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

The next step is to speak to Jack.

Job Title

Senior Sales Executive

Salary

$100K + Commission

Company Description

AI-focused engineering solutions provider

Job Description

As the first Senior Sales Executive, you will own the client acquisition strategy for high-value regulated sectors including financial services and life sciences. You will leverage your existing network to sell high-impact outcomes like AI governance and secure data integration, bridging the gap between innovation ambitions and strict compliance requirements.

Location

Remote, USA

Why this role is remarkable

• First commercial hire outside the CEO, offering genuine ownership and the chance to build a growth engine from the ground up.
• Work with a profitable, established firm that has already scaled to $5M+ through founder-led sales and possesses strong operational infrastructure.
• Sell high-demand, high-value outcomes in AI governance and secure data integration to cash-rich, regulated industries like wealth management and pharma.

What you will do

• Leverage an existing network of technology and innovation decision-makers at financial institutions and life sciences organizations to generate conversations.
• Design and execute signal-based outreach strategies targeting firms facing AI adoption pressure but limited by internal IT constraints and regulatory frameworks.
• Manage the full sales cycle from initial contact to closing complex, trust-based B2B deals, remaining the senior escalation point for long-term partnerships.

The ideal candidate

• 10-15 years of experience in senior commercial roles within or adjacent to financial services or life sciences, with an active network of CTOs and COOs.
• Deep understanding of regulatory frameworks such as HIPAA, SEC, FINRA, and 21 CFR Part 11 to speak credibly with compliance-focused leaders.
• Proven track record of closing complex B2B services deals and the ability to operate as a lean, self-directed hunter in an early-stage 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

Security Engineer

Salary

£70k-£110k + Equity

Company Description

StackOne is a $24M Series B AI integration gateway backed by GV and Workday Ventures. Based in London, they provide a unified API that allows SaaS platforms and AI agents to orchestrate hundreds of enterprise-grade integrations securely through real-time architecture, managed authentication, and end-to-end observability.

Job Description

As the first dedicated Security Engineer at StackOne, you will own the cloud and product security posture end-to-end. Reporting to the CTO, you will build security tooling in TypeScript/Python, harden AWS/Cloudflare infrastructure, and threat-model features handling complex OAuth flows. You’ll enable engineers by automating security directly into the SDLC.

Location

London, UK

Why this role is remarkable

• First security hire opportunity: Define the security architecture and strategy from the ground up for a high-growth AI infrastructure startup.
• High-caliber backing: Supported by top-tier investors like GV and Workday Ventures with $24M raised to scale the future of agentic integrations.
• Builder-centric culture: This is a hands-on DevSecOps role where you ship production code and tooling rather than just managing GRC checklists.

What you will do

• Own the secure SDLC by driving SAST, dependency scanning, and secrets detection standards across all repositories and CI/CD pipelines.
• Harden the AWS and Cloudflare estate using zero-trust patterns, network segmentation, and advanced IAM/KMS configurations for multi-tenant environments.
• Threat-model new product features, connector executions, and agent tool-calling paths to ensure robust security for complex authentication and OAuth flows.

The ideal candidate

• 3+ years of security engineering experience with deep hands-on expertise in AWS security services like GuardDuty, Security Hub, and KMS.
• Proficiency in shipping production-grade code using TypeScript, Python, or Go, with a strong background in Infrastructure as Code (CDK or Terraform).
• Solid understanding of application security, including OWASP Top 10, threat modeling, and securing B2B SaaS multi-tenant environments at scale.

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

Device Specialist

Salary

£75k-£85k + Equity

Company Description

Scarlet is Europe's only Notified Body specializing exclusively in AI and software medical device certification, authorized by EU and UK governments to grant market access for frontier medical technology.

Job Description

As a Device Specialist at Scarlet, you will audit management systems and assess technical documentation for the world’s most innovative medical devices. Joining the London-based Assessment team, you will bridge the gap between regulatory standards and cutting-edge technology, helping expand Scarlet's scope from software into hardware medical device certifications.

Location

London, UK

Why this role is remarkable

• Join Europe's only Notified Body dedicated to AI and software medical devices, working at the intersection of regulatory law and frontier health technology.
• Participate in a high-growth environment with exponentially growing revenue and a proven product-market fit that is now scaling into hardware devices.
• Shape the future of medical device approvals globally, directly reducing delays so life-saving technology reaches patients significantly faster.

What you will do

• Conduct rigorous technical assessments of documentation and audit quality management systems for innovative medical devices to ensure regulatory compliance.
• Collaborate with internal software engineers and clinicians to design and optimize world-class tooling and processes for medical device conformity assessments.
• Stay at the forefront of international standards and regulatory guidance, incorporating new requirements into Scarlet’s expanding global approval frameworks.

The ideal candidate

• Holds a Bachelor’s degree or higher in engineering, medicine, or a relevant scientific discipline with a deep understanding of technical requirements.
• Possesses at least four years of professional experience in medical device manufacturing or research, including two years specifically in design and testing.
• Brings two years of dedicated experience in quality management systems and a proven ability to interpret complex normative texts and regulatory 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

Lab Manager

Salary

Not Disclosed

Company Description

Well-funded tech-bio AI startup

Job Description

As the Lab Manager for this stealth tech-bio startup, you will own the end-to-end operational backbone of a platform merging AI with wet lab biology. You’ll oversee daily operations, safety compliance, and critical instrumentation procurement. This is a high-impact role building the systems that power drug discovery from the ground up.

Location

San Francisco, USA

Why this role is remarkable

• Build a state-of-the-art lab from the ground up at an early-stage startup.
• Backed by top-tier VCs at the intersection of AI and drug discovery.
• High degree of ownership and direct collaboration with the founding team.

What you will do

• Manage day-to-day lab operations including inventory, equipment maintenance, and safety compliance.
• Lead procurement for new instrumentation, from initial sourcing through installation and commissioning.
• Design and implement operational systems and processes to scale wet lab capabilities.

The ideal candidate

• Proven experience managing a lab within a tech-bio or AI-for-biology environment.
• Deep expertise in instrumentation procurement and vendor management for specialized equipment.
• Ability to thrive in an ambiguous, fast-paced startup environment as a primary owner.

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

TikTok Creative/Videographer

Salary

£30k-£55k

Company Description

Creative sports media production studio

Job Description

Lead the end-to-end creation of social-first content for one of the world's most iconic sports properties. You will shoot and edit 9:16 video for TikTok, Reels, and Shorts, engaging a global youth audience. This role involves capturing live game moments, reacting to culture, and delivering high-energy content at pace.

Location

London, UK

Why this role is remarkable

• Create content for one of the biggest names in global professional sports from day one.
• Enjoy genuine creative freedom where your ideas go live without complex layers of approval.
• Join a tech-enabled media group with a global creator network and proprietary content technology.

What you will do

• Shoot high-quality content on location at major games and events, capturing the culture around the sport.
• Edit 9:16 content for TikTok, Reels, and Shorts with a focus on quick turnarounds and same-day delivery.
• Identify emerging social trends and formats to proactively pitch content ideas that engage fans aged 14-25.

The ideal candidate

• Proven experience owning social-first video production end-to-end, with a portfolio of 9:16 TikTok-native work.
• Expert editing skills using tools like CapCut or Premiere, with a flair for captions, sound design, and pacing.
• Deep understanding of youth culture and a passion for sports, particularly the lifestyle and community surrounding basketball.

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

Analyst Contractor

Salary

£35/hr

Company Description

Cartesia is a frontier AI research lab founded by the Stanford AI Lab PhDs who invented State Space Models (SSMs). Backed by Index Ventures, Lightspeed, and NVIDIA, Cartesia is building the next generation of real-time, interactive intelligence capable of processing massive streams of audio, video, and text efficiently.

Job Description

Joining the Product Research and Operations (PRO) team, you will manage voice library operations and production workflows. You'll become a key expert in audio quality annotation and support critical research objectives. This hands-on role involves working closely with synthetic voice creation to ensure Cartesia’s models meet the highest possible standards for quality and performance.

Location

London, UK

Why this role is remarkable

• Work at a frontier AI lab founded by the inventors of State Space Models (SSMs), a revolutionary alternative to Transformers for efficient, large-scale foundation models.
• Join a highly-backed team supported by top-tier investors like Index Ventures, Lightspeed, and NVIDIA, contributing to products like Sonic that power millions of real-time conversations.
• Enjoy a high-impact, operationally intense role where your work directly shapes the quality and development of cutting-edge synthetic voice and speech-to-text technologies.

What you will do

• Manage end-to-end voice library operations, including posting job ads for voice actors, managing professional engagements, and maintaining strict quality timelines.
• Execute complex voice production workflows, specifically focusing on the creation and rigorous quality evaluation of synthetic voices through specialized annotation.
• Support core research and analysis objectives within the voice domain, tackling ad-hoc operational tasks that require high flexibility and reliability.

The ideal candidate

• Strong project management instincts with the ability to juggle multiple workstreams and high-throughput operational tasks without letting details slip through the cracks.
• Technical fluency including a solid understanding of how APIs work, practical experience with LLMs, and basic proficiency in Python or SQL.
• A research-driven and curious mindset, comfortable digging into data and using AI coding assistants like Cursor or Claude to rapidly execute high-quality results.

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

Contractor Developer (AI & BI)

Salary

Not Disclosed

Company Description

Leading operational food-tech platform

Job Description

Lead the AI transformation and end-to-end business intelligence for a large-scale operational business. As the first technical hire, you will build data pipelines, warehousing, and dashboards from scratch while integrating LLMs and automation tools into physical operations. This role directly impacts efficiency across multiple business lines and locations, providing a foundational capability for the entire organization.

Location

London, UK

Why this role is remarkable

• Join a high-growth business part of a larger industrial AI group that is preparing for a major public market debut.
• True greenfield opportunity as the first technical hire, building the entire data and AI infrastructure from the ground up.
• Unique challenge of bridging the gap between digital AI tools and complex, multi-site physical operations at scale.

What you will do

• Design and implement a robust BI infrastructure, including data pipelines, warehousing, and real-time dashboards for over 25 locations.
• Integrate LLM-powered workflows and automation tools to drive labor efficiency and financial decision-making across the organization.
• Partner directly with finance and operations leadership to build custom AI and data products that serve multiple expanding business lines.

