experienced repeat founders.
• Benefit from a culture of personal development with a dedicated budget and time for learning complex financial domains.

What you will do

• Develop and maintain core backend services using Spring Boot, Java/Kotlin, and Ruby on Rails.
• Collaborate across the business to translate user needs into pragmatic, well-tested technical solutions.
• Contribute to small frontend features in React to ensure seamless end-to-end product delivery.

The ideal candidate

• Proven experience as a backend engineer in a fast-paced startup environment with strong JVM or Rails skills.
• A pragmatic problem-solver who enjoys wearing multiple hats and building 80/20 solutions for rapid testing.
• Based in the UK and able to commute to Central London at least one day per week.

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

Chalkie is building the AI-enabled classroom of the future, scaling to £6m ARR in under 12 months as the fastest-growing AI edtech product in Europe.

Job Description

Join a high-output engineering team as the fourth hire to build tools helping 800,000+ teachers automate curriculum planning. You will spend 90% of your time building product features and 10% ideating with founders. This role requires a 0-to-1 builder mindset and a passion for transforming education through AI-powered software.

Location

Remote, UK

Why this role is remarkable

• Join as engineer #4 at Europe's fastest-growing AI edtech startup, which reached £6m ARR in less than a year.
• Directly impact the lives of over 800,000 teachers by building AI tools that eliminate burnout and automate resource creation.
• Work in a high-autonomy environment with 0-to-1 ownership, skipping top-down specs to shape the product roadmap alongside the founders.

What you will do

• Build and ship full-stack features using Next.js, TypeScript, and Laravel to serve a massive, rapidly growing user base.
• Collaborate daily with founders to ideate and prototype new AI-driven capabilities that transform how teachers manage their classrooms.
• Own the entire product lifecycle from initial concept to production deployment on Vercel and DigitalOcean infrastructure.

The ideal candidate

• Possesses 4+ years of professional full-stack experience and has successfully shipped products used by 1,000+ real-world users or enterprise clients.
• Demonstrates proven 0-to-1 builder DNA, thriving in fast-paced startup environments where rapid iteration and high-quality craft are essential.
• Is an AI enthusiast who leverages AI coding tools to accelerate development while focusing on building exceptional user-facing 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

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

Software Engineer

Salary

$130k-$180k + Equity

Company Description

Well-funded legal tech AI startup

Job Description

Join a high-performance team building the AI layer for the legal industry. You will own features end-to-end, from custom RAG pipelines to React-based interfaces. Working directly with founders from top tech companies, you will ship code daily and visit customers to shape a product that is already seeing massive revenue growth.

Location

New York, USA

Why this role is remarkable

• Work directly with founders and a high-caliber engineering team from elite backgrounds like Google, Jane Street, and Amazon.
• Join a company experiencing 10x revenue growth backed by top-tier VCs, providing both stability and high upside.
• High-impact environment where you ship daily and influence the product roadmap through direct interactions with global law firm clients.

What you will do

• Design and implement full-stack features using Go, React, TypeScript, and AWS serverless infrastructure.
• Build and optimize custom RAG pipelines and AI-driven workflows that automate complex billable time capture.
• Collaborate directly with customers to identify pain points, prioritize product requirements, and execute technical solutions autonomously.

The ideal candidate

• Holds a CS degree from a top-tier program and has 2-5 years of experience at a high-growth startup.
• Demonstrates strong product sense and the ability to own the entire development lifecycle without needing hand-offs.
• Possesses an interest in AI/ML systems and thrives in a fast-paced, in-person collaborative environment in New York City.

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

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:
Applied AI Engineer at Innovative AI simulation startup

Job Title

Applied AI Engineer

Salary

Not Disclosed

Company Description

Innovative AI simulation startup

Job Description

Join a pioneering team at the forefront of AI world generation, building large-scale systems for real-time 3D environment and game creation. You'll work on distributed multi-agent orchestration, data-efficient training, and inference optimization, enabling new frontiers in interactive experiences. This role offers the chance to own core generation and simulation stacks, impacting how engaging virtual worlds are made and monetized.

Location

San Francisco, USA

Why this role is remarkable

• Work at the intersection of applied AI and large-scale systems for world generation.
• Backed by top-tier VCs, driving innovation in the rapidly evolving AI and gaming sectors.
• Opportunity to own significant parts of the core generation and simulation stack, shaping the future of interactive content.

What you will do

• Develop and optimize world generation pipelines, focusing on data-efficient training and inference.
• Design and implement distributed multi-agent orchestration systems for coordinated world synthesis.
• Build reinforcement learning pipelines and agentic reasoning frameworks for adaptive game generation and emergent behavior.

The ideal candidate

• Possesses strong software fundamentals and can navigate between production systems and research.
• Has experience building or training large multimodal or agentic AI systems.
• Familiar with distributed training, data curation, or large-scale vision/3D pipelines.

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

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

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.

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

Business Development Representative

Salary

Not Disclosed + Equity

Company Description

Series B AI research lab

Job Description

As a Business Development Representative, you will drive the top-of-funnel strategy for a cutting-edge AI research lab. You'll build AI-native outbound workflows, qualify product-led signals, and represent the company at industry events. This role combines strategic prospecting with hands-on experimentation, allowing you to shape how developers and executives interact with innovative conversational AI technology.

Location

San Francisco, USA

Why this role is remarkable

• Build with the product you sell by using your own AI-generated persona for prospecting and outreach.
• Join a high-growth Series B startup backed by world-leading venture capital firms at a pivotal scaling point.
• Move beyond traditional sequencing by designing sophisticated, agentic outbound systems using modern automation tools.

What you will do

• Execute AI-native outbound prospecting across multiple channels including email, LinkedIn, and personalized video to target technical leaders.
• Identify and qualify high-intent signals from product-led growth data to build a robust pipeline of strategic opportunities.
• Represent the company at hackathons, conferences, and meetups to spark conversations with developers and GTM executives.

The ideal candidate

• Has 1-2 years of experience in sales or business development, preferably within an AI, dev-tool, or API-first environment.
• Is AI-native, regularly utilizing AI tools to automate workflows and possessing a deep curiosity for agentic sales systems.
• Demonstrates the ability to hold high-level technical and business conversations with both staff engineers and executive leadership.

===

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

Senior Software Engineer (Full Stack)

Salary

£80k–£100k + Equity

Company Description

Humaans is a $20M venture-backed London startup building the next-generation AI-powered infrastructure for the global workplace. Backed by Y Combinator and the founders of Slack, Figma, and Shopify, the company is redefining people operations with an agentic AI layer that automates workflows across HR, IT, Finance, and Operations.

Job Description

Join Humaans as a Senior Full Stack Engineer to build "Athena," an agentic AI layer automating people operations. Working directly with the founders in London, you will own features from ideation to launch across a modern TypeScript stack. Help us redefine how fast-growing companies like Poolside and Quantexa manage complex global workflows.

Location

London, UK

Why this role is remarkable

• Work on a highly differentiated AI platform that uses a structured workforce data model to make automation reliable for HR, IT, and Finance.
• Join a company backed by $20M from elite investors, including Y Combinator and the founders of Slack, Figma, and Shopify, in a category that is currently wide open.
• Enjoy a high-autonomy product culture where engineers influence the roadmap, collaborate with designers, and solve complex orchestration problems for high-growth global teams.

What you will do

• Build and ship end-to-end features using TypeScript, React, and Node.js while contributing to technical architecture and infrastructure on Kubernetes.
• Collaborate directly with the CEO and Head of Engineering to shape product definition, discover customer needs, and expand the third-party integration marketplace.
• Own the full software lifecycle, from scoping and technical planning to implementation, bug fixes, and supporting sales/marketing efforts.

The ideal candidate

• Extensive professional experience building full-stack web applications, ideally within a high-growth SaaS environment, with a deep appreciation for digital craftsmanship.
• Expert-level proficiency in TypeScript and Node.js, with the ability to navigate complex backend systems and frontend React components with ease.
• Proven track record of taking ownership of ambiguous problems and collaborating effectively with product teams to deliver tangible value to 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

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 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

Head of Marketing

Salary

£100k-£120k + Equity

Company Description

Octopus Ventures and Notion Capital-backed human performance startup building the category of stress intelligence

Job Description

You will own the end-to-end marketing function for a high-growth startup redefining stress as a performance advantage. Reporting to the CEO, you will lead category creation, demand generation, and product marketing to scale a science-validated platform already delivering 5x ROI for global enterprises like Arm and Cantor Fitzgerald.

Location

London, UK / US East Coast

Why this role is remarkable

• Create a brand-new category in "stress intelligence," backed by a scientific advisory board from Harvard and Stanford and high-profile investors like Arianna Huffington.
• Join a mission-driven leadership team with pedigree from Google and Deliveroo that genuinely prioritizes internal wellbeing as a core operational value.
• High-impact ownership of a validated product achieving 90% productivity improvement and 5x ROI across a blue-chip enterprise client base.

What you will do

• Define and execute the global marketing strategy and OKRs, managing a lean team to drive brand authority and a systematized inbound pipeline.
• Lead the product marketing and GTM strategy for AI-driven features, translating complex clinical research into compelling narratives for CHRO and CFO audiences.
• Build a high-authority brand presence through executive thought leadership, top-tier PR placements, and an international roundtable program for HR leaders.

The ideal candidate

• 8-14 years of marketing experience with a proven track record of building B2B SaaS marketing functions from the ground up in high-growth environments.
• Demonstrated expertise in category creation, with the ability to coin new market narratives and communicate comfortably using the language of clinical research.
• An AI-native demand generation expert who has owned pipeline targets and built the full-funnel collateral necessary to support enterprise sales cycles.

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 Backend Engineer

Salary

$290K-$400K + Equity

Company Description

Giga is a $61M Series A voice AI startup building superintelligent agents that handle complex enterprise customer workflows for leaders like DoorDash.