The ideal candidate

• Proven experience building end-to-end data pipelines and BI infrastructure in an operational or logistics-heavy environment.
• Strong technical background in AI integration, specifically with LLMs and workflow automation tools to solve real-world problems.
• Entrepreneurial mindset with the ability to act as a solo technical lead and navigate complex, physical-world operational 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

Business Development Manager

Salary

Not Disclosed

Company Description

Blott.io Limited is a London-based technology consultancy for the AI era, partnering with ambitious leaders to build AI-native products and agentic systems for complex, regulated organisations.

Job Description

You will drive growth at Blott.io Limited by leading the full business development cycle for strategic prospects. From initial outreach to closing complex multi-stakeholder deals, you will shape market positioning and pitch narratives while partnering with senior leadership to scale the firm’s presence across fintech and other highly regulated industries.

Location

London, UK

Why this role is remarkable

• Lead the growth story of a consultancy at the forefront of the AI era, working directly with senior leadership to shape go-to-market strategies.
• Engage with an elite client roster that includes Monzo, Xapo Bank, BMW, and Samsung, supported by strategic partnerships with AWS, Nvidia, and Databricks.
• Impact a rapidly growing firm by selling high-value AI and digital transformation projects into complex, regulated sectors like financial services and technology.

What you will do

• Manage the end-to-end business development process for strategic prospects, from initial targeting and outbound outreach through to proposal negotiation and close.
• Develop and refine market positioning, proposition narratives, and tailored pitch materials to differentiate the agency’s AI and data services for target sectors.
• Partner with leadership on revenue forecasts and investment cases while coaching junior BD and SDR team members on tactics, messaging, and pipeline management.

The ideal candidate

• Has 4-6+ years of experience winning and growing business within an agency, consultancy, or professional services environment, specifically selling digital or tech services.
• Demonstrates a proven track record of meeting revenue targets for complex, multi-stakeholder deals involving senior clients and multi-discipline pitch teams.
• Possesses strong commercial acumen, including confidence with pricing and financial modelling, alongside excellent presentation skills for leading senior-level workshops and pitches.

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

Clinical Evaluation Specialist

Salary

£75k-£90k + Equity

Company Description

Well-funded healthtech SaaS startup

Job Description

You will play a pivotal role in evaluating clinical evidence for next-generation medical software seeking market entry. By bridging the gap between clinical data and technical risk, you’ll ensure that innovative healthcare technologies meet safety standards. This role offers the unique opportunity to influence how frontier medical software reaches patients globally.

Location

London, UK

Why this role is remarkable

• Join a team at the forefront of digital health innovation, working at the intersection of medicine and advanced software.
• Well-funded and backed by top-tier VCs, providing a stable yet high-growth environment in a rapidly evolving sector.
• Shape the future of healthcare by defining how software-driven medical technologies are validated and deployed at scale.

What you will do

• Critically evaluate clinical evidence and data reports for high-impact medical software submissions and documentation.
• Collaborate with multidisciplinary teams including engineering and product to optimize internal assessment processes and systems.
• Provide expert clinical insights to internal stakeholders to support global market access strategies and regulatory compliance.

The ideal candidate

• Professional background in healthcare with direct patient care experience and a relevant clinical degree.
• Proven track record in evaluating clinical data specifically for medical technologies or software-driven health solutions.
• Strong analytical mindset with the ability to interpret complex research methodologies and technical documentation with precision.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Technical Product Manager

Salary

Not Disclosed

Company Description

Taste is building the taste layer for AI, working with top-tier labs and design-forward brands to develop evaluation frameworks that decode subjective creative quality. Based in San Francisco, the team is solving the unsolved problem of measuring aesthetic intent and quality in generative AI at scale.

Job Description

As the first Technical Product Manager at Taste, you will bridge the gap between deep machine learning and high-end design. You will build evaluation systems that make subjective aesthetic quality measurable at scale. This role requires a builder's mentality to prototype experiments and define how the industry measures creative intent in generative AI.

Location

San Francisco, USA

Why this role is remarkable

• Join as the first Technical PM in a high-agency team of 14, directly shaping the product and defining the future of AI evaluation.
• Work at the unique intersection of RLHF and creative technology, solving the critical problem of measuring subjective taste in AI outputs.
• Collaborate with a tight-knit, obsessive group of outside-the-box thinkers in an in-person, high-intensity environment focused on genuine creative innovation.

What you will do

• Build and prototype evaluation frameworks that translate subjective creative and design qualities into measurable technical benchmarks for generative AI models.
• Design and execute experiments leveraging deep knowledge of reinforcement learning and post-training to improve aesthetic and creative AI output quality.
• Partner directly with the founding team and external AI labs to integrate the "taste layer" into core machine learning development cycles.

The ideal candidate

• Demonstrates deep technical knowledge of machine learning, specifically in evaluation frameworks, post-training, and RL techniques for large-scale generative models.
• Possesses an "unreasonably good taste" and proven design sensibility, likely refined at research labs, creative technology companies, or generative AI startups.
• Maintains a hands-on builder's mentality with the ability to ship prototypes and manage technical complexity without requiring traditional project management overhead.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

People Operations

Salary

£50k-£60k + Equity

Company Description

Scarlet is a Creandum-backed healthtech startup based in London that serves as Europe's only Notified Body specializing in AI and software medical device certification. By automating regulatory approvals for the world's most ambitious medical technology companies, Scarlet ensures patients receive life-saving, future-focused medical devices without unnecessary delays.

Job Description

As a People Operations specialist at Scarlet, you will move beyond traditional HR to build the technical engine of a scaling healthtech leader. You will own and optimize the internal systems—including Ashby, Rippling, and Deel—designing AI-powered workflows and automated processes to support a rapidly growing global team of high performers.

Location

London, UK

Why this role is remarkable

• Join Europe's only Notified Body specializing in AI medical devices, a mission-driven company authorized by governments to pull medical technology from the future.
• Work in a high-growth environment backed by Creandum and Entrepreneur First, featuring product-market fit, exponentially growing revenue, and a team of 65 scaling fast.
• Gain unparalleled ownership over global people systems, moving from theory to execution as you build the infrastructure for an international, high-performing organization.

What you will do

• Act as the super-user for Scarlet's ATS and HRIS (Ashby, Rippling, and Deel), building AI-integrated workflows and automations that make foundational data systematic.
• Empower hiring managers globally by creating the tooling, templates, and scheduling frameworks required to source and hire top-tier talent at a rapid pace.
• Design and execute world-class onboarding journeys, managing employee contracting, EOR relationships, and multi-jurisdictional payroll to ensure every new teammate is productive from day one.

The ideal candidate

• Has 1-3 years of experience in operations or startup environments, demonstrating a first-principles approach and a hunger for high-stakes ownership in a fast-growth setting.
• Possesses a "builder" mindset rather than a traditional HR background, instinctively reaching for LLMs and AI automation tools to solve complex business operations.
• Demonstrates exceptional communication skills and experience with modern HR tools like Ashby or Deel, particularly within multi-jurisdictional or high-growth startup 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

Account Executive – UK & EU

Salary

Not Disclosed + Equity

Company Description

StackOne is a $24M raised integration infrastructure provider for AI agents, backed by GV and Workday Ventures. Based in London, the company enables AI agents to take real actions across enterprise stacks through 430+ connectors and semantic tool discovery, serving a global market of AI-native startups and SaaS platforms.

Job Description

As an Account Executive at StackOne, you will own the UK and EU territory, driving revenue growth for a category-defining AI integration platform. You’ll manage full-cycle sales from inbound leads to complex outbound deals, selling highly technical API-first solutions to engineers and CTOs while collaborating directly with the founding team.

Location

London, UK

Why this role is remarkable

• Build the future of agentic integrations at a GV-backed startup that has already raised $24M from top-tier enterprise investors like Workday Ventures.
• Own a high-momentum territory with existing customers and brand recognition, operating with significant autonomy and direct access to the CEO and founding team.
• Work alongside a world-class team of veteran engineers and leaders from tech giants including Google, Microsoft, and Oracle in a fast-paced environment.

What you will do

• Lead full-cycle sales motions for UK-EU accounts, targeting AI-native startups and enterprise teams embedding AI into their core products.
• Execute and iterate on outbound strategies, including account targeting and technical messaging, to build a robust pipeline of flagship lighthouse accounts.
• Deliver expert product demos that articulate the value of APIs, integration architecture, and StackOne’s unique semantic tool discovery and prompt injection defense.

The ideal candidate

• Brings 2–5 years of B2B SaaS closing experience with a proven track record of exceeding revenue targets in high-growth startup environments.
• Possesses deep technical fluency, comfortable selling APIs or developer tools to CTOs and engineering leaders independently without needing daily oversight.
• Demonstrates a high-ownership mindset and the ability to navigate complex sales cycles involving AI platforms, security compliance, and technical validation.

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 Social Media Manager

Salary

Not Disclosed

Company Description

Culture-first sports content studio

Job Description

You will lead the day-to-day operations for a major professional sports league’s content strategy across Europe and the Middle East. Managing creators and editors, you’ll oversee social-first production for 9:16 platforms. From editorial planning to hands-on editing, you will drive audience growth and engagement for fans aged 14 to 25.

Location

London, UK

Why this role is remarkable

• Lead the social-first strategy for one of the most prestigious properties in global professional sports across multiple international markets.
• Join a rapidly scaling studio that leverages proprietary technology and a worldwide network of creators to land content natively.
• Play a senior-level role on a marquee founding account with significant influence over creative direction and audience growth.

What you will do

• Own the delivery of comprehensive content plans across four key markets from initial brief through to final publication.
• Act as the primary senior lead for the client, managing weekly operational rhythms, reporting, and high-level creative conversations.
• Lead hands-on social output, including platform-native formats, editorial calendars, and reactive content creation during live sporting moments.

The ideal candidate

• Proven experience in social media or account management within a creative agency, sports rights holder, or major brand.
• Deep expertise in TikTok-first content and youth-focused audiences, including proficiency with mobile editing tools like CapCut.
• Highly organized professional capable of managing moving parts across multiple timezones and the high-pressure pace of live sports.

===

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, Backend

Salary

$160k-$200k + Equity

Company Description

Numero is a YC-backed fundraising platform that has helped political campaigns and nonprofits raise over $10B. Backed by investors like 776 and Initialized Capital, Numero provides an all-in-one CRM, payment processing, and communications toolkit that scales to serve thousands of campaigns during the most critical moments of national election cycles.