Job Description

As a Staff Backend Engineer, you will lead the technical architecture of Giga's real-time AI platform. This is a high-impact individual contributor role where you'll solve complex distributed systems problems, scale infrastructure to millions of requests, and set engineering standards. You'll drive high-stakes initiatives that define the future of enterprise automation and voice superintelligence.

Location

San Francisco, USA

Why this role is remarkable

• Join an elite, engineer-led team of 30 at a pivotal $61M Series A stage, working on generational voice AI technology already trusted by Fortune 500 companies.
• Enjoy massive technical ownership and a broad remit across APIs, data pipelines, and platform services with zero fundraising burden or management overhead.
• Experience a high-velocity environment where staff-level engineers are expected to ship production code and architect systems that scale to millions of daily interactions.

What you will do

• Architect and evolve the core agent infrastructure, making critical tradeoffs between speed, reliability, and complexity as the platform scales.
• Lead the most ambiguous and highest-stakes technical projects, turning vague requirements into robust, production-ready backend systems.
• Mentor the engineering team through hands-on collaboration, code reviews, and the development of high-standard design documentation and operational excellence.

The ideal candidate

• Brings 7+ years of backend experience with a track record of architecting distributed systems that scale through multiple orders of magnitude.
• Possesses deep expertise in Python (Django/FastAPI) and TypeScript (Node.js), with a strong grasp of AWS, Kubernetes, and Postgres infrastructure.
• Thrives in high-pace startup environments, demonstrating the ability to own technical strategy and solve hard 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

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

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

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

Software Engineer

Salary

$160k-$180k + Equity

Company Description

Reflow AI Inc. (DBA Wayside) is a seed-stage NYC startup with $1.3m ARR building AI-powered automation for Professional Employer Organizations (PEOs).

Job Description

Join Reflow AI Inc. (DBA Wayside) as the third software engineer to automate legacy PEO workflows using AI. As a founding team member, you will own features end-to-end using Next.js and TypeScript. You’ll work closely with customers to shape the product roadmap and build AI agents that transform payroll and compliance operations.

Location

New York City, USA

Why this role is remarkable

• Founding-stage opportunity as the 3rd engineer in a high-intensity startup that grew revenue 18x last year to $1.3M ARR.
• Massive individual ownership where you define architectural decisions and the roadmap while working directly with the founding team and customers.
• Build at the cutting edge of AI, deploying production-ready agents to automate complex workflows for multi-billion dollar legacy industries.

What you will do

• Ship backend and user-facing features end-to-end using Next.js and TypeScript, self-hosting on AWS to deliver a world-class product experience.
• Engage directly with customers to demo features, collect feedback, and support users to ensure the product meets real-world operational needs.
• Design and implement AI-enabled workflows for client support and payroll entry, contributing significantly to the core product roadmap and strategy.

The ideal candidate

• 3+ years of professional software development experience with deep proficiency in TypeScript and modern web development frameworks like Next.js.
• Exceptional work ethic and a desire for high-ownership positions in early-stage startups, with the ability to independently manage ambiguous tasks.
• Practical experience with cloud deployment on AWS and a strong interest or experience in building production-grade LLM-enabled systems.

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

Materials Engineer

Salary

£35k-£45k + Equity

Company Description

VC-backed biomaterials startup

Job Description

Support the development and scale-up of sustainable, bio-based polymers. You will oversee material trials across compounding, extrusion, and injection moulding while performing hands-on lab characterization and root cause analysis. This role bridges the gap between R&D and manufacturing, helping build in-house prototyping capabilities to replace conventional plastics with home-compostable alternatives.

Location

London, UK

Why this role is remarkable

• Join a mission-driven team replacing conventional plastics with innovative, home-compostable, bio-based polymers.
• High-autonomy role at a well-funded Series A startup backed by top-tier VCs and scaling fast.
• Unique combination of hands-on lab work, factory floor trials, and cross-functional prototyping for major consumer brands.

What you will do

• Orchestrate and oversee material trials at partner manufacturing sites across extrusion, injection moulding, and film processing.
• Design and execute lab-scale experiments using characterization techniques like DSC, rheology, and mechanical testing to optimize formulations.
• Troubleshoot processing defects and perform root cause analysis on material failures to ensure seamless production scale-up.

The ideal candidate

• Degree in Polymer Processing, Materials Science, or a related field with at least one year of industry experience.
• Proven hands-on experience with polymer processing equipment including compounding, extrusion, or injection moulding lines.
• Strong experimental design and data analysis skills, with a proactive approach to building structure and moving projects forward.

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 Clinical Partnerships Manager

Salary

Not Disclosed

Company Description

Well-funded healthtech startup

Job Description

Drive growth and transformation across healthcare providers by spearheading the adoption of innovative clinical platforms. You will manage high-level relationships with clinical stakeholders, bridging the gap between technology and patient care. This role is pivotal in scaling operations and modernizing legacy workflows within a fast-paced, mission-driven environment focused on efficiency.

Location

London, UK

Why this role is remarkable

• High-impact mission modernizing clinical workflows and improving patient care delivery at scale.
• Rapid growth trajectory within a well-funded startup backed by top-tier venture capital.
• Strategic influence over go-to-market strategy and the evolution of the clinical engagement model.

What you will do

• Develop and execute strategic account plans to drive platform adoption across healthcare provider networks.
• Build and maintain deep relationships with clinical leaders and administrative stakeholders to ensure successful implementation.
• Collaborate with product and engineering teams to translate clinical feedback into platform enhancements and features.

The ideal candidate

• Proven track record in healthcare sales or account management with experience navigating complex provider environments.
• Exceptional communication skills with the ability to build trust and credibility with clinical professionals and executives.
• Entrepreneurial mindset with the ability to thrive in a high-autonomy, fast-paced 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

Head of Marketing

Salary

Not Disclosed + Equity

Company Description

Platformed Ltd is a pre-Series A AI-native audit platform with ~$1m ARR, building a global presence through high-trust category creation for senior audit and compliance leaders.

Job Description

Join Platformed Ltd as our first Head of Marketing to build a world-class function from scratch. You will drive category creation in the AI audit space, focusing on executive engagement, community building, and thought leadership. This high-agency role involves shaping our market motion and establishing trust with senior leaders globally.

Location

London, UK

Why this role is remarkable

• Category-creation opportunity in the emerging AI-native audit sector, positioning Platformed Ltd as the industry's default platform for mid-tier and challenger firms.
• Direct access to founders in a lean, 16-person team, allowing you to own the entire marketing strategy and build the function from zero-to-one.
• A relationship-driven GTM strategy that prioritizes high-quality executive interactions, curated events, and deep community building over traditional marketing tactics.

What you will do

• Develop and execute a comprehensive marketing strategy covering brand, editorial content, and community-led growth to build credibility with Heads of Audit and CIOs.
• Organize and lead curated executive events and industry gatherings to foster trust and influence within a concentrated global market of senior decision-makers.
• Harness AI tools instinctively to accelerate marketing workflows, while personalizing high-leverage content that establishes Platformed Ltd as an inevitable force in the audit industry.

The ideal candidate

• Proven experience as a first marketing hire or senior leader (No. 2) in a seed or Series A B2B startup, preferably within fintech, RegTech, or professional services.
• Exceptional editorial and brand instincts with the ability to communicate complex concepts clearly to non-marketing founders and senior enterprise stakeholders.
• A track record of building meaningful industry communities or followings, balancing strategic "big-picture" thinking with hands-on execution in a fast-paced 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

Machine Learning Research Scientist

Salary

Not Disclosed

Company Description

Well-funded AI materials discovery startup

Job Description

As a Machine Learning Research Scientist, you will drive the core discovery engine of an autonomous laboratory. You'll develop novel ML architectures, including GNNs and foundation models, to bridge the gap between simulation and real-world physical experiments. This role offers the unique opportunity to see your research directly accelerate scientific discovery and materials innovation.

Location

London, UK

Why this role is remarkable

• You will work at the intersection of frontier AI and physical labs, creating a closed-loop system for autonomous scientific discovery.
• The company is backed by top-tier VCs and led by world-renowned experts from elite industry labs and prestigious universities.
• Your work will have direct real-world impact by solving fundamental bottlenecks in materials science for EVs, robotics, and clean energy.

What you will do

• Formulate and prototype novel ML architectures like foundation models and GNNs tailored for complex material representations and physics simulations.
• Design active learning and optimization algorithms to autonomously decide which physical experiments the lab should run to maximize discovery.
• Tackle challenges in representation learning using sparse, high-dimensional data generated from real-world physical experiments to sharpen model predictions.

The ideal candidate

• Holds a PhD in Computer Science, Machine Learning, Physics, or a related field with a strong record of publishing novel research.
• Possesses hands-on expertise in PyTorch or JAX developing modern architectures such as generative models, Bayesian optimization, or foundation models.
• Demonstrates experience applying machine learning to scientific domains or simulations with a deep curiosity for accelerating discovery through autonomous systems.

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 Business Development Representative

Salary

Not Disclosed

Company Description

VC-backed AI platform

Job Description

You will drive pipeline growth for a market-leading AI infrastructure provider. This high-impact role involves targeting enterprise and mid-market accounts globally, positioning a differentiated API solution to both technical and commercial stakeholders. You’ll partner with account executives to convert high-quality opportunities in a fast-scaling, data-driven sales environment.

Location

London, UK

Why this role is remarkable

• Join a high-growth scale-up operating at the leading edge of machine learning and voice technology.
• Well-funded company backed by top-tier VCs with a globally recognized, developer-first product.
• Significant career trajectory into senior commercial or leadership roles as the organization expands its global footprint.

What you will do

• Execute multi-channel outbound prospecting strategies to build a robust pipeline across global territories.
• Qualify leads and manage complex sales cycles involving senior technical and business stakeholders.
• Utilize advanced sales-tech and AI tools to research accounts and deliver highly personalized outreach.

The ideal candidate

• Proven track record of exceeding sales targets within a B2B SaaS or technical infrastructure environment.
• Experience selling complex products like APIs, developer tools, or AI platforms to technical buyers.
• Methodical, data-driven approach to territory management with strong coaching and development potential.

===

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

Salary

£45k–£55k + Commission

Company Description

Healthera.co.uk is the UK's leading digital pharmacy platform, currently powering over 1,700 pharmacies and connecting more than a million patients to essential healthcare services through a modern, standard-setting interface.

Job Description

As an Account Executive at Healthera.co.uk, you will spearhead the digital transformation of the UK pharmacy market. You'll own the full sales cycle—from aggressive outbound prospecting and cold calling to conducting product demos and closing deals. This mission-driven role focuses on replacing outdated systems with a platform that improves patient outcomes.

Location

London, UK

Why this role is remarkable

• Join the UK's leading digital pharmacy platform already serving over 1,700 pharmacies and a million patients nationwide.
• Transition from an SDR/BDR role or a junior AE position into a high-impact, full-cycle closing role with massive ownership.
• Sell a product that delivers genuine social impact by helping pharmacies serve patients more efficiently during a massive industry shift.

What you will do

• Execute high-volume outbound sales activity, including cold calling pharmacy owners to build a robust and consistent pipeline.
• Lead comprehensive product demonstrations that showcase how the platform solves critical manual process bottlenecks and improves service delivery.
• Navigate the entire sales cycle from initial contact to closing deals, ensuring a seamless handoff to the customer success team.

The ideal candidate

• Possesses 2-3 years of outbound B2B sales experience with a proven track record of consistently exceeding performance targets.
• Demonstrates a "hunter" mentality with the resilience and skill required to build a sales pipeline entirely from scratch.
• Brings previous experience in SaaS sales, ideally within the healthcare or pharmacy sectors, to hit the ground running in this fast-paced 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 Information Security Officer

Salary

£65k-£85k + Equity

Company Description

Definely is a Series B LegalTech company backed by Microsoft, Google, and Octopus Ventures. Founded by former Freshfields lawyers, they build AI-powered contract review tools used by over 150 elite firms globally, including Magic Circle leaders like A&O Shearman and Slaughter and May, to streamline complex legal workflows.

Job Description

As Senior Information Security Officer at Definely, you will own the company’s security posture and compliance programs. You’ll lead ISO 27001 and SOC 2 audits, manage risk assessments, and secure AI-driven product features. This pivotal role combines governance with hands-on IT operations to safeguard sensitive data for world-leading legal enterprises.

Location

London, UK

Why this role is remarkable

• Shape the security strategy for a high-growth LegalTech company recently backed by a Series B funding round from Microsoft, Google, and Octopus Ventures.
• Impact global legal giants like Samsung and IKEA by ensuring the security of AI-driven tools used for critical contract negotiations.
• Enjoy a high-impact, hybrid role that blends strategic governance with tactical IT operations, offering direct influence over the company's scaling security infrastructure.

What you will do

• Own and evolve Definely’s Information Security Management System (ISMS), leading readiness for ISO 27001, SOC 2 Type II, and ISO/IEC 42001 certifications.
• Embed secure SDLC practices and perform threat modelling for AI/LLM-enabled products, working closely with engineering to safeguard product design.
• Manage day-to-day IT operations, including device management and onboarding, while leading company-wide incident response plans and vendor security reviews.

The ideal candidate

• Proven experience managing ISO 27001 and SOC 2 certifications within a SaaS or product-led environment, ideally using compliance automation tools like Drata.
• Technical expertise in cloud security (Azure or AWS), identity management (SSO/IAM), and securing AI-based systems.
• Strong background in both security governance and hands-on IT support, with relevant certifications such as CISSP, CISM, or ISO 27001 Lead Auditor.

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 Software Engineer

Salary

Not Disclosed

Company Description

Tuza is a $7M-funded London AI fintech backed by Northzone and Connect Ventures that builds AI agents to automate high-stakes banking workflows.

Job Description

Join a high-impact team in Shoreditch automating manual processes for global banks. You will own features end-to-end, building scalable architectures with TypeScript and agentic frameworks like LangChain. As an early engineer, you'll shape the core platform that orchestrates AI agents, customers, and humans to replace legacy banking bottlenecks.

Location

London, UK

Why this role is remarkable

• Join a seed-stage startup backed by Northzone and Connect Ventures, the early investors behind global fintech giants like Klarna and Spotify.
• Build at the cutting edge of agentic AI, using frameworks like LangChain and Temporal to automate a $100B manual banking industry.
• Operate within a high-caliber team of ~10 people in Shoreditch, offering significant equity and direct influence over the product roadmap.

What you will do

• Architect and build the core banking platform using a modern stack including React, TypeScript, GraphQL, Prisma, and Temporal for workflow orchestration.
• Design and deploy sophisticated AI agents using frameworks like LangChain or LlamaIndex to automate complex, regulated banking workflows end-to-end.
• Collaborate directly with the CTO and product teams to spike proof-of-concepts and ship production features that reduce manual labor by up to 90%.

The ideal candidate

• Has 4+ years of professional software engineering experience with a strong individual contributor track record and a bias for shipping production code.
• Possesses advanced full-stack expertise in TypeScript and experience building scalable, maintainable system architectures within high-growth VC-backed startup environments.
• Brings hands-on experience working with agentic frameworks or production-grade LLM features to solve real-world business logic and automation challenges.

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

$125k-$175k + Equity

Company Description

Reacher is a YC S25-backed platform and the #1 TikTok Shop partner helping global brands like Under Armour and Logitech scale affiliate marketing. Having crossed seven figures in ARR, they are backed by the Pioneer Fund, Rebel Fund, and founders of Reddit and Eight Sleep to automate the creator economy.

Job Description

Join a five-person engineering team as a founding specialist in AI agents. You will design and deploy autonomous systems that handle discovery, negotiation, and campaign management for TikTok Shop brands. This role involves building long-running, stateful workflows from scratch, taking full ownership of backend infrastructure and orchestration in a fast-paced San Francisco-based environment.

Location

San Francisco, USA

Why this role is remarkable

• Work directly with founders in San Francisco as one of the first five engineers, shaping the technical architecture of the company's most strategic long-term bet.
• Join a high-growth startup (YC S25) that has already achieved 7-figure ARR and counts world-class operators like Steve Huffman and Matteo Franceschetti as investors.
• Move beyond simple API calls to build true autonomous agents featuring complex orchestration, state management, and error recovery for massive e-commerce workflows.

What you will do

• Build and own end-to-end long-running AI agents that automate multi-step affiliate marketing workflows, from creator discovery to performance tracking.
• Design and maintain the core backend infrastructure using Python, FastAPI, and GCP, ensuring agent reliability through advanced observability and error recovery systems.
• Collaborate on agentic system design, leveraging Claude Code and context engineering to decompose complex engineering tasks into autonomous actions.

The ideal candidate

• Brings 3+ years of backend engineering experience, specifically building complex asynchronous systems, automation, or AI-driven pipelines at a product-first company.
• Possesses deep technical proficiency in Python, FastAPI, and PostgreSQL, with the ability to manage cloud infrastructure on GKE or KEDA.
• Demonstrates an ownership mindset and resourcefulness, capable of translating vague product requirements into production-ready code without significant hand-holding.

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 Manager

Salary

Not Disclosed + Equity

Company Description

Well-funded enterprise AI platform

Job Description

Lead the end-to-end delivery of AI-native products designed to modernize complex enterprise R&D workflows. You will own the product lifecycle from discovery to iteration, translating ambiguous operational challenges into high-impact software. Partnering with elite engineering teams, you'll build the infrastructure powering the next generation of global innovation.

Location

London, UK

Why this role is remarkable

• Join a well-funded Series A startup backed by top-tier VCs at an early high-growth stage.
• Directly shape the product direction and roadmap with high autonomy and direct customer exposure.
• Work alongside a high-caliber team from elite tech companies building foundational AI infrastructure.

What you will do

• Own product delivery from initial problem discovery through to shipping and continuous iteration.
• Translate messy, fragmented enterprise workflows into seamless, AI-native software solutions.
• Collaborate daily with engineering and design teams to build and ship high-dependability tools.

The ideal candidate

• 4+ years of product management experience delivering successful customer-facing software products.
• Proven track record of operating independently in high-ambiguity, fast-paced startup environments.
• Strong technical and design intuition with the ability to communicate across cross-functional 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

Forward Deployed Engineer

Salary

Not Disclosed

Company Description

CommodityAI is building the AI-powered operating system for the global commodities industry, automating the complex manual workflows across the energy, metals, and agricultural sectors.

Job Description

As a Forward Deployed Engineer at CommodityAI, you will bridge the gap between AI product and physical trade operations. You'll partner with customers to automate unstructured data flows, configure technical schemas, and drive successful deployments. This is a high-impact role for an engineer who thrives at the intersection of code and customer outcomes.

Location

San Francisco, USA

Why this role is remarkable

• Work at the epicenter of global trade, transforming the foundational sector responsible for moving the world’s energy, metals, and agricultural resources.
• Join a high-growth environment where the product is selling faster than it can be onboarded, offering massive scale and impact.
• Gain high-agency experience with direct mentorship from the founding team while building the company's deployment playbooks from the ground up.

What you will do

• Configure data schemas and AI extraction workflows to turn messy real-world documents and emails into structured, actionable trade data.
• Lead customer onboarding workstreams from initial scoping and technical configuration through to user acceptance testing and successful go-live.
• Build internal tools, scripts, and automation templates that accelerate the deployment process and create leverage for the entire engineering function.