Job Description

Join Numero as a Senior Backend Engineer to architect systems handling millions of daily requests and billions of records. You will scale our proprietary NumeroQL engine, integrate advanced AI agents into our product suite, and optimize high-volume payment processing. It’s a high-impact role building the infrastructure that powers consequential national campaigns.

Location

Remote, USA

Why this role is remarkable

• Work on mission-critical systems where your code directly impacts thousands of campaigns and helps raise billions of dollars for important causes.
• Join a high-growth, YC-backed team with top-tier investors like 776 and Initialized Capital, operating at a scale few startups ever reach.
• Be at the forefront of AI-native development, utilizing agentic coding workflows and building LLM-powered features like Numero Agents on a proprietary Ruby stack.

What you will do

• Architect and scale backend systems using Ruby on Rails, Postgres, and OpenSearch to support billions of records and high-frequency election traffic.
• Develop and refine Numero Agents, a suite of AI-powered tools that allow clients to manage their platform using sophisticated natural language commands.
• Optimize complex payment processing and tandem fundraising features, ensuring high conversion and precise compliance reporting across Stripe and PayPal.

The ideal candidate

• Possesses 6+ years of experience building and scaling user-facing backend systems with a deep, instinctive understanding of production performance and cost.
• Demonstrates high proficiency in SQL and relational data modeling at scale, with experience managing bottlenecks and indexing in high-volume environments.
• Maintains a bias toward high-quality architectural patterns and is eager to push the frontier of AI-integrated engineering workflows using tools like Cursor.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

$230k-$250k + Equity

Company Description

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

Job Description

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

Location

New York/San Francisco, USA or Remote

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Title:
Full Stack Engineer (€100K–€160K + Equity) at Maze - AI-native Cybersecurity Startup

Job Title

Full Stack Engineer

Salary

€100K–€160K + Equity

Company Description

Maze - Series A cybersecurity startup backed by Theory Ventures and Cherry Ventures

Job Description

Maze is revolutionizing cybersecurity by building AI agents that autonomously investigate and resolve cloud vulnerabilities. As an early Full Stack Engineer, you will own the end-to-end product experience from React UIs to Python APIs. You'll join an elite team of Big Tech veterans to build high-impact, AI-native solutions for Fortune 200 customers.

Location

Remote, Europe

Why this role is remarkable

• Significant technical ownership with your own API layer, allowing for rapid deployment without dependencies or blockers while shaping the future of AI in security.
• Strong financial backing with $31M total raised from top-tier investors like Theory Ventures and a founding team with a track record of successful IPOs and acquisitions.
• Opportunity to build an AI-native product from the ground up using a modern, carefully selected tech stack including FastAPI, TanStack, and Temporal.

What you will do

• Lead the development of end-to-end features, from crafting intuitive React/TypeScript interfaces to implementing scalable backend services in Python.
• Design and optimize performant REST APIs that power complex security workflows and integrate seamlessly with autonomous AI agents.
• Collaborate directly with leadership to establish engineering standards and influence architectural decisions as the platform scales to support global enterprises.

The ideal candidate

• 6+ years of professional full-stack experience with deep expertise in React, TypeScript, and building production-grade RESTful APIs.
• Proven track record in B2B SaaS environments with a strong intuition for database performance and query optimization at scale.
• Startup-ready mindset with a bias for action, capable of navigating ambiguity and delivering high-quality code at high velocity.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Game Engineer

Salary

£90k–£130k + Equity

Company Description

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

Job Description

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

Location

London, UK (Remote Friendly)

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

$80k-$150k + Bonus

Company Description

cloro is a bootstrapped API platform that hit $1M ARR in under three months by extracting structured data from AI models like ChatGPT and Perplexity. Handling over 500M monthly API calls, we solve the internet’s hardest data extraction problems for global AI and SEO leaders.

Job Description

As our first employee, you will build the core infrastructure powering 500M+ monthly API calls. Working directly with founders, including an ex-Glovo GM, you’ll own everything from scraping pipelines to Kubernetes scaling. This role is for a high-ownership generalist ready to solve the internet’s hardest data extraction problems at scale.

Location

Remote

Why this role is remarkable

• Extreme Traction: Join a company that reached $1M ARR in just three months, handling over 500M monthly API calls for top global AI and SEO firms.
• Founder Pedigree: Work directly with Co-founder Ricardo, who scaled Glovo Portugal from 0 to 120+ employees and has successfully exited two previous companies.
• Incredible Upside: Benefit from a performance-based bonus system that can double your base salary, coupled with the influence of being employee number one.

What you will do

• Design and scale high-throughput infrastructure using Kubernetes and queue systems to handle massive API request volumes with 99% reliability.
• Build and maintain complex web scrapers that extract structured data from sophisticated AI interfaces like Gemini, ChatGPT, and search engines.
• Make critical architectural decisions across the backend and frontend to shape the product roadmap and maintain engineering excellence as the company scales.

The ideal candidate

• 4-8 years of software development experience with a heavy focus on backend systems, infrastructure, and distributed architectures.
• Proficiency in Node.js, Python, and Kubernetes, with a proven ability to manage high-volume queue systems and complex data pipelines.
• A founder attitude with experience in international or US-based companies, demonstrating the ability to take full ownership and move fast in an async 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 Backend Engineer, Recommendations

Salary

$190K–$250K + Equity

Company Description

Raya is a profitable, 100-person membership-based social platform for creatives, artists, and cultural leaders. The company focuses on fostering quality, in-person interactions through a curated digital community and is currently building next-generation discovery and personalization features using cutting-edge technologies like Go, Kubernetes, and integrated LLM frameworks.

Job Description

Join Raya as a Senior Backend Engineer to lead the Recommendations team. You will architect and build production ranking services that power how a global community of creatives discover each other. This high-impact role involves integrating AI-driven discovery features and scaling backend infrastructure to enhance meaningful human connections for thousands of members.

Location

Remote

Why this role is remarkable

• Own the core discovery engine of a highly exclusive social platform, directly influencing how thousands of elite creatives and cultural leaders connect globally.
• Join a profitable, 100-person company that offers the stability of a successful business with the fast-paced innovation of a high-growth startup.
• Work with a modern tech stack including Go and Kubernetes, while actively developing and deploying production-level LLM-powered features and AI discovery tools.

What you will do

• Architect, build, and lead key components of Raya’s backend services, specifically focusing on production ranking and recommendation systems.
• Collaborate with cross-functional teams including UX designers and data scientists to ensure personalized discovery features are user-centric and scalable.
• Drive operational excellence across the full SDLC, implementing CI/CD practices and navigating the deployment of machine learning models into production.

The ideal candidate

• Has 6+ years of experience in modern software development with a proven track record of delivering scalable systems using Golang.
• Possesses deep expertise in building and scaling production recommendation systems, ranking algorithms, or personalization features for consumer-facing products.
• Demonstrates a "bias toward shipping" and enthusiasm for emerging AI frameworks, with the ability to iterate quickly in a fast-moving 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

Engineering Manager, Platform - Cloud Infrastructure

Salary

$241.5K - $284K + Equity

Company Description

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

Job Description

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

Location

New York / San Francisco, USA (Remote Optional)

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Presentation Designer — AI Training & Evaluation

Salary

$30–$90/hr

Company Description

Global AI-driven data platform

Job Description

Join a pioneering team improving how AI models generate professional visual content. You will act as a design expert, crafting detailed creative briefs and providing high-fidelity evaluations of AI-generated presentations. Your professional judgment in PowerPoint design will directly influence the next generation of AI-driven productivity tools for global enterprises.

Location

Remote

Why this role is remarkable

• Fully remote, asynchronous engagement with flexible hours providing excellent work-life balance.
• Well-funded startup backed by top-tier VCs focused on the frontier of AI model alignment.
• Unique opportunity to shape AI's understanding of aesthetics and professional design standards at scale.

What you will do

• Create professional-grade slides and design rubrics to calibrate AI model performance and quality.
• Write precise creative briefs and provide structured, actionable feedback on AI-generated design outputs.
• Evaluate complex visual hierarchies and typography within Microsoft PowerPoint to ensure professional standards.

The ideal candidate

• At least 5 years of professional presentation design experience with a focus on corporate or financial services.
• Absolute mastery of Microsoft PowerPoint, including layout, typography, and technical constraints.
• Exceptional ability to articulate design logic and critique through clear, written English.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Software Support Engineer

Salary

Not Disclosed

Company Description

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

Job Description

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

Location

Remote

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Sr. Software Engineer (Backend)

Salary

Not Disclosed

Company Description

Zenarate is a Palo Alto-headquartered, $18M venture-backed AI simulation platform led by Volition Capital, delivering over 16 million simulations for Fortune 500 leaders like Capital One and Bank of America.

Job Description

As a Sr. Software Engineer (Backend) at Zenarate, you will architect and scale real-time AI voice systems that power lifelike conversation simulations for enterprise contact centers. You'll build low-latency pipelines and microservices using Python and React, integrating cutting-edge LLMs and voice AI to transform how millions of front-line agents are trained globally.

Location

Remote, India

Why this role is remarkable

• Work at the forefront of conversational AI, building real-time systems that orchestrate speech-to-text, text-to-speech, and LLM providers for millions of users.
• Join a high-growth leader backed by $18M in funding from Volition Capital, already serving massive enterprise clients like Verizon, United Healthcare, and Capital One.
• Experience true technical ownership by designing critical low-latency infrastructure while enjoying a fully remote culture that prioritizes well-being and a healthy work-life balance.

What you will do

• Architect and scale real-time voice agent infrastructure using WebSocket-based streaming, session management, and low-latency audio/event pipelines.
• Design and maintain microservices in Python (Django/Flask) that integrate with agentic frameworks and voice AI services like Deepgram or ElevenLabs.
• Collaborate with ML engineers and product teams to translate complex business requirements into robust, high-performance APIs for regulated enterprise industries.

The ideal candidate

• 5-8 years of backend engineering experience with strong proficiency in Python and frameworks like Django or Flask.
• Deep expertise in real-time communication protocols such as WebSockets, WebRTC, or gRPC streaming for high-load simulation workloads.
• Proven track record operating distributed systems on cloud platforms (AWS, Azure, or GCP) using containerization tools like Docker and Kubernetes.

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 Operations Engineer

Salary

Not Disclosed

Company Description

Plentific Ltd is a leading property technology scale-up that provides a comprehensive SaaS platform and marketplace for the real estate industry. By connecting property managers, residents, and service providers, Plentific Ltd digitises the entire maintenance lifecycle, driving efficiency and transparency for large-scale housing providers across the UK and internationally.