The ideal candidate

• 1-3 years of experience in software engineering, implementation engineering, or a technical consulting role with strong coding skills in Python or TypeScript.
• Proven technical proficiency with APIs, structured data models, and the ability to diagnose complex issues across AI-driven systems.
• Exceptional communication skills and an operator mindset, comfortable managing multiple customer workstreams in a fast-paced, 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

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

AI Research Engineer, Model Optimization and Inference

Salary

Not Disclosed

Company Description

Iconic Interactive is a seed-stage London-based AI-native video game studio building intelligent virtual actors that speak, move, and react in real-time. The team includes researchers and engineers from leading AI labs and game studios developing character intelligence, narrators, and world directors to create personal, immersive entertainment universes.

Job Description

As an AI Research Engineer at Iconic Interactive, you will bridge the gap between massive research models and real-time interactive entertainment. You'll architect high-performance inference pipelines for multimodal LLMs and TTS models, optimizing them to run on consumer hardware. Your work ensures digital entities perform seamlessly within the constraints of a game loop.

Location

London, UK

Why this role is remarkable

• Lead the technical frontier by taking cutting-edge research models and making them run in real-time on consumer hardware for interactive digital experiences.
• Join a seed-stage startup founded by AI lab and game studio veterans, offering significant autonomy and end-to-end ownership of the inference engine.
• Work at the unique intersection of System ML and Game Tech, shaping the core intelligence of virtual actors in next-generation entertainment.

What you will do

• Architect and maintain low-latency inference pipelines for Multimodal LLMs, TTS, and Vision models targeting server-side and consumer edge environments.
• Implement state-of-the-art optimization techniques like Speculative Decoding, KV-Cache quantization, and custom CUDA/Triton kernels to minimize latency and maximize throughput.
• Collaborate with game engineering teams to integrate thread-safe, non-blocking asynchronous inference directly into the game loop using C++ wrappers.

The ideal candidate

• Holds an MSc or PhD in Computer Science or ML with deep expertise in model optimization techniques like quantization, pruning, and distillation.
• Possesses strong proficiency in C/C++ and Python, with hands-on experience deploying latency-sensitive ML models using frameworks like PyTorch or JAX.
• Demonstrates specialized knowledge in LLM-specific optimizations such as KV-cache management, speculative decoding, and high-performance runtimes like TensorRT or ONNX.

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

Salary

$170k-$220k + Equity

Company Description

Withshepherd.com is a $42M Series B AI-native insurance platform backed by Spark Capital and Intact Private Capital, automating high-hazard commercial underwriting for global infrastructure.

Job Description

Join Withshepherd.com's elite AI team to build the industry's first fully autonomous underwriting system. You will architect agentic workflows and RAG pipelines that transform messy, unstructured data into real-time insurance quotes for massive infrastructure projects. This high-impact role involves designing, prompt engineering, and shipping production-ready AI systems that redefine risk management.

Location

San Francisco, USA

Why this role is remarkable

• Ship the first agentic underwriting system in a $700B+ industry, moving from weeks-long manual processes to seconds-long AI automation for massive construction projects.
• Work in a high-leverage environment with a $42M Series B war chest, backed by industry giant Intact and top-tier VCs like Spark Capital and Susa Ventures.
• Join a culture where AI is a core part of the workflow, shipping daily alongside a CTO from Airbnb’s early engineering team in a dog-friendly SF office.

What you will do

• Architect and build agentic workflows that chain LLM capabilities to make autonomous underwriting decisions for $50M+ construction and renewable energy projects.
• Develop advanced information extraction systems and RAG pipelines to reach 100% parsing accuracy for complex, unstructured insurance documents and static applications.
• Collaborate cross-functionally with underwriters and product designers to translate complex insurance logic into scalable, production-grade AI agents that perform end-to-end workflows.

The ideal candidate

• Proven experience building production AI systems, including expert prompt design, RAG implementation, and architecting agents using LLM APIs in a high-growth environment.
• Strong full-stack foundations in TypeScript/JavaScript, specifically with Node.js and React/Next.js, supported by at least 5 years of professional software engineering experience.
• Founding-stage DNA with an obsession for ownership, capable of navigating extreme ambiguity and shipping high-quality code multiple times per day to solve real-world 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

Lead Software Engineer

Salary

£95,000 - £110,000 + Equity

Company Description

Searchland.co.uk is a high-growth, Fuel Ventures-backed London prop-tech company transforming how businesses leverage property data. Their platform processes terabytes of information with sub-24-hour latency, integrating thousands of data sources and 23m+ planning applications to empower developers, architects, and land agents with real-time, data-driven insights.

Job Description

Join Searchland.co.uk as a hands-on Lead Software Engineer focusing on building and shipping a complex, data-heavy product. As a senior individual contributor reporting to the CTO, you will own technical problems end-to-end using a modern stack including Next.js and tRPC, translating complex data into actionable intelligence for the UK property market.

Location

London, UK

Why this role is remarkable

• Purely IC-focused leadership role where you spend the majority of your time in the codebase without the overhead of people management or endless meetings.
• Exceptional benefits package including an EMI employee share scheme, 37 days of annual leave, and comprehensive Vitality private healthcare coverage for physical and mental wellbeing.
• Unrivaled technical challenge working with one of the UK’s most advanced property data pipelines, processing millions of records with industry-leading speed and accuracy.

What you will do

• Write high-quality, production-ready code across the full stack using Next.js, tRPC, React, and Tailwind to build performant, accessible features.
• Own the technical lifecycle of complex projects from discovery through to deployment and monitoring, including PostgreSQL schema design and database migrations.
• Partner with the data team to architect Elasticsearch-driven search and filtering solutions that handle vast datasets with high performance.

The ideal candidate

• Has 7+ years of software engineering experience with at least 2-3 years operating at a Lead, Staff, or Senior-plus level in a SaaS environment.
• Demonstrates deep proficiency in the core stack: React/Tailwind, Node.js/Next.js/tRPC, and databases including both PostgreSQL and Elasticsearch.
• Possesses the right to work in the UK and a genuine preference for hands-on building over directing others in a fast-moving 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

Senior Backend Software Engineer

Salary

Not Disclosed

Company Description

Chip Financial Ltd is a leading London-based fintech building a unique Lombard lending platform. They provide innovative financial solutions for both their proprietary Firenze brand and various SaaS clients, focusing on delivering highly available, secure, and scalable technology for the modern financial landscape.

Job Description

You will lead the development of Chip Financial Ltd's unique Lombard lending platform, shaping architecture and establishing engineering best practices. Working with Java and Spring Boot, you'll design cloud-native microservices and event-driven systems. This high-impact role involves collaborating with cross-functional teams to deliver reliable fintech solutions while mentoring junior engineers.

Location

London, UK

Why this role is remarkable

• Spearhead the development of a unique Lombard lending platform serving both internal brands and external SaaS clients.
• Join a sophisticated London fintech environment where you have a direct hand in shaping technical standards and architecture.
• Impact the future of financial technology by building highly available, fault-tolerant systems in a cloud-native microservices ecosystem.

What you will do

• Design, build, and maintain resilient backend services using Java and Spring Boot in a cloud-native, microservices-driven environment.
• Develop RESTful APIs and event-driven systems using message brokers and asynchronous processing to ensure high performance and scalability.
• Collaborate with engineering leadership and DevOps to optimize CI/CD pipelines and define architectural patterns for long-term maintainability.

The ideal candidate

• Possesses over 7 years of software development experience, including at least 2 years in a senior leadership or mentoring role.
• Demonstrates deep expertise in Java, Spring Boot, and building distributed systems with a strong focus on fault tolerance and consistency.
• Has a proven track record of designing and operating cloud-native microservices, containerization with Docker/Kubernetes, and event-driven 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

Automation Engineer

Salary

Not Disclosed

Company Description

Ligo Biosciences is a San Francisco-based biotechnology company focused on advanced biological automation and workflow efficiency.

Job Description

As an Automation Engineer at Ligo Biosciences, you will design and implement complex biological workflows using Hamilton systems. You will tackle diverse technical challenges in a fast-paced environment, bridging the gap between biology and engineering. This role is ideal for an early-career professional eager to drive impact in a high-growth biotech setting.

Location

San Francisco, USA

Why this role is remarkable

• Directly influence the scaling of biological experiments by building state-of-the-art automation infrastructure from the ground up.
• Join a high-intensity, mission-driven team in San Francisco where your contributions to technical challenges have immediate visibility and impact.
• Develop deep expertise in industry-leading Hamilton automation systems while remaining flexible to work across various engineering domains.

What you will do

• Develop, program, and maintain automated liquid handling protocols using Hamilton systems to streamline complex biological assays.
• Troubleshoot hardware and software integration issues, ensuring high reliability and uptime for critical laboratory automation workflows.
• Collaborate with biological scientists to translate manual laboratory processes into scalable, robust automated solutions across the platform.

The ideal candidate

• Possesses hands-on experience with Hamilton systems and a strong understanding of biological laboratory automation workflows.
• Demonstrates a high degree of technical flexibility and a proactive "founder's mindset" to tackle diverse engineering problems beyond the initial scope.
• Is an early-career professional based in San Francisco, prepared for the high-intensity demands and long hours characteristic of a fast-growing 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

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

AI Research Engineer

Salary

£80k-£120k + Equity

Company Description

Arva AI is a YC S24-backed startup that raised a $3M seed round led by Gradient Ventures to automate financial crime compliance using AI agents.

Job Description

As an AI Research Engineer at Arva AI, you will develop and refine the core models powering automated AML and KYC workflows. You will lead applied ML research, fine-tuning LLMs and vision models to automate 80% of manual human review. Your work directly scales compliance operations for high-growth global fintechs.

Location

London, UK

Why this role is remarkable

• Join a YC S24 startup backed by Google’s Gradient Ventures that is fundamentally transforming how financial institutions fight crime through agentic AI.
• Work directly with CEO Rhim Shah, formerly the financial crime product lead at Revolut, to solve deep operational bottlenecks in the global banking sector.
• Apply cutting-edge research to a production environment already processing over 100,000 monthly compliance alerts for US and Canadian fintech partners.

What you will do

• Design and implement rigorous evaluation frameworks, benchmarks, and backtests to quantify model performance and prevent regressions in production compliance workflows.
• Fine-tune large language and vision models for specialized tasks including document fraud detection, web-scale due diligence, and automated report generation.
• Build human-in-the-loop continuous improvement pipelines that leverage analyst feedback to curate datasets and iteratively optimize model accuracy and reliability.

The ideal candidate

• Has at least 3 years of experience in AI research or engineering with a proven track record of building and deploying agentic systems.
• Possesses deep technical expertise in prompt engineering, model fine-tuning, and working with both LLMs and computer vision models in production.
• Maintains a strong product mindset and the ability to work across the stack, with TypeScript experience being a significant advantage for integration.

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

Software Engineer

Salary

$200k + Equity

Company Description

Series A industrial deeptech startup

Job Description

Join a well-funded startup miniaturizing lab-grade technology into real-time industrial sensors. You will build the backend services and platform infrastructure powering trace analysis for critical machinery. This role involves developing scalable Python services on AWS, ensuring robust data handling, and collaborating on-site to solve complex hardware-software integration challenges.

Location

San Francisco, USA

Why this role is remarkable

• Work on a unique hardware-software-data challenge miniaturizing lab-grade spectroscopy for real-time industrial monitoring.
• Join a high-agency, Series A team backed by top-tier VCs with significant capital to solve hard problems.
• Direct visibility and impact as your code identifies critical machine failures before they occur in the field.

What you will do

• Design and build scalable, reliable backend services in Python that handle sensitive industrial diagnostic data.
• Contribute to and improve AWS-based cloud infrastructure to keep systems performant, secure, and maintainable.
• Apply security best practices throughout the development lifecycle to handle sensitive data with extreme care.

The ideal candidate

• Strong proficiency in Python with solid experience building and operating production-grade backend and platform systems.
• Practical experience with cloud platforms, distributed infrastructure, and designing APIs for complex data environments.
• A security-conscious approach to development and a commitment to five-day in-office collaboration in San Francisco.

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

£50k–£80k + Equity

Company Description

Early-stage AI fintech startup

Job Description

Join as the first dedicated product hire building an AI-powered lead generation platform for venture capital and private equity firms. You will own features end-to-end, from customer discovery to shipping production code. Working directly with the CTO, you will define the technical architecture and scale automated investment sourcing workflows.

Location

London, UK

Why this role is remarkable

• Founding position with significant equity and the ability to influence core architectural decisions at day one.
• High market traction with existing revenue, paying customers, and a waitlist of global asset managers.
• Fast-paced environment utilizing advanced agentic development workflows to ship high-impact features every week.

What you will do

• Own the full product lifecycle by talking to customers, designing solutions, and building feature sets.
• Develop complex data pipelines, CRM integrations, and network visualization interfaces using Python and SQL.
• Manage cloud infrastructure and CI/CD deployments while optimizing the platform's proprietary machine learning scoring system.

The ideal candidate

• 1–3 years of experience in a backend-leaning full stack role, ideally within a startup environment.
• Strong technical foundations in Python, FastAPI, and Postgres with a high comfort level in GCP or similar cloud services.
• Product-minded builder who enjoys customer interaction and taking full ownership of entire product features.

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

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.

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

Staff Software Engineer (Early Product)

Salary

Not Disclosed

Company Description

Atomus is a San Francisco-based cybersecurity startup protecting 100+ organizations in the defense industrial base, including the US Air Force, Space Force, and Navy, by automating complex security and compliance requirements for national security technology.

Job Description

As a Staff Software Engineer at Atomus, you will build the core engines of a multi-platform security ecosystem protecting the nation's most sensitive defense technologies. You will bridge the gap between desktop agents and cloud infrastructure while shaping the engineering foundations of a high-stakes, mission-driven startup during its most critical growth phase.

Location

San Francisco, USA

Why this role is remarkable

• Join a mission-critical team protecting the organizations building hypersonic aircraft, satellites, and autonomous defense platforms essential to national security.
• Work on a product with massive traction, already securing 100+ customers including the US Air Force and Navy, while still operating as a small, high-impact founding team.
• Tackle unique engineering challenges across Windows, macOS, and Ubuntu while developing next-generation agentic systems that automate complex security reasoning.

What you will do

• Architect and build the core infrastructure that senses, correlates, and acts across diverse customer security environments to ensure total protection.
• Develop and harden a multi-platform desktop agent at fleet scale, ensuring it remains unbreakable across Windows, macOS, and Linux distributions.
• Collaborate directly with founders to define engineering patterns, shipping culture, and product strategy as the team scales from early stage to industry leader.

The ideal candidate

• 7+ years of experience building production-grade software, specifically customer-facing SaaS platforms or sophisticated multi-platform desktop applications and agents.
• Expertise in diving deep into system behavior and low-level interactions to understand why software behaves the way it does across different environments.
• A fast-moving, ownership-oriented mindset that thrives on ambiguity and the challenge of building foundational systems from a blank page.

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

£80k-£100k + Equity

Company Description

Parsewise is a YC-backed startup building agentic infrastructure for high-consequence risk decisions in insurance. Founded by an ex-Palantir and ex-Bain team, Parsewise is backed by General Advance, Network VC, and prominent angels from OpenAI and Palantir to automate complex document ingestion and risk signaling for global underwriters.

Job Description

As the first Forward Deployed Engineer at Parsewise, you will bridge the gap between complex customer workflows and core platform engineering. You’ll sit with underwriters in the morning to understand their requirements and build production-grade deployments in the afternoon. This high-impact role directly shapes the product and drives value for leading enterprise insurance partners.

Location

London, UK

Why this role is remarkable

• Join as the first Forward Deployed Engineer, working directly with founders from Palantir and Bain to shape the company's deployment strategy and product roadmap.
• Backed by elite investors including Y Combinator, General Advance, and angels from OpenAI and McKinsey, operating at the cutting edge of AI for regulated industries.
• Directly impact revenue and product market fit by solving the hardest problems in unstructured data—hallucinations, explainability, and scalability—for leading global insurers.

What you will do

• Onboard insurance and reinsurance customers by deploying and configuring the Parsewise platform within their specific tech stacks and workflows.
• Translate complex, real-world underwriting and claims documents into structured, decision-ready data configurations, often working side-by-side with customer SMEs.
• Cycle between commercial activities and core engineering: scope use cases, run pilots, and build new features based on direct feedback from the field.

The ideal candidate

• Strong engineering foundation with the ability to write production-quality Python or TypeScript and integrate software directly into enterprise customer environments.
• Proven ability to navigate commercial conversations and scope technical use cases; experience in insurance or reinsurance is highly valued but secondary to quick learning.
• High-ownership mindset capable of shipping high-quality work in a fast-paced environment and earning trust with sophisticated, regulated buyers.

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

Graduate Software Engineer

Salary

Not Disclosed + Equity

Company Description

Letty is a $5.5M seed-funded AI startup backed by Entrepreneurs First and the founders of incident.io, building autonomous digital workers for the real estate industry. We are creating the AI operations layer that handles property management, sales, and tenant communications 24/7 across every channel.

Job Description

You will join Letty as one of the first ten engineers, building agentic AI systems that automate complex property operations. Working directly with a world-class team from Cambridge and Entrepreneur First, you'll ship production-ready code across the full stack using Python and TypeScript to transform how the real estate industry functions.

Location

London, UK

Why this role is remarkable

• Join a high-growth rocketship as engineer #5-10, offering a massive launchpad for future founders and immediate ownership of core architecture decisions.
• Work alongside an elite technical team, including a Cambridge ML CTO and engineers from Quant backgrounds, in a high-intensity, 5-day-a-week in-office environment.
• Backed by $5.5M in seed funding from Entrepreneurs First and high-profile angels, you will tackle one of the world's most meaningful and universal industries: real estate.

What you will do

• Develop and deploy multi-agent AI systems using Python (FastAPI) and LLMs to automate property viewings, sales, and contractor management.
• Build seamless full-stack user experiences with TypeScript, React, and Next.js that integrate deeply with CRMs, WhatsApp, and email platforms.
• Take end-to-end responsibility for shipping features, from initial architecture to production, seeing your work impact real property agencies within days.

The ideal candidate

• A top-tier graduate from Oxford, Cambridge, or Imperial, either graduating in 2026 or possessing 1-2 years of professional software engineering experience.
• Strong proficiency in Python and a desire to work across the full stack, including modern frontend frameworks and cloud infrastructure on AWS/GCP.
• A fast-moving, founder-mode mindset eager to thrive in a high-intensity startup culture that prioritizes rapid shipping and collaborative in-person 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

Founding Engineer

Salary

$150k–$180k + Equity

Company Description

Leland Care is a well-funded, pre-launch health-tech startup founded by a Stanford MBA and former executive from Sword Health and Homebase, building the first unified system of record for aging.

Job Description

As the first technical hire, you will build Leland Care’s core platform from scratch, developing the architecture, data ingestion pipelines, and AI intelligence layer. You’ll transform fragmented healthcare data into a proactive system of record, owning technical decisions and execution for a mission-driven startup preparing for 2026 health system pilots.

Location

USA

Why this role is remarkable

• True 0-1 ownership as the first technical leader, defining the architectural foundation of a platform with no existing codebase or legacy constraints.
• Backed by a multi-year runway and founded by a leader who scaled businesses at Sword Health and Homebase, with major US health system pilots already slated for 2026.
• Solve the massive, fragmented data problem in senior care, creating a product that directly helps seniors live longer, healthier, and more coordinated lives.