Job Description

As a Platform Operations Engineer at Plentific Ltd, you will play a critical role in maintaining and scaling the infrastructure powering modern property management. You’ll collaborate with engineering teams to optimize cloud-native systems, automate deployment pipelines, and ensure the high availability of services that connect landlords, residents, and service providers seamlessly.

Location

Remote, UK

Why this role is remarkable

• Join a high-growth proptech leader that is fundamentally digitising the property management sector through a unique combination of SaaS and a vetted contractor marketplace.
• Work in a flexible, remote-first environment within the UK, enjoying high autonomy while contributing to a platform that impacts thousands of residents and property managers daily.
• Engage with a modern, cloud-native tech stack, tackling complex scalability and reliability challenges as the company expands its footprint across Europe and North America.

What you will do

• Manage and scale cloud infrastructure using AWS, ensuring optimal performance, security, and cost-efficiency across production and staging environments.
• Develop and maintain robust CI/CD pipelines to streamline software delivery, enabling product teams to deploy updates safely and frequently.
• Monitor system health and performance using advanced observability tools, proactively identifying bottlenecks and leading incident response efforts to maintain service uptime.

The ideal candidate

• Strong background in Platform Engineering or SRE with deep expertise in managing AWS environments and managing infrastructure-as-code using tools like Terraform.
• Proven experience working with container orchestration, particularly Kubernetes, to manage microservices at scale in a fast-paced production environment.
• Proficiency in scripting or programming with languages such as Python or Go to automate repetitive tasks and build internal tooling for 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

Senior AI Engineer

Salary

$169k-$200k + Equity

Company Description

Talkspace, Inc. is a publicly traded leader in online behavioral healthcare that has served over two million users. Through its lean Sentia AI team, the company is building tee.care, an autonomous multi-agent system designed to provide adaptive, long-term mental health guidance by combining Large Language Models with reinforcement learning.

Job Description

Join the Sentia AI team at Talkspace, Inc. to design and scale tee.care, an autonomous behavioral health guide. You will own the reinforcement learning domain, developing adaptive intervention strategies that optimize for real patient wellbeing. Working in a high-stakes, mission-driven context, you’ll bridge advanced AI reasoning with scalable, ethical, and empathetic user interactions.

Location

Remote, USA

Why this role is remarkable

• Own a complete technical domain: You will lead the reinforcement learning strategy for tee.care, covering both classical behavioral interventions and modern RLHF/alignment work.
• High-impact mission: Build autonomous systems that directly improve mental health outcomes for millions, working at the intersection of AI safety, ethics, and behavioral economics.
• Startup speed with public scale: Join a lean, four-person "Sentia AI" squad within a publicly traded company, offering significant equity and rapid development cycles.

What you will do

• Design and implement multi-agent architectures for tee.care, including cognitive planning modules, memory/retrieval systems, and complex tool-use orchestration.
• Apply advanced reinforcement learning (RL) and control theory to develop adaptive, long-term intervention strategies that maximize positive user health outcomes.
• Orchestrate LLM fine-tuning and deployment pipelines, focusing on empathetic communication, reasoning quality, and real-time production monitoring for behavioral drift.

The ideal candidate

• Has 5+ years of production software experience with at least 3+ years specifically implementing and deploying autonomous systems or complex machine learning models.
• Demonstrates deep expertise in Reinforcement Learning (RL), including reward modeling, PPO/DPO, and building robust simulation environments for agent policy testing.
• Possesses mastery of Python and MLOps, with a proven track record of shipping maintainable, high-availability code within cloud-native (AWS/GCP) and containerized 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

Senior Software Engineer

Salary

Not Disclosed

Company Description

Oversee is a high-growth travel technology company using AI to automate corporate travel management for Fortune 500 companies. Building on exponential YoY revenue growth, Oversee is developing AgentSee, an AI assistant that uses LLMs and agentic reasoning to handle complex workflows and solve a $17B global problem.

Job Description

You will join the AI platform team to build production-grade AI agents for global enterprises. Working at the intersection of LLMs and large-scale travel data, you'll design scalable backend services and agentic workflows. This role offers the freedom to shape the future of business travel using production AI systems.

Location

Poland

Why this role is remarkable

• Build production-grade AI agents (AgentSee) that solve real-world problems for global Fortune 500 enterprises, moving beyond simple demos into complex agentic reasoning.
• Join a high-growth startup experiencing exponential YoY revenue growth and tackling a massive $17B market opportunity in corporate travel automation.
• Work in a highly collaborative, fast-paced environment with an all-Polish engineering team, enjoying significant autonomy to shape both technical architecture and product direction.

What you will do

• Design and scale AI-driven systems powering virtual agent capabilities, including conversational reasoning, retrieval systems (RAG), and tool-calling frameworks.
• Develop high-performance backend services in Python and Django, integrating complex APIs like Amadeus and Sabre to support real-time decision-making.
• Own the architecture for distributed AI applications while continuously improving model reliability, observability, and evaluation frameworks in a Kubernetes environment.

The ideal candidate

• Has 5+ years of production software engineering experience with a strong background in Python and designing scalable backend applications.
• Possesses proven hands-on experience building or integrating LLM products, specifically using frameworks like LangChain, LangGraph, or LlamaIndex.
• Is a proactive problem-solver based in Poland who is excited about agentic workflows, RAG pipelines, and solving performance bottlenecks in high-scale 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

Forward Deployed Engineer

Salary

Under $40/hr

Company Description

StrataBlue is an AI systems and consulting firm that builds production-ready AI solutions, including voice agents and workflow automation, for global clients. Moving beyond slide decks and prototypes, the firm delivers complex, working systems using a modern stack like n8n and Supabase to solve real-world business challenges.

Job Description

You will sit at the intersection of client consulting and production engineering, transforming vague requests into functional AI systems. You will scope projects, build complex workflows using n8n and Supabase, and direct an overseas development team to ensure delivery. This high-autonomy role requires a builder who unblocks others and thrives in a fast-paced environment.

Location

Remote

Why this role is remarkable

• Work on the bleeding edge of AI by building and deploying production-grade voice agents and automated workflows for diverse global clients.
• Experience extreme autonomy as a "builder-consultant" who owns the entire lifecycle from initial scoping calls to final implementation and system visibility.
• Scale your impact by directing an overseas dev team, managing project delivery, and building essential internal infrastructure like centralized logging and alerting.

What you will do

• Lead technical scoping calls with clients to translate fuzzy business requirements into detailed technical specifications for the engineering team.
• Build production-ready AI systems including 35+ node n8n workflows, Supabase backends, and sophisticated voice agent setups using Retell or Trillet.
• Manage and mentor an overseas development team by writing clear technical tickets, performing code reviews, and ensuring consistent delivery standards.

The ideal candidate

• Has 3+ years of professional experience shipping full-stack products and is comfortable working across every layer of the modern technical stack.
• Demonstrates exceptional communication skills with C2-level English, capable of managing client relationships and pushing back on unrealistic project scopes.
• Thrives in high-velocity environments like agencies or consultancies and can move from debugging production issues to writing actionable development tickets.

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

Finance & Consulting Expert (AI Training)

Salary

$60-$130/hr

Company Description

Venture-backed AI evaluation platform

Job Description

You will train and evaluate advanced AI models on complex business logic, financial modeling, and strategic reasoning. This involves creating high-standard professional materials, defining evaluation rubrics, and judging model outputs. You will help bridge the gap between human expertise and machine intelligence, ensuring AI systems meet the rigorous standards of top-tier professional services.

Location

Remote (Global)

Why this role is remarkable

• Influence the development of next-generation AI models by applying high-level expertise to complex financial and strategic tasks.
• Benefit from a fully remote, asynchronous engagement backed by top-tier venture capital, offering professional flexibility and competitive pay.
• Join an elite network of professionals from prestigious backgrounds dedicated to elevating the quality and reasoning of AI outputs.

What you will do

• Develop expert-level prompts and gold-standard answers for corporate finance, strategy, and valuation tasks to train AI models.
• Create and review sophisticated PowerPoint presentations and financial documents to establish high-quality benchmarks for model performance.
• Evaluate AI-generated outputs against detailed rubrics, providing structured written feedback to improve model reasoning and accuracy.

The ideal candidate

• Has 3+ years of experience in management consulting, investment banking, private equity, or high-standard corporate finance environments.
• Demonstrates exceptional hands-on PowerPoint skills and the ability to translate complex data into clear, decision-useful visual narratives.
• Possesses strong analytical judgment and the ability to articulate precise professional standards in structured, fluent written English.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Engineering Lead

Salary

£120k-£150k + Equity

Company Description

Attio.com is an early-stage tech company building the next generation of CRM for the AI-native era. With an exceptionally high bar for quality and a focus on real-time infrastructure, Attio.com is on an incredible trajectory to reinvent how millions of people work through beautiful, effortless, and powerful software.

Job Description

Attio.com is reinventing the CRM for the AI-native era. As an Engineering Lead, you will balance high-caliber individual contribution with leadership of a focused engineering team. You'll work across the stack to build real-time infrastructure and an effortless frontend, driving technical architecture and product decisions that impact millions of users worldwide.

Location

Remote

Why this role is remarkable

• Join an early-stage tech company on an incredible trajectory, building the foundational infrastructure for AI-native workflows.
• Enjoy a high-trust environment where you lead a talented, small team while maintaining a significant hands-on technical impact.
• Experience a culture that prizes rigour and quality, supported by top-tier benefits and memorable global team off-sites.

What you will do

• Build and ship end-to-end features using a modern stack including Node.js, TypeScript, Go, GCP, and React.
• Recruit, mentor, and grow a top-class engineering team responsible for a critical area of the Attio.com product.
• Design and evolve a scalable technical architecture to support rapidly increasing user demand and complexity.

The ideal candidate

• Proven experience designing and scaling secure, reliable backend systems or building complex, high-performance frontends.
• Deep technical expertise in Node.js, TypeScript, Go, or React, coupled with strong knowledge of modern cloud architectures like GCP.
• Demonstrated aptitude for leadership, with the ability to communicate complex technical ideas and influence product-wide decisions.

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

£90k-£130k + Equity

Company Description

Junction is a venture-backed healthtech startup, supported by Creandum, Point Nine, and YC, building the infrastructure layer for diagnostic healthcare. They streamline patient data across lab testing and wearables, enabling personalized care for millions by making clinical information accessible and automated for modern healthcare organizations.