What you will do

• Design and implement the complete technical architecture across four layers: data ingestion/storage, intelligence, action, and compliance.
• Build agentic AI systems that synthesize fragmented information from physicians, insurers, and pharmacies into actionable, coordinated support for seniors.
• Lead end-to-end development from initial concept through pilot launch, making high-leverage decisions on the tech stack and engineering culture.

The ideal candidate

• Proven track record of building complex systems from scratch and thriving in the high-ambiguity environment of an early-stage startup.
• First-principles thinker with deep expertise in data pipelines, intelligence layers, and creating scalable technical infrastructure.
• A high-agency, low-ego engineer who takes extreme ownership of outcomes and wants the intensity of being a founding technical hire.

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

£65k–£95k + Equity

Company Description

Valyu is a London-based, seed-stage startup with over £2M raised to build the foundational search and memory layer for AI agents. We are a team of nine engineering-focused individuals rethinking how AI-native applications access, understand, and act on petabyte-scale knowledge through advanced retrieval and indexing systems.

Job Description

Join Valyu to own the core infrastructure powering the next generation of AI agents. You will design and operate petabyte-scale storage, retrieval, and serving systems. By building high-performance architectures in Rust and Python, you’ll ensure that AI agents have the fast, reliable context they need for complex reasoning and research.

Location

London, UK

Why this role is remarkable

• Work at the frontier of AI infrastructure where your code defines how agents access and process world knowledge at a petabyte scale.
• Join a lean, highly technical team of nine in London backed by over £2M in seed funding, offering immense ownership and minimal abstraction.
• Experience a true renaissance in information retrieval, moving from first-principles research to production-ready systems that handle indexing and serving in real-time.

What you will do

• Own the end-to-end architecture of critical layers, including search and storage engines, data lakes, ingestion pipelines, and ML serving systems.
• Make foundational technical decisions on storage formats, query algorithms, and scheduling models that balance petabyte-scale latency against operational costs.
• Engineer high-concurrency systems using Rust and Python, operating them on AWS and GCP with tools like Kubernetes, Terraform, and advanced observability.

The ideal candidate

• A mid-level engineer with at least 3 years of experience shipping and operating systems-intensive infrastructure or distributed systems in production environments.
• Highly proficient in Rust and Python, with a background in database internals, search infrastructure, or scaling ML systems like vector databases and RAG.
• A relentlessly resourceful builder who has managed cloud workloads on AWS/GCP and possesses the technical judgment to make long-term architectural 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

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

Software Engineer

Salary

Not Disclosed + Equity

Company Description

VC-backed defense tech startup

Job Description

You will build scalable backend infrastructure for ML-powered services, bridging the gap between experimentation and production engineering. Focusing on supply chain optimization for regulated environments, you will develop robust data pipelines and model-serving architectures. This role offers high ownership within a hybrid team of veterans and former Amazon engineers.

Location

Berlin, Germany / London, UK / Paris, France

Why this role is remarkable

• Work on mission-critical logistics software that optimizes supply chains by reducing computation time by 90% in complex tactical environments.
• Join a well-funded pre-seed startup backed by top-tier VCs, founded by a team of defense veterans and former Amazon engineers.
• Enjoy a unique hybrid culture with fully-funded monthly team meetups in various European cities to collaborate and build relationships.

What you will do

• Develop and maintain scalable backend infrastructure using Python and Java/Kotlin to support large-scale ML data processing and model serving.
• Design and implement robust data pipelines and API integrations that connect ML models to core platform services in production environments.
• Refactor existing systems to improve performance, reliability, and latency while adapting to ambiguous product requirements and tactical constraints.

The ideal candidate

• Has 2-4+ years of professional software engineering experience with specific exposure to ML systems or data-intensive backend applications.
• Is proficient in Python and familiar with ML frameworks like PyTorch or Scikit-learn, alongside strong core backend engineering fundamentals.
• Thrives in high-ownership, fast-paced environments and possesses the grit to solve complex deployment challenges in regulated or defense 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

Founding Engineer

Salary

$150k-$180k + Equity

Company Description

Mission-driven AI healthtech startup

Job Description

As the first engineering hire, you will build a revolutionary system of record for senior care from the ground up. You will own the architecture and technical execution of an AI-powered platform that unifies fragmented healthcare data. This 0-1 role involves developing ingestion pipelines, intelligence layers, and agentic systems to transform senior health records into actionable care.

Location

New York, USA

Why this role is remarkable

• Build a core platform from scratch as the first engineering hire with significant ownership.
• Backed by top-tier VCs to tackle the complex, high-impact problem of senior care navigation.
• Work directly with the founder in-person in NYC to shape the product and technical culture.

What you will do

• Architect and build the core data ingestion, intelligence, and compliance layers of the platform.
• Design agentic systems that translate complex senior health records into coordinated navigation actions.
• Make high-stakes technical decisions that define the company's long-term engineering foundation and scalability.

The ideal candidate

• Proven experience as a founding engineer or early employee at a fast-growing startup.
• Deep technical expertise across the full stack, including backend systems, data engineering, and AI/ML.
• High-agency problem solver with a coherent career path and a desire for mission-driven 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

Data Scientist / MLE

Salary

$200k-$300k + Equity

Company Description

High-growth AI marketing technology platform

Job Description

You will lead the development of the machine learning backbone for an advanced platform. You’ll architect NLP models and search algorithms to help brands optimize their presence in the next generation of discovery engines. This is a hands-on role building production-grade LLM applications, retrieval systems, and ranking models at scale.

Location

New York, USA

Why this role is remarkable

• Work at the intersection of LLMs, search, and brand discovery within a fast-moving, technical environment.
• Join a well-funded, Series B startup backed by premier Tier-1 venture capital firms during a period of hyper-growth.
• High-impact technical leadership role where you influence core architecture and ship production systems that define a new category.

What you will do

• Architect and deploy production-grade NLP and search systems that analyze and optimize content for AI-driven discovery engines.
• Build and scale advanced LLM-based applications including RAG systems, autonomous agents, and fine-tuning pipelines at production scale.
• Partner with product and engineering teams to identify ML opportunities and own the infrastructure from experimentation to serving.

The ideal candidate

• 5+ years of experience building and scaling production ML systems with a focus on NLP, search, or recommendation engines.
• Hands-on expertise with LLMs, prompt engineering, and modern ML infrastructure for monitoring, serving, and experiment tracking.
• Proven ability to drive technical strategy and influence engineering practices through high-quality code and architectural leadership.

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

Full Stack Engineer

Salary

£70k–£80k + Equity

Company Description

Vitruehealth.com is a high-growth London health-tech startup that has reached £1m ARR building VIDA, an AI-powered platform reducing musculoskeletal pain by 34%. Backed by leading UK investors, they serve global enterprise clients like Bupa and the NHS to eliminate chronic pain for millions through computer vision and clinical diagnostics.

Job Description

As a Full Stack Engineer at Vitruehealth.com, you will own the development of features that directly improve health outcomes. Working across Vue.js, .NET, and AWS, you'll collaborate with clinical experts to ship AI-driven tools. This role is perfect for a mission-driven builder who thrives with autonomy in a fast-paced environment.

Location

London, UK

Why this role is remarkable

• Work on high-impact technology like webcam-based pose estimation and AI data analysis tools that have a proven 34% success rate in reducing chronic MSK pain.
• Join a fast-growing team that has already hit £1m ARR and secured major enterprise partnerships with the NHS, AXA, and Gymshark across 32 countries.
• High-autonomy culture where you'll own features end-to-end and work alongside a clinical lead (GP) and senior designers to solve complex medical challenges.

What you will do

• Ship end-to-end features using Vue.js and .NET Core, from natural language AI analysis tools to event-driven notification systems.
• Collaborate directly with UX designers and clinical experts to translate complex medical logic into intuitive, scalable software solutions.
• Make key architectural and tooling decisions to keep systems reliable, scalable, and efficient across the VIDA platform and AWS infrastructure.

The ideal candidate

• 3+ years of full-stack engineering experience with a strong grasp of modern frontend frameworks like Vue and strongly typed backend systems like C#/.NET.
• Proven track record of building complex applications and taking initiative in high-velocity startup environments where shipping value is prioritized over waiting for tickets.
• Product-minded engineer who values mission-driven work and is comfortable taking ownership of features from architectural design to deployment on AWS.

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

$140K - $200K + Equity

Company Description

Northslope Technologies is a high-growth Series A startup founded by ex-Palantir engineers building custom AI products for Fortune 500 companies and governments. Bootstrapped to 7x revenue growth before raising institutional capital, the team includes elite talent from Eleven Labs, McKinsey, Google, and Uber, focused on deploying production-grade ML and LLM solutions.

Job Description

As a Forward Deployed Software Engineer at Northslope Technologies, you will architect and build mission-critical applications that solve complex enterprise problems. Working directly with stakeholders, you’ll transform disparate data into operator-centered workflows using Python, TypeScript, and the Palantir Foundry platform. You’ll own the entire lifecycle from conception to production, driving measurable business impact at uncommon speed.

Location

New York, USA

Why this role is remarkable

• Work in a high-velocity, 0->1 environment where every engagement functions like a mini-startup with no PM layers or bureaucracy.
• Join an elite technical team of ex-Palantir, Google, and Uber engineers at a company that grew revenue 7x before its Series A.
• Solve "move-the-needle" problems for the world's most ambitious organizations, putting powerful AI tools directly into the hands of real operators.

What you will do

• Partner closely with customers to conceive, architect, and maintain sophisticated applications that operationalize enterprise data and transform business workflows.
• Rapidly iterate and build production-ready software using Python and TypeScript on the Palantir Foundry and AIP operating system.
• Embed with client teams to understand pain points and deliver tangible outcomes that significantly improve the customer's bottom line.

The ideal candidate

• Possesses professional proficiency in Python and/or TypeScript with a demonstrated ability to build applications using large, complex datasets.
• Exhibits an obsession with customer success and a track record of delivering real-world outcomes through code or technical analytics products.
• Is comfortable working autonomously in a hybrid environment and willing to travel 10-33% for onsite client implementations and high-impact deployments.

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

Growth Manager

Salary

£35k-£50k + Equity

Company Description

Mealia is one of the UK's fastest-growing consumer grocery apps, leveraging AI to help families plan meals and shop in minutes. Partnered with major UK and US supermarkets and recently reaching #2 on the UK App Store, Mealia is reimagining the £1T+ grocery industry by making healthy, sustainable eating effortless and affordable for everyone.

Job Description

As Mealia's first Growth Manager, you will drive organic user acquisition by building social-first content playbooks and creator partnerships from scratch. Working directly with the CEO, you will scale the brand's presence across digital channels, treating organic growth with the precision of performance marketing to bring agentic AI grocery shopping to millions of households.

Location

London, UK

Why this role is remarkable

• Join a high-momentum startup that recently hit #2 on the UK App Store and is already partnering with some of the world's largest supermarket chains.
• Take full ownership of the growth engine at the 0-to-1 stage, working directly with the CEO to define how a category-defining AI product reaches the mass market.
• Participate in a once-in-a-generation shift as agentic AI disrupts the £1T global grocery market, offering meaningful equity and rapid career progression in a high-performance environment.

What you will do

• Build and execute repeatable organic acquisition playbooks across social platforms, focusing on high-impact content creation, hook optimization, and community engagement.
• Identify, source, and manage creator partnerships and UGC campaigns that drive millions of views and measurable app downloads through smart brief writing and execution.
• Iterate rapidly on content strategy using a performance-marketing mindset, analyzing data to scale successful creative experiments and refine the user acquisition funnel.

The ideal candidate

• Proven track record scaling B2C growth for early-stage startups, with deep experience in consumer app marketing and building brand traction from scratch.
• A social-first operator who lives and breathes platform trends, with hands-on experience sourcing creators, writing briefs, and refining content until it converts.
• High-agency problem solver who thrives in fast-paced, unscripted environments and possesses the creative instincts to spot emerging trends before they go mainstream.

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 building the data layer for AI agents, featuring a massive open-source framework with 25M+ monthly downloads and over 450 contributors. As an early-stage leader in AI infrastructure, the company provides managed platforms like LlamaCloud and LlamaParse for enterprise-grade AI application development over complex documents.

Job Description

Join LlamaIndex to own the full sales cycle for high-growth companies under 500 employees. You will convert massive open-source community signals and inbound interest into new ARR by selling technical AI infrastructure to engineers. This role requires technical fluency to lead POCs and navigate complex developer-led evaluations.

Location

San Francisco / New York City, USA

Why this role is remarkable

• Work at the forefront of the AI stack with a product powering 25M+ monthly downloads and one of the world's largest AI communities.
• Sell a genuinely technical product—LlamaCloud and LlamaParse—to engineers and data teams who evaluate infrastructure based on merit, accuracy, and latency.
• Shape the commercial motion from the ground up as an early GTM hire, with a direct path to senior leadership as the company scales.

What you will do

• Own the end-to-end sales cycle including prospecting, technical discovery, structured POCs, and final negotiations for mid-market accounts.
• Generate consistent pipeline by leveraging open-source community signals, partner referrals, and your own high-velocity outbound prospecting efforts.
• Collaborate closely with Solutions Engineers to ensure POCs meet specific technical success criteria and demonstrate clear business value to technical buyers.

The ideal candidate

• Has 2–5 years of full-cycle SaaS sales experience, specifically selling developer tools, APIs, or AI/ML infrastructure to technical personas.
• Demonstrates a "BDR-to-AE" DNA with a proven track record of self-sourcing a significant portion of their own sales pipeline.
• Maintains an AI-native workflow, using tools like ChatGPT or Claude daily for account research, prospecting, and preparing for technical deep-dives.

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.

===

Title:
Founding Engineer (£100k–£150k + Equity) at High-growth AI data startup

Job Title

Founding Engineer

Salary

£100k–£150k + Equity

Company Description

High-growth AI data startup

Job Description

As the first engineering hire, you will build AI agents that automate complex data reasoning for enterprise industries. You will own features end-to-end across AI orchestration, data engineering, and multi-tenant infrastructure. This is a high-autonomy role designed for an exceptional engineer ready to shape the technical foundation of a next-generation intelligence platform.

Location

London, UK

Why this role is remarkable

• Join as employee #1 with significant equity and direct influence on product strategy alongside the founders.
• Backed by top-tier venture programs and working directly with major enterprise clients on production AI systems.
• Unique opportunity to work at the intersection of LLM orchestration and high-stakes, unstructured data processing.

What you will do

• Build and deploy production-grade LLM orchestration frameworks and evaluation loops using Python and TypeScript.
• Design scalable data pipelines and medallion architecture to ingest and transform heterogeneous data sources.
• Architect secure, multi-tenant cloud infrastructure and manage end-to-end feature delivery for enterprise customers.

The ideal candidate

• Proven track record of building and shipping real products with a high bias for action and speed.
• Proficiency in TypeScript/React and Python, with a mastery of modern AI coding tools to maximize output.
• Comfortable with ambiguity and a 6-day startup work cycle in a fast-paced, high-accountability 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

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

Senior Engineer (AI Governance)

Salary

£130k + Equity

Company Description

StackOne is a $24M VC-backed London tech company, supported by GV and Workday Ventures, building the AI Integration Gateway for SaaS products.

Job Description

You will lead the development of StackOne's governance layer, creating the essential security infrastructure for AI agents accessing enterprise systems. By building tools for enrollment, provisioning, and policy enforcement, you'll ensure agentic integrations are secure, compliant, and identity-bound, effectively defining the standards for how enterprises safely deploy AI at scale.

Location

London, UK

Why this role is remarkable

• Shape the fundamental security architecture for the agentic era, building the AI-equivalent of MDM and API gateways.
• Join a high-growth startup backed by top-tier investors like GV and Workday Ventures with $24M in total funding.
• Work in a high-ownership senior IC role reporting directly to technical leadership on a strategic pillar of the roadmap.

What you will do

• Design and implement a robust provisioning lifecycle for tool access, covering enrollment, rotation, and revocation across managed auth layers.
• Build high-performance policy and rules engines to enforce runtime access controls for AI agents based on identity and context.
• Develop continuous posture monitoring and telemetry systems to detect anomalies and surface risky scopes within connected SaaS ecosystems.

The ideal candidate

• Extensive experience building production-grade platform infrastructure such as API gateways, MDM systems, or EDR platforms.
• Deep technical expertise in identity systems like OAuth, OIDC, and SCIM, alongside the design of complex policy-driven access control engines.
• Strong software engineering fundamentals with a proven ability to own mission-critical systems end-to-end within the request-path of high-traffic 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

Staff Software Engineer

Salary

£130k-£150k + Equity

Company Description

UnlikelyAI is a Series A London startup founded by William Tunstall-Pedoe, the creator of Alexa, building a novel neurosymbolic platform. They combine LLMs with proprietary symbolic technology to provide reliable, explainable AI for regulated industries, already serving tier-1 banks and leading accountancy firms in high-stakes financial and compliance sectors.

Job Description

As a Staff Software Engineer at UnlikelyAI, you will be the lead individual contributor shaping a novel neurosymbolic platform. You'll bridge the gap between probabilistic machine learning and deterministic computing, architecting public APIs and document pipelines that enable enterprises to deploy reliable, explainable AI at scale for high-stakes financial and compliance use cases.

Location

London, UK

Why this role is remarkable

• Work at the frontier of AI alongside a world-class team from Google, Amazon, and Imperial College, founded by the visionary creator of Alexa.
• Solve the critical "reliability problem" in AI by building a unique neurosymbolic engine that combines the power of LLMs with deterministic, symbolic reasoning.
• Lead the transition from bespoke enterprise engagements to a scalable global platform, owning the architecture of the company's first public API and core infrastructure.

What you will do

• Architect and build the foundational public API, making critical decisions on scalability, versioning, and developer experience that will shape the platform for years.
• Design and implement complex document ingestion pipelines and symbolic reasoning engines capable of handling diverse regulatory data formats with deterministic precision.
• Drive cross-cutting technical initiatives and raise the engineering bar by mentoring talent, conducting deep system design reviews, and establishing production-quality standards.

The ideal candidate

• Deep expertise in Python and a proven track record of architecting large-scale, production-grade systems within complex collaborative codebases and monorepos.
• Extensive experience with complex algorithms, data structures, and cloud infrastructure (AWS/Terraform) to support non-trivial algorithmic problems at enterprise scale.
• Demonstrated technical leadership through influence, having shaped the architectural trajectory of products or platforms without necessarily managing direct reports.

===

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 Manager, Revenue Operations

Salary

$165k-$185k + Equity + Bonus ($210k OTE)

Company Description

VC-backed healthcare AI platform

Job Description

You will own the revenue engine at a scaling healthtech startup, building Salesforce architecture as the central source of truth. You'll design complex commission models, transform gut-feel forecasting into data-driven science, and manage the full sales tech stack. This high-impact role partners with leadership to scale a mission-driven care platform nationwide.

Location

San Francisco, USA

Why this role is remarkable

• Join a high-growth mission-driven startup solving the national care crisis through AI-powered clinical oversight and family support.
• Backed by top-tier VCs and already operating at scale with millions of hours of care delivered across multiple states.
• Direct ownership of the go-to-market engine, offering the chance to build and scale RevOps infrastructure from the ground up.

What you will do

• Architect and manage the Salesforce ecosystem, establishing robust data validation rules and automated flows to ensure a single source of truth.
• Design, implement, and administer complex commission models and territory management strategies with strict attribution rules.
• Partner with sales and finance leadership to build sophisticated forecasting models and data-backed performance insights.