Job Description

As a Product Engineer at Junction, you will design and ship full-stack features that transform how millions interact with diagnostic data. Working in a tight-knit team of six, you'll bridge the gap between complex backend infrastructure and intuitive user experiences, directly impacting patient outcomes while scaling a platform that processes millions of data points every second.

Location

Remote

Why this role is remarkable

• Scale life-changing technology that already streams data from 3M+ wearables every second and facilitates 4M+ lab tests across the United States.
• Join a high-growth environment backed by elite investors like Creandum, 20VC, and YC, with company revenue quadrupling in the last year alone.
• Work with a world-class engineering team from Babylon, SpaceX, and Monzo on the mission-critical challenge of making healthcare proactive and affordable.

What you will do

• Build and own end-to-end full-stack features for customer-facing dashboards that allow healthcare providers to self-serve and order lab tests.
• Architect the next version of a diagnostics API designed to scale from 4 million to 40 million tests within the next twelve months.
• Collaborate directly with customers to understand product usage, refining technical challenges into elegant software solutions that significantly reduce patient medical costs.

The ideal candidate

• Has 3+ years of experience in early-stage startup environments where you actively influenced product direction rather than just executing predefined tickets.
• Possesses strong proficiency in building API products and is comfortable working across the full stack with Python, Go, or TypeScript.
• Demonstrates deep product judgment and a focus on outcomes, with the ability to turn ambiguous healthcare constraints into clear, actionable technical 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

AI Product Engineer

Salary

$150k-$250k + Equity

Company Description

Crux is a $77M-funded capital platform for the clean energy economy, backed by Andreessen Horowitz and Lowercarbon Capital. The firm modernizes capital deployment for sustainable infrastructure, having facilitated billions in transactions and achieved profitability while scaling its AI-forward engineering team to accelerate the global transition to clean energy.

Job Description

As the first AI Product Engineer at Crux, you will bridge the gap between engineering, legal, and finance to revolutionize clean energy transactions. You will design and ship user-facing LLM products from scratch, building the frameworks for automated diligence and complex financial workflows that power the future of sustainable infrastructure.

Location

Remote, USA

Why this role is remarkable

• Join a high-growth fintech that is already profitable and has facilitated billions of dollars in clean energy transactions over just two years.
• Be the first dedicated AI hire with massive ownership over the AI stack, picking your own tools and frameworks to build 0->1 products.
• Work at a mission-driven company backed by elite investors like a16z and QED, operating at the intersection of climate tech and finance.

What you will do

• Collaborate directly with customers and legal teams to co-design and build AI-powered diligence tools for clean energy financing.
• Architect and ship end-to-end full-stack features using NextJS, React, and Typescript, while iterating on LLM performance through CI/CD evals.
• Establish the engineering culture and internal frameworks for how Crux develops, tests, and deploys high-quality AI products at scale.

The ideal candidate

• 4+ years of full-stack experience with the ability to build products end-to-end, ideally with fluency in the NextJS, React, and Typescript stack.
• Proven track record of shipping user-facing LLM products and AI agents, with a deep understanding of prompting and iterating via evals.
• Startup veteran who thrives in fast-paced environments, possesses an 80/20 mindset, and can move from concept to execution in half the usual time.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

AI Developer (Azure-Focused)

Salary

Not Disclosed

Company Description

worx-ai is an innovative technology firm specializing in enterprise-scale AI solutions built on the Microsoft Azure ecosystem. The company focuses on deploying cutting-edge Generative AI and Retrieval-Augmented Generation (RAG) applications, helping organizations leverage Azure OpenAI and advanced machine learning models to automate complex business processes and drive intelligence at scale.

Job Description

As an AI Developer at worx-ai, you will lead the design and deployment of sophisticated AI/ML solutions within the Azure cloud environment. You will build RAG-based applications, optimize LLMs, and implement robust MLOps pipelines. This role is pivotal in bridging the gap between raw data and actionable enterprise intelligence using Azure’s premier AI services.

Location

Remote (US, Canada, India)

Why this role is remarkable

• You will work at the cutting edge of Generative AI, implementing RAG solutions and AI agents using the full suite of Azure OpenAI and Cognitive Services.
• worx-ai provides an environment where you can scale AI solutions for enterprise-level impact, moving beyond prototypes to production-ready cloud-native architectures.
• The role offers significant ownership over the MLOps lifecycle, allowing you to define best practices for automated model testing, monitoring, and retraining at scale.

What you will do

• Design and deploy Generative AI and LLM-powered applications utilizing Azure OpenAI Service and Retrieval-Augmented Generation (RAG) frameworks.
• Develop and maintain automated machine learning pipelines (MLOps) using Azure DevOps and Azure Machine Learning for scalable model management.
• Integrate complex AI solutions with cloud-native services including Azure Functions, Kubernetes (AKS), and Azure AI Search to support high-performance microservices.

The ideal candidate

• Possesses over 5 years of professional experience in AI/ML development, with a deep mastery of Python and frameworks like PyTorch or TensorFlow.
• Demonstrates extensive hands-on expertise with the Azure ecosystem, specifically Azure Machine Learning, Azure OpenAI, and cloud-native integration tools like AKS.
• Holds a strong background in MLOps and CI/CD, with proven experience building and deploying enterprise-scale AI applications and secure data processing 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.

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

Staff Engineer

Salary

Not Disclosed

Company Description

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

Job Description

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

Location

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

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

VP of Data & AI / Head of AI/ML

Salary

£85k + Equity

Company Description

Seed-stage B2B AI platform

Job Description

As the first AI/ML hire, you will lead the data function, building production systems for entity resolution on 800M+ records and NLP extraction from business conversations. Working alongside the CTO, you’ll ship core intelligence that identifies high-intent buyer signals and facilitates double opt-in introductions for a next-generation sales engine.

Location

Remote (London/France preferred)

Why this role is remarkable

• Opportunity to lead the entire AI/ML function as the first dedicated hire in a high-growth startup environment.
• Well-funded by experienced founders with a track record in algorithmic matching and quant finance.
• Significant seed-stage equity offering a massive upside as you build a data moat that defines the product’s value.

What you will do

• Build and own production ML systems for entity resolution, signal ranking, and NLP on unstructured business data.
• Take full ownership of the data pipeline stack, from initial ingestion to delivering high-impact model outputs.
• Collaborate directly with the CTO to scale the AI engine and eventually build and lead a dedicated team.

The ideal candidate

• 5-8 years of experience building production ML systems (not research) with expertise in NLP or entity resolution.
• Proven background in Fintech or B2B sales intelligence, understanding buyer intent signals and contact graphs.
• Experience in 0-to-1 environments as an early ML hire who is comfortable writing code and shipping fast.

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

Multimodal AI Research Engineer

Salary

Not Disclosed

Company Description

Series B-backed AI research lab

Job Description

As a Research Engineer, you will develop state-of-the-art multimodal foundation models to power next-generation interactive digital interfaces. You'll focus on the intersection of audio, vision, and language to create low-latency, expressive systems. This role offers the unique opportunity to conduct high-level research while shipping impactful technology to a global user base at scale.

Location

San Francisco, USA; London, UK; or Remote

Why this role is remarkable

• Work on cutting-edge foundation models that bridge generative video and real-time interaction at the frontier of AI.
• Join a well-funded Series B startup backed by premier global venture capital firms with a high-growth trajectory.
• Transition research directly into production systems, seeing your work reach millions of users rather than staying in papers.

What you will do

• Research and develop multimodal conversational models to control expressive digital behaviors in real-time with sub-second latency.
• Fine-tune audio-visual foundation models to improve responsiveness, controllable expressions, and task-specific performance.
• Partner with applied machine learning teams to migrate research prototypes into high-performance, scalable production pipelines.

The ideal candidate

• PhD or equivalent research experience in Deep Learning, specializing in Large Multimodal Models or Generative AI.
• Expert-level proficiency in PyTorch and experience building complex deep learning pipelines for audio or video understanding.
• Proven track record of high-impact research, ideally with a history of publications at top-tier venues like NeurIPS, CVPR, or ICLR.

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

$160k-$200k + Equity

Company Description

TransVoix is a high-growth voice infrastructure platform building real-time multilingual translation that preserves vocal identity. After generating massive interest at CCW Vegas 2026 from industry leaders like Sinch and Five9, TransVoix is scaling its carrier-grade audio pipeline and launching a public SDK for global enterprise developers.

Job Description

As the first engineering hire at TransVoix, you will architect and scale a real-time audio pipeline serving enterprise contact centers and AI voice agents. You’ll own the transition to AWS, harden multi-tenant security, and design the versioned SDK that global developers will depend on for years.

Location

Phoenix, USA

Why this role is remarkable

• Incredible market pull: Major industry players including Sinch and Five9 are already requesting demos and SDK access following a breakout showing at CCW Vegas 2026.
• High-stakes ownership: You are the founding engineer with a clear path to CTO, owning everything from sub-second latency audio pipelines to the cryptographic voice provenance infrastructure.
• Advanced tech stack: Work with a sophisticated async Python/FastAPI backend and real-time audio components that outperform standard solutions, maintaining speaker identity across bidirectional translation.

What you will do

• Design and maintain the core voice pipeline ensuring sub-second latency and high-fidelity vocal cloning across 15+ languages using STT, translation, and TTS.
• Architect the public-facing developer SDK and sandbox environment, establishing the permanent API contracts that enterprise customers will use to integrate TransVoix capabilities.
• Lead the infrastructure migration to AWS using Terraform while implementing C2PA cryptographic provenance and SOC 2-ready multi-tenant security patterns across the platform.

The ideal candidate

• Deep production experience building carrier-grade voice pipelines, specifically handling WebRTC, WebSocket audio framing, and low-latency jitter management at an infrastructure-grade scale.
• Mastery of asynchronous Python (FastAPI/asyncio) and React/TypeScript, with a history of shipping stable, versioned APIs or SDKs for external developer consumption.
• Architectural mindset focused on multi-tenant security and Infrastructure as Code, capable of leading build-vs-buy decisions for self-hosted model inference and GPU infrastructure.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Research Engineer — Video Diffusion

Salary

Not Disclosed

Company Description

Tavus is a $64M Series B AI research lab backed by Sequoia, CRV, and Y Combinator, building real-time AI humans. Headquartered in San Francisco with a global research presence, Tavus develops the Phoenix-4 model to power conversational video interfaces that see, hear, and respond with human-like presence.