The ideal candidate

• 5+ years of Revenue Operations experience within high-growth startups, specifically through Series A or B stages.
• Certified Salesforce Administrator with deep technical expertise in architecture, advanced flows, and complex system integrations.
• Analytical powerhouse proficient in SQL and Excel, capable of modeling intricate financial scenarios and compensation plans.

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

Business Development Representative

Salary

Not Disclosed

Company Description

Well-funded enterprise AI startup

Job Description

As the first Business Development Representative in London, you will own the top-of-funnel pipeline for a high-growth AI company. You will research accounts, build target lists, and book meetings with C-suite executives at global enterprises. This is a builder role where you will design and optimize outbound workflows from scratch.

Location

London, UK

Why this role is remarkable

• Join as the first London-based BDR and play a critical role in scaling the company's most important growth lever.
• Backed by top-tier venture capital firms and founded by a team with experience at elite global technology organizations.
• Move beyond standard outreach by building and optimizing your own AI-powered sales stack using tools like Clay and Attio.

What you will do

• Identify and research high-value accounts to build strategic target lists for outreach to C-suite and VP-level decision-makers.
• Execute creative outbound campaigns across multiple channels, focusing on unconventional touches that secure replies from enterprise leaders.
• Continuously improve the outbound engine by designing and implementing automated, AI-assisted workflows to drive higher efficiency and conversion.

The ideal candidate

• Possesses 1-2 years of outbound B2B experience, ideally within the enterprise SaaS or artificial intelligence sectors.
• Demonstrates exceptional grit and creative resourcefulness with a proven track record of building sales processes from the ground up.
• Maintains high professional credibility and the communication skills necessary to engage effectively with executives at the world's largest companies.

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

Senior Full Stack Engineer

Salary

Not Disclosed

Company Description

Well-funded AI infrastructure startup

Job Description

Build a real-time compliance engine and AI-powered rewriting platform from the ground up. You will own features end-to-end, moving between React/TypeScript and Python/Go to ship mission-critical software. Join a founding team of industry veterans building the next generation of AI safety and regulatory infrastructure in the heart of NYC.

Location

New York, USA

Why this role is remarkable

• Join a well-funded startup backed by top-tier VCs and led by a successful repeat founder.
• Solve complex technical challenges in real-time enforcement, AI safety, and regulatory policy-as-code.
• Enjoy high ownership and impact, defining the technical foundation and culture of a growing engineering team.

What you will do

• Develop the core inline enforcement engine and the rules layer for real-time regulatory compliance.
• Build and optimize low-latency backend services and data pipelines using Go and Python.
• Create intuitive, high-performance user interfaces and AI-powered features with React and TypeScript.

The ideal candidate

• Proven experience shipping production software at high-growth companies with a rigorous engineering culture.
• Deep proficiency across the full stack, with the ability to optimize both UI and low-latency backend services.
• Thrives in early-stage environments, taking pragmatic ownership of architecture and product delivery without a PM.

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

XF Founder

Salary

Not Disclosed

Company Description

Entrepreneurs First is a pioneering talent investor with a $16B+ portfolio, backed by tech legends like Reid Hoffman and the Collison brothers, specifically designed to help repeat founders build their next venture-scale company.

Job Description

This bespoke program is for repeat founders ready to build their second or third venture with global ambitions. Entrepreneurs First provides the infrastructure, co-founder matching, and capital to accelerate your journey from ideation to investment. If you have unfinished business and are ready to go bigger, this is your platform.

Location

London, UK

Why this role is remarkable

• Join a $16B+ ecosystem backed by industry titans including Patrick and John Collison (Stripe), Reid Hoffman (LinkedIn), and Demis Hassabis (Google DeepMind).
• Access a curated peer group of high-caliber repeat founders who understand the unique challenges of building from scratch after a previous venture.
• Leverage EF's proven methodology for co-founder matching and rapid company building, which has produced breakout successes like Tractable, Cleo, and PolyAI.

What you will do

• Identify and validate a high-growth, venture-scale business idea using EF’s structured framework and world-class advisory network.
• Match with a high-caliber co-founder or founding team members specifically vetted for experienced operators and technical leaders.
• Secure initial investment and compress the early months of company building into weeks through intense execution and accountability.

The ideal candidate

• Proven experience as a tech founder who built a product, won customers, and led a venture-backed team during a previous startup journey.
• Possesses a deep-seated ambition and a sense of unfinished business to build a globally significant company after a previous venture outcome.
• Strong technical or commercial background with a bias toward action, currently looking to move from an operator role back into the founder seat.

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 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

Head of Performance Marketing / Paid Acquisition

Salary

$180k-$250k + Equity

Company Description

Fortuna Health is a $22M Series A health tech startup backed by a16z and Y Combinator. After securing a dominant B2B position helping providers manage Medicaid navigation, Fortuna is expanding into the D2C market to help 80+ million Americans access and maintain their healthcare coverage through an intuitive, consumer-first platform.

Job Description

You will lead Fortuna Health’s transition into the D2C market by building and owning the performance marketing engine from the ground up. Focusing on paid search, you’ll architect the growth funnel, manage significant budgets, and run high-velocity experiments. This is a hands-on, high-impact role driving the primary acquisition channel for a mission-critical healthcare platform.

Location

New York, USA

Why this role is remarkable

• Own the entire D2C acquisition strategy from scratch at a well-funded Series A startup backed by premier investors like a16z and Y Combinator.
• Drive meaningful social impact by helping millions of families navigate the complex Medicaid system to ensure they don't lose vital health coverage.
• Join a high-growth environment with a dominant B2B foundation, now scaling into a massive consumer market with full autonomy over the paid search stack.

What you will do

• Architect and execute the end-to-end paid search strategy, primarily focused on Google Ads, to deliver high-intent leads at scale.
• Build a disciplined experimentation engine for ad creative, landing pages, and interactive tools to optimize conversion across the entire funnel.
• Collaborate with senior leadership and operations to report on key metrics like CAC and ROAS, tying marketing spend directly to enrollment outcomes.

The ideal candidate

• Has at least 4 years of performance marketing experience with a proven track record of scaling paid acquisition in a fast-paced environment.
• Demonstrates mastery of Google Ads and paid search funnels, ideally within regulated industries such as healthcare, fintech, or legal services.
• Thrives in a high-velocity, in-person culture and possesses a builder’s mindset, comfortable moving from high-level strategy to hands-on account 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

Tech Lead

Salary

£75,000-£100,000

Company Description

Private equity-backed fintech education platform

Job Description

You will own technical quality across a Java/Spring Boot and React estate, shipping meaningful code while mentoring a small team. This role offers a structured transition to Engineering Manager within one year. Working in an AI-first environment, you will drive CI/CD maturity and architecture for a platform used by top-tier global banks.

Location

London, UK

Why this role is remarkable

• Defined, dated path to Engineering Manager status at your first annual review.
• Backed by private equity with a product used by major global financial institutions.
• High-autonomy environment prioritizing AI-assisted development and technical excellence.

What you will do

• Lead day-to-day technical quality through code reviews, architecture, and mentoring.
• Ship production-ready code across Java microservices and React frontends.
• Drive CI/CD maturity and manage the transition to continuous deployment.

The ideal candidate

• Proven experience with Java/Spring Boot and React in production environments.
• Demonstrated leadership-without-authority through mentoring and setting engineering standards.
• Proficient with AI coding tools and experienced in improving CI/CD pipelines.

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

£80k-£95k + Equity

Company Description

Suvera Ltd is a London-based healthtech company backed by Google for Startups and Morningside Ventures, operating a virtual clinic for the NHS. Managing care for over 300,000 patients with chronic conditions, Suvera Ltd builds the technology required to deliver proactive, personalised healthcare at scale across the UK.

Job Description

As a Senior Product Engineer at Suvera Ltd, you will shape the core technology behind a high-impact virtual clinic. Working with a full-stack TypeScript/SST/AWS environment, you will bridge the gap between clinical needs and technical implementation. Your work directly improves care for patients with chronic conditions while mentoring fellow engineers.

Location

London, UK

Why this role is remarkable

• Join a mission-driven team backed by Google for Startups and Morningside Ventures to revolutionise chronic condition management for the NHS.
• Work at the forefront of healthtech innovation, building a platform that already manages care for over 300,000 patients and is growing rapidly.
• Enjoy a remote-first, asynchronous culture that prioritises wellbeing with 33 days of holiday and dedicated budgets for education and health.

What you will do

• Design and develop scalable systems across a TypeScript monorepo using Node.js, React, and SST serverless architecture on AWS.
• Collaborate directly with clinicians and designers to translate complex medical requirements into intuitive, reliable software for patient care.
• Own end-to-end delivery of features, including infrastructure, observability, and monitoring, while championing high engineering standards and code quality.

The ideal candidate

• Has at least 4 years of experience in product-focused engineering roles with deep expertise in TypeScript, React, and Node.js.
• Brings hands-on experience with serverless architecture on AWS and a strong understanding of building scalable, secure, and accessible applications.
• Possesses a product mindset with a desire to mentor others and help shape the engineering culture within a fast-growing 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 Engineer

Salary

Not Disclosed

Company Description

Futurelovers.com is a seed-stage San Francisco startup building Hivemind, an AI-native social intelligence product backed by First Round Capital and founders of Twitter, Shopify, and Pinterest. The team, composed of ex-Apple and ex-Midjourney talent, is creating a frontier platform that allows AI to reason across networks of human relationships.

Job Description

As the first full-time engineer at Futurelovers.com, you will co-own the technical foundation of Hivemind from day zero. You will architect core infrastructure for AI-driven social reasoning, bridging the gap between distributed systems and human networks. Working alongside elite design and research talent, you’ll define a new category at the intersection of AI and collective coordination.

Location