Job Description

As a Research Engineer at Tavus, you will architect and train the video diffusion models powering our real-time facial rendering pipeline. Working under the leadership of Ioannis Patras, you'll bridge the gap between cutting-edge research and production, shipping models that achieve emotionally accurate expressions with sub-second latency for global enterprises.

Location

Remote

Why this role is remarkable

• Join a well-funded Series B lab backed by premier investors like Sequoia and CRV to define the future of conversational AI.
• See your research reach production immediately through Tavus’s platform, powering real-time face-to-face AI interactions for major companies.
• Work alongside world-class experts like Head of Research Ioannis Patras in a high-impact, globally distributed research environment.

What you will do

• Design and implement novel architectures for video diffusion and flow-matching models specifically for high-fidelity facial generation.
• Develop and optimize large-scale training loops to advance the capabilities of the Phoenix-4 model for emotionally accurate rendering.
• Ship high-performance models to production, ensuring sub-second inference latency for real-time conversational video interfaces.

The ideal candidate

• Demonstrates hands-on experience building, training, and scaling diffusion or flow-matching models specifically for video or facial synthesis.
• Possesses strong research engineering skills with the ability to implement complex neural architectures and manage large-scale training data.
• Brings broader knowledge of neural rendering techniques such as Gaussian Splatting, NeRFs, or advanced face synthesis methods.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

===

Job Title

Full-Stack Engineer

Salary

Not Disclosed

Company Description

Early-stage NYC tech startup

Job Description

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

Location

New York City, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

===

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

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

Job Title

Full-Stack Software Engineer

Salary

Not Disclosed

Company Description

Fast-growing voice AI startup

Job Description

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

Location

Remote

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

How to Apply:

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Engineer / CTO

Salary

Not Disclosed + Equity

Company Description

ClearStack is a pre-seed London startup founded by an ex-Blackstone executive, building AI-driven treasury and cash management infrastructure for the private markets and alternatives space.

Job Description

As the first technical hire, you will build ClearStack’s platform from zero to one. Working directly with an ex-Blackstone founder, you'll own the architecture, backend, and deployment of tools automating complex treasury workflows for institutional investors. This role defines our technical foundation and strengthens our position as we head into fundraising.

Location

London, UK

Why this role is remarkable

• Build from 0-to-1 with significant ownership, defining the technical roadmap and architecture for a platform disrupting manual private market processes.
• Partner directly with a founder from Blackstone, gaining deep domain expertise and visibility into the institutional investment and alternatives landscape.
• Secure substantial equity—ranging from a founding engineer stake up to 15%—at a critical pre-fundraising stage with high upside potential.

What you will do

• Architect and build the initial product from scratch, managing everything from backend infrastructure to frontend implementation and automated data workflows.
• Collaborate on product strategy and roadmap, translating complex treasury and cash management problems into scalable technical solutions for institutional clients.
• Establish engineering best practices, deployment pipelines, and a high-performance culture as you eventually help scale the technical team from the ground up.

The ideal candidate

• You have 3-7 years of experience in early-stage startups or founding engineer roles, with a proven track record of shipping production-ready products.
• You possess strong full-stack or backend capabilities and the ability to work autonomously across ambiguous, complex technical challenges.
• You have an exceptional academic background from a top-tier university or equivalent deep CS foundations that enable you to build robust, scalable 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

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

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

Senior Full Stack Developer

Salary

Not Disclosed + Equity

Company Description

AI-powered EdTech SaaS platform

Job Description

Join a fast-growing EdTech startup as a Senior Full Stack Developer, building an AI-driven student engagement platform. You will own features end-to-end using NestJS, React, and TypeScript, while managing deployments on AWS. This role offers the unique opportunity to shape the architecture of a product bridging the gap between education and employment.

Location

Portugal, Egypt, Morocco, or Greece

Why this role is remarkable

• Direct impact on global education outcomes using predictive analytics to identify at-risk students and improve career readiness.
• Early-stage opportunity with meaningful equity in a well-funded startup backed by a vision to connect schools, governments, and employers.
• High degree of autonomy and architectural ownership in a small founding team environment where your code ships fast.

What you will do

• Design and maintain scalable backend services using NestJS and TypeScript, incorporating Python scripting for data automation and operational efficiency.
• Develop high-performance frontend interfaces with React and TypeScript, ensuring a seamless user experience across web and mobile platforms.
• Manage full-cycle deployments and infrastructure scaling on AWS using Docker, Nginx, and Ubuntu Server to support growing client installations.

The ideal candidate

• 10+ years of professional full-stack experience with deep proficiency in Node.js frameworks, React, and relational databases like PostgreSQL.
• Strong hands-on experience in DevOps and cloud infrastructure management, specifically within AWS, Docker, and Linux server environments.
• A proactive problem-solver who thrives in startup environments, comfortable with end-to-end ownership from architectural definition to production deployment.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Senior Full-Stack Engineer

Salary

$150k–$200k + Equity

Company Description

Series A digital health startup backed by a16z and Khosla Ventures helping 10M+ seniors

Job Description

Join a mission-driven team as a Senior Full-Stack Engineer building a clinical platform that has already reduced falls in older adults by 46%. You will own the architecture and end-to-end feature development on a React/Python/AWS stack, shipping high-impact products like ML-driven care guidance and EHR integrations to improve healthcare outcomes for millions.

Location

Los Angeles, USA

Why this role is remarkable

• Rare opportunity to join an a16z and Khosla Ventures-backed startup at an inflection point where product-market fit is proven and scaling is the primary focus.
• Direct clinical impact: build technology that significantly reduces injury and hospitalizations for a population of 10 million Medicare members.
• High ownership environment where you will shape technical direction and influence the engineering foundation rather than just executing tickets.

What you will do

• Architect and maintain scalable, HIPAA-compliant components on AWS to power member engagement and clinical messaging workflows.
• Partner with data science and clinical teams to prototype and launch ML-driven personalization and care guidance features.
• Drive technical excellence by mentoring teammates, conducting code reviews, and evolving the platform's design system and infrastructure.

The ideal candidate

• 5+ years of professional experience scaling modern web applications using Javascript (React) and Python on cloud infrastructure.
• Product-minded engineer with a growth mindset who thrives in fast-paced startup environments and can navigate technical ambiguity.
• Strong communicator who possesses deep empathy for older adults and is motivated by improving healthcare accessibility and independence.

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 Engineer / ML Ops

Salary

Not Disclosed

Company Description

VC-backed multimodal AI startup

Job Description

As the first dedicated data hire, you will architect the end-to-end data strategy for a platform creating authentic, real-time AI humans. You will build massive pipelines for multimodal datasets—including video, audio, and text—powering proprietary models at the frontier of AI research. This is a foundational role defining best practices.

Location

Remote

Why this role is remarkable

• Own the entire data strategy and infrastructure from scratch for a pioneering multimodal AI platform.
• Join a well-funded, Series B backed startup supported by some of the world's leading venture firms.
• Work directly with founders on complex problems with no established playbook at the intersection of video and AI.

What you will do

• Source, curate, and structure large-scale multimodal datasets (video, audio, and text) for proprietary model training.
• Architect and optimize high-performance data pipelines and automated labeling workflows to scale ML production.
• Define engineering best practices and proactively build the data foundation that powers next-generation conversational AI.

The ideal candidate

• Expert proficiency in Python, SQL, and building large-scale data processing systems in a production environment.
• Proven experience working with LLMs and managing complex multimodal data challenges like video and audio.
• A startup builder mentality with extreme ownership and the ability to define standards in new problem spaces.

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 Marketer & Engineer

Salary

$75k-$150k + Equity

Company Description

GenHealth.ai is an early-stage, AI-native startup transforming the healthcare industry through generative AI and large language models to improve patient outcomes.

Job Description

As the first marketing hire at GenHealth.ai, you will bridge the gap between engineering and growth. You'll build internal apps and automation frameworks using Python and APIs to drive outbound systems while creating high-impact content. This founding role offers the autonomy to shape the company's technical GTM architecture and brand strategy from day one.

Location

Remote, USA

Why this role is remarkable

• Join as a founding marketing hire with the unique opportunity to build the company’s GTM infrastructure and technical growth engine from the ground up.
• Work at the cutting edge of healthcare and AI, leveraging LLMs like Claude and Cursor to automate complex marketing and sales workflows.
• Enjoy significant ownership and autonomy, reporting directly to the Head of Sales & Operations with a direct line to the founding team.

What you will do

• Engineer automated outbound systems and GTM pipelines using Python and APIs to scale lead generation and pipeline performance programmatically.
• Create and distribute high-quality technical content across blogs, newsletters, and social media platforms to establish GenHealth.ai as a thought leader.
• Coordinate multi-channel marketing campaigns and professionalize brand presence at major industry conferences through targeted collateral and follow-up strategies.

The ideal candidate

• Possesses 3-5 years of experience in marketing or engineering with strong fundamentals in Python and building internal automation tools.
• Demonstrates exceptional writing skills and the ability to translate complex generative AI concepts into accessible, engaging marketing content for healthcare audiences.
• Thrives in fast-paced startup environments and is comfortable building the plane while flying it across both technical and creative domains.

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

Founder Associate

Salary

Not Disclosed + Equity

Company Description

VC-backed renewable energy platform

Job Description

Support a seasoned founder in scaling a decentralized energy transition vehicle focused on the German commercial market. You will own critical workstreams across project finance, financial modeling, and legal structuring for solar and storage assets. This is a high-impact, entrepreneurial role with significant equity upside and a path to a full-time leadership position.

Location

Remote, Europe

Why this role is remarkable

• Join a live operation with proven product-market fit and a massive, pre-secured project pipeline in the energy transition space.
• Work directly with a founder who has successfully deployed significant capital into decentralized energy projects across Europe.
• Massive equity potential and the chance to transition into a core leadership role as the platform scales rapidly.

What you will do

• Build and maintain complex financial models for solar PV, battery storage, and EV charging assets, including IRR and leverage analysis.
• Draft and iterate on commercial term sheets, investor pitch materials, and data rooms for infrastructure financing and transactions.
• Manage external stakeholders including EPC partners, grid operators, and distribution partners to drive projects toward final investment decisions.

The ideal candidate

• 2-4 years of experience in investment banking, infrastructure private equity, project finance, or a high-growth climate tech startup.
• Native or near-native fluency in German and English, with the ability to navigate German energy regulations and commercial contracts.
• Advanced financial modeling skills and a roll-up-your-sleeves mentality suited for a lean, fast-paced entrepreneurial 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

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

Software Engineer

Salary

$140K - $250K + Equity

Company Description

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

Job Description

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

Location

San Francisco, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

===

Job Title

Security Engineer

Salary

Not Disclosed

Company Description

Decentralized blockchain infrastructure platform

Job Description

As a Security Engineer, you will join a specialized team dedicated to securing high-stakes blockchain infrastructure. You will audit Rust code, implement automated security analysis using ML models, and manage bug bounty programs. This contract role impacts a major open-source ecosystem by embedding security best practices across the entire stack.

Location

Remote

Why this role is remarkable

• Lead security efforts for a massive, high-impact open-source blockchain ecosystem used globally.
• Work at the intersection of deep systems engineering and advanced security research, including ML-driven analysis.
• Join a well-funded, top-tier decentralized tech organization with a mission to redefine the internet.

What you will do

• Conduct manual and automated code reviews of complex Rust-based software and runtime environments.
• Build and maintain sophisticated machine learning models for anomaly detection and automated security scanning.
• Manage and triage vulnerability submissions from bug bounty programs to ensure rapid resolution of critical issues.

The ideal candidate

• Possesses extensive experience in secure software engineering, specifically with the Rust programming language.
• Demonstrates a deep understanding of cryptography, distributed systems, and modern security auditing techniques.
• Has experience building or deploying machine learning models for automated analysis or anomaly detection.

===

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:
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

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.

===

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

Job Title

Frontend Engineer

Salary

$160K–$250K + Equity

Company Description

Greptile - Benchmark & YC-backed AI code review layer

Job Description

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

Location

San Francisco, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

===

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Software Engineer

Salary

$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 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.

Title:
Lead Software Engineer at Anima - YC-backed HealthTech

Job Title

Lead Software Engineer

Salary

Not Disclosed

Company Description

Anima - YC-backed HealthTech startup

Job Description

Join a high-velocity team building the future of personalized medicine through a proprietary active learning architecture. As a Lead Engineer, you will own critical product features end-to-end, leveraging a serverless AWS stack and TypeScript to ship life-saving tools for medical teams and patients while navigating novel technical challenges in deep phenotyping.

Location

Remote

Why this role is remarkable

• Work alongside an elite technical team including YC founders and Cambridge MB/PhDs who have built self-driving vehicles and acoustic deep learning systems.
• Ship at incredible speed on a highly scalable, zero-ops serverless architecture that handles thousands of medical channels and real-time patient data processing.
• Contribute to a mission-critical platform that predated the vertical AI craze, utilizing a 2021 patent on active reinforcement learning for clinical excellence.

What you will do

• Architect and deploy type-safe, full-stack applications using TypeScript, React, and Angular across both clinical and patient-facing web environments.
• Lead the end-to-end delivery of complex product features, from initial conception through to production on AWS Lambda, DynamoDB, and SQS infrastructure.
• Optimize user experience and interface safety through disciplined version control, CI/CD practices, and dimensionality reduction at system interfaces.

The ideal candidate

• Possesses expert-level proficiency in TypeScript and the Node.js ecosystem with a pragmatic approach to technical debt and tool selection.
• Demonstrates a relentless track record of shipping production-grade software and navigating ambiguity to solve complex algorithmic problems from first principles.
• Exhibits deep hands-on expertise in serverless cloud architecture (AWS) and a drive to master new technologies to solve high-impact healthcare 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

Salary

£86k-£250k+ + Equity

Company Description

Bending Spoons S.p.A. is a leading technology company that acquires and transforms established digital businesses like Evernote, WeTransfer, and Meetup to own and operate for the long term.

Job Description

You will build and evolve systems used by millions, taking full ownership from idea to production across a diverse tech stack including Python, Rust, and Kubernetes. At Bending Spoons S.p.A., you’ll integrate AI deeply into your development workflow to simplify architectures and maintain high standards for reliability and scale.

Location

Milan, Italy; Madrid, Spain; Warsaw, Poland; London, UK; Remote

Why this role is remarkable

• Work on iconic global products including Evernote, WeTransfer, and Meetup, impacting hundreds of millions of users daily through deep technical transformations.
• Join an elite, talent-dense environment with a 0.04% hiring rate, where early-career engineers frequently lead products worth hundreds of millions of dollars.
• Benefit from top-of-market European compensation, discounted company equity, and a generous relocation package that includes a potential 50% tax reduction in Italy.

What you will do

• Design, implement, and maintain high-scale software systems using a modern toolkit including Python, Rust, Docker, and Kubernetes, choosing the best tools for each challenge.
• Leverage advanced AI tools throughout the entire development lifecycle—from design and coding to testing and documentation—to maximize efficiency and maintain high standards.
• Relentlessly simplify complex architectures and pipelines to ensure systems remain maintainable and performant while evolving established products with the agility of a startup.

The ideal candidate

• Demonstrates exceptional first-principles reasoning and the ability to solve complex, unfamiliar problems with structural sharpness and extreme attention to detail.
• Exhibits intense ambition and ownership, holding themselves to a high and rising bar for technical excellence and impact within a demanding environment.
• Thrives in a collaborative, high-intensity team, prioritizing the best ideas over their own and showing a consistent willingness to support teammates to ensure collective success.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Senior Backend Software Engineer

Salary

£100k–£140k + Equity

Company Description

Fleek is a ~$50M Series B startup backed by a16z and Y Combinator, building the AI-native infrastructure for the $350B global secondhand fashion market.

Job Description

You will join the Growth squad to own the core ecommerce journey, building backend systems for discovery, payments, and seller tools. Reporting to the CTO, you'll integrate the proprietary FleekSort AI classification engine into a marketplace handling millions of items. This role is about digitizing a broken, manual supply chain at global scale.

Location

London, UK

Why this role is remarkable

• Work on a genuinely novel technical challenge by integrating FleekSort, a custom AI model (not a GPT wrapper) that digitizes opaque secondhand inventory.
• Join a hyper-growth company tripling year-on-year with ~$50M in funding from top-tier investors like a16z, Y Combinator, and HV Capital.
• Deliver massive environmental impact by building systems that have already saved 9 million items from landfills and are scaling to serve thousands of global retailers.

What you will do

• Architect and own the end-to-end ecommerce journey, including item discovery, search, multi-currency payment systems, and credit infrastructure.
• Design and scale backend services to handle over 1 million unique items per month, connecting AI grading engines to real-time marketplace workflows.
• Collaborate in a senior product squad to translate complex international logistics and supply chain challenges into reliable, high-performance software.

The ideal candidate

• Has 6-10 years of professional backend experience, ideally using Node.js and TypeScript, with a proven track record of shipping high-traffic production systems.
• Possesses a product engineering mindset from a consumer-facing marketplace or fintech background, focusing on commercial outcomes rather than just infrastructure.
• Thrives in early-stage, fast-paced environments (Seed to Series B) and utilizes AI tools like Cursor or Copilot as a force multiplier in their workflow.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

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

Machine Learning Engineer

Salary

Not Disclosed

Company Description

EQUALS is a high-growth music social network with 1 million monthly active users, backed by the top-tier investors behind Spotify, A24, and Facebook.

Job Description

As the first dedicated Machine Learning Engineer at EQUALS, you will own the core recommendation systems that power a platform with 1M MAUs and 40M friendships. You will build and scale end-to-end ranking, retrieval, and safety models, directly shaping how millions discover music and build communities through the world's most universal language.

Location

London, UK

Why this role is remarkable

• Directly impact a music-centric social graph that already sees higher engagement than Instagram and Snapchat among its 1 million monthly active users.
• Join an elite team of creatives and technologists from Nike, Instagram, and Apple, backed by the legendary investors behind Spotify, Facebook, and A24.
• Take total ownership of the full ML lifecycle—from data pipelines and candidate generation to production serving—without the constraints of a separate platform team.

What you will do

• Design and ship end-to-end ranking and retrieval models for content feeds, balancing engagement, discovery, and growth for artists and superfans.
• Build sophisticated people recommendation systems using social graph modeling and affinity analysis to spark millions of new friendships and connections.
• Develop and scale ML-driven trust and safety systems, including content classification and abuse detection, to protect a rapidly expanding global community.

The ideal candidate

• Proven experience shipping recommendation, ranking, or search systems at scale within a high-growth consumer social or music streaming environment.
• Deep technical proficiency in Python and the modern ML stack, with the ability to build and maintain your own data and serving infrastructure.
• A pragmatic, shipping-focused mindset that prioritizes iterative improvement and rigorous A/B testing over theoretical polishing in a vacuum.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Engineering Manager

Salary

£120k-£160k + Equity

Company Description

Omnea is a $75M-funded London startup building an AI-native procurement platform to reinvent how enterprises manage spend, backed by top-tier investors including Khosla Ventures, Insight Partners, and Accel.

Job Description

As an Engineering Manager at Omnea, you will lead multiple high-performing teams to scale an AI-native procurement platform. You’ll oversee 12-20 engineers, driving technical excellence and architectural decisions while partnering with product leadership. This is a high-autonomy role designed for leaders ready to define the engineering culture of a rapidly growing Series B rocket ship.

Location

London, UK

Why this role is remarkable

• Join the #4 fastest-growing startup in Europe, backed by $75M in funding from elite investors including Accel and Khosla Ventures.
• Experience massive scale and impact by leading up to three engineering teams for a product trusted by global giants like Spotify, MongoDB, and Monzo.
• Work alongside a world-class leadership team that previously scaled Tessian to acquisition, operating in a high-talent-density environment with ex-Monzo and ex-Meta peers.

What you will do

• Lead and mentor 2-3 engineering teams totaling 12-20 engineers, fostering a culture of technical excellence, continuous improvement, and high performance.
• Partner with Product and Design leadership to define technical roadmaps and ensure the delivery of high-quality solutions at a fast-growth velocity.
• Facilitate critical architectural decisions and refine scalable engineering processes across domains like Accounting, Insights, and Workflow Orchestration.

The ideal candidate

• You have over 8 years of software engineering experience, with at least 3 years successfully managing multiple engineering teams simultaneously in high-growth environments.
• You possess a proven track record of scaling engineering functions within Series A+ B2B SaaS companies, ideally with experience in distributed systems and cloud architecture.
• You are a data-driven leader who is comfortable making decisions with incomplete information and has a history of growing engineering talent at pace.

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

£100k-£120k

Company Description

DigitalGenius is an AI-first company building proprietary agentic technology to transform customer experience for global ecommerce brands. Serving retail giants like On, Rapha, and Clarins, they are a high-growth London-based startup redefining automation. With a team of 57 across London and New York, DigitalGenius empowers brands to provide seamless, AI-driven support at scale.

Job Description

You will build the platform and backend services powering DigitalGenius's no-code automation engine and analytics platform. Working within a functional Scala stack, you will own the architecture of distributed systems, design scalable APIs, and integrate with third-party customer support tools. This role offers high autonomy to impact the core product used by major global retail brands.

Location

London, UK

Why this role is remarkable

• Work at the cutting edge of agentic AI, building a proprietary platform that powers the customer experience for world-class brands like AllSaints, Rapha, and Clarins.
• Join a high-growth startup environment where you have true ownership of distributed systems and architecture from day one, minimizing bureaucracy in favor of technical impact.
• Enjoy an exceptional benefits package including a £120k top-of-market salary, 34 days of annual leave, and dedicated budgets for AI training, lifestyle, and professional development.

What you will do

• Design and implement maintainable, scalable microservices and RESTful APIs using a modern functional Scala stack and the Typelevel ecosystem (http4s, Cats Effect, FS2).
• Architect the integration layer between third-party customer support tools and the proprietary DigitalGenius AI platform to ensure seamless, real-time agentic interactions.
• Collaborate directly with product stakeholders to build new features for the no-code platform, analytics engines, and internal data management functionality.

The ideal candidate

• You have at least 2 years of professional experience with Scala and a strong command of functional programming principles and the Typelevel library ecosystem.
• You possess hands-on experience with PostgreSQL, AWS, and infrastructure-as-code tools like Terraform to manage and deploy microservices-based distributed systems.
• You are a pragmatic engineer who reasons about software from first principles and takes genuine end-to-end ownership of the systems and features you deliver.

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

Senior Software Engineer, Infrastructure

Salary

$160k-$250k + Equity

Company Description

Well-funded AI video platform

Job Description

You will own the GPU inference infrastructure powering real-time AI conversations with sub-second latency. Managing multi-provider GPU deployments and EKS clusters, you'll optimize performance from CUDA hot paths to backend services. This role is critical for scaling a platform that enables seamless human-to-AI interaction across global regions.

Location

San Francisco, USA or Remote

Why this role is remarkable

• Own the core infrastructure for a cutting-edge real-time AI video interface that operates at sub-second latency levels globally.
• Join a well-funded Series B startup backed by top-tier VCs, operating with a small, high-impact team of roughly 40 people.
• Work at the intersection of infrastructure and research, directly influencing how conversational AI humans are deployed and experienced.

What you will do

• Design and manage multi-region GPU deployments across various providers to ensure reliable, high-performance inference.
• Architect EKS clusters including custom routing and scheduling logic to optimize workload placement across a global GPU fleet.
• Collaborate with researchers to optimize CUDA hot paths and reduce cold-start times for live, face-to-face AI conversations.

The ideal candidate

• Possesses hands-on experience deploying and optimizing large-scale GPU inference workloads on cloud providers like CoreWeave or AWS.
• Demonstrates deep expertise in Kubernetes and EKS, specifically regarding complex service routing and cluster management at scale.
• Proven track record of senior technical leadership, taking ownership of ambiguous infrastructure challenges and delivering production-ready solutions.

===

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

$175k-$250k + Equity

Company Description

Alta Daily is an $11M+ seed-stage startup backed by Menlo Ventures and a luxury conglomerate building the future of personal styling and shopping through AI. Supported by industry icons including the founders of DoorDash and Poshmark, we are creating a personal stylist in your pocket that understands taste and fit.

Job Description

As a Full Stack Engineer at Alta Daily, you will build an AI-powered styling platform that solves the problem of choice paralysis in online shopping. Working directly with the founding team in NYC, you'll own features end-to-end using React, TypeScript, and Python, shaping the product's technical architecture from day one.

Location

NYC, USA

Why this role is remarkable

• Join a high-caliber team at the ground floor with meaningful equity and the power to define the engineering culture of a consumer AI startup.
• Work on a product backed by $11M+ from Menlo Ventures and industry icons like Karlie Kloss, Manish Chandra (Poshmark), and Tony Xu (DoorDash).
• Build complex 0-to-1 features in a fast-paced NYC environment, directly influencing how millions of people discover fit and style through AI.

What you will do

• Develop polished, consumer-facing user interfaces using React and Next.js that demonstrate the power of proprietary AI recommendation models.
• Architect and scale backend systems using Python and Node.js to support real-time personal styling interactions for a growing user base.
• Collaborate across design and growth disciplines to ship features rapidly, moving from initial concept to production-ready code in a high-ownership environment.

The ideal candidate

• Has at least 2+ years of professional full-stack experience with a strong foundation in TypeScript, React, and Python-based backends.
• Demonstrates a builder's mindset, thriving in ambiguous environments where they can take full ownership of features and solve complex engineering problems.
• Is based in or willing to relocate to NYC for in-person collaboration and has a passion for building delightful, AI-driven consumer 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

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 Analyst

Salary

£50k-£68k

Company Description

Growth-stage UK fintech building intelligent B2B2C engagement infrastructure for major mortgage lenders

Job Description

You will take ownership of a live data environment, evolving a Redshift, dbt, and LightDash stack into a sophisticated analytical engine. Beyond maintaining reporting, you'll drive commercial value through cohort modelling and forecasting, helping the UK’s leading financial institutions proactively support over 1 million consumers through complex financial decisions.

Location

Remote, UK/EU

Why this role is remarkable

• Direct impact on the financial well-being of over 1 million mortgage holders by transforming how lenders engage with customers through data.
• Join at a pivotal growth stage as a founding member of a dedicated data function, working alongside a new VP of Engineering and Data Science Lead.
• High-autonomy remote culture that values execution, monthly London workshops, and the opportunity to influence product strategy through deep behavioural insights.

What you will do

• Maintain and fix the data transformation layer in dbt and LightDash to ensure 100% trustworthy reporting for client-facing teams.
• Develop complex cohort-level forecasting and retention models to underpin board-level reporting for Tier-1 mortgage lenders.
• Partner with product and engineering teams to instrument new features and conduct rigorous experimentation analysis on user journeys.

The ideal candidate

• 3+ years in data analytics with expert-level SQL and Python (pandas/numpy) skills in a startup or scale-up environment.
• Hands-on experience building and testing transformation models in dbt within a cloud warehouse environment, preferably Redshift.
• Proven ability to navigate complex relational data structures (B2B2C/SaaS) and translate technical findings into clear narratives for non-technical stakeholders.

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 Retail Sales

Salary

£70k–£90k + Equity

Company Description

Well-funded dental healthtech startup

Job Description

You will spearhead the retail expansion of a cutting-edge dental technology brand across the UK. Responsible for securing and managing key accounts with major pharmacy and grocery retailers, you will drive market penetration for innovative oral care products. This role combines strategic account management with hands-on growth in a fast-paced environment.

Location

London, UK

Why this role is remarkable

• Lead the retail strategy for a disruptive category-leading healthtech product.
• Backed by top-tier VCs and undergoing rapid commercial scaling.
• High-impact leadership role with significant equity and growth potential.

What you will do

• Establish and grow strategic partnerships with major retailers like Boots and Superdrug.
• Develop and execute comprehensive national account plans to maximize brand visibility.
• Collaborate with marketing teams to optimize rate of sale and promotional effectiveness.

The ideal candidate

• Extensive experience managing national accounts within health, beauty, or personal care.
• Proven track record of securing listings with major UK pharmacy and grocery chains.
• Ability to transition effectively from large FMCG environments to challenger brand cultures.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Fullstack Kotlin Engineer

Salary

Not Disclosed

Company Description

Leading technology-enabled healthtech platform

Job Description

As a Fullstack Kotlin Engineer, you will drive the technical strategy for a pioneering remote care platform. You will build backend services, web portals, and Android robot applications entirely in Kotlin. This role is pivotal in migrating to a V2 architecture, integrating advanced AI capabilities, and scaling technology that measurably improves lives.

Location

Remote, UK

Why this role is remarkable

• Work on mission-driven technology that combines robotics, virtual care, and AI to help vulnerable individuals live independently.
• Join a well-funded scale-up with national reach, offering the agility of a startup with the stability of an established provider.
• Lead architectural decisions and technical roadmaps while leveraging agentic coding tools and AI-assisted development to maximize velocity.

What you will do

• Drive technical strategy and own the architecture roadmap for backend services, web portals, and Android applications.
• Develop and scale the platform's V2 architecture, integrating AI features like predictive alerts, falls detection, and conversational triage.
• Collaborate with operations and IoT teams to integrate medical devices and translate real-world care feedback into platform improvements.

The ideal candidate

• Professional experience with idiomatic Kotlin across backend (Ktor/Spring Boot), web (Compose for Web), and Android targets.
• Demonstrated ability to form and execute technical strategy, including architectural decisions and build-vs-buy analysis in regulated environments.
• Fluency with AI-assisted development tools (Cursor, Claude, or Copilot) and a bias for action in fast-paced engineering cultures.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

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

Contract Design Systems Expert — AI Training & Evaluation

Salary

$30–$90/hr

Company Description

Well-funded AI data infrastructure startup

Job Description

Join a pioneer in human-data evaluation to teach frontier AI models the nuances of high-quality design. You will build production-grade design systems in Figma or code, evaluate AI-generated UI outputs, and define benchmarks for aesthetics and usability. This is a unique opportunity to shape how future AI systems understand creative craft.

Location

Remote

Why this role is remarkable

• Shape the future of generative AI by training frontier models to understand "taste," aesthetics, and professional design standards.
• Join an elite, curated community of creative technologists and designers working on funded projects for leading AI research labs.
• Enjoy high-impact, async contract work with flexible hours while contributing to the core infrastructure layer of creative AI.

What you will do

• Create and refine comprehensive component libraries, design token architectures, and pattern libraries for diverse AI product contexts.
• Conduct deep technical evaluations of AI-generated design outputs, providing structured critiques and scoring against rigorous quality rubrics.
• Build and implement token pipelines and coded component libraries using React and Storybook to test AI implementation fidelity.

The ideal candidate

• Possesses 4+ years of professional experience building and owning production-grade, token-based design systems from the ground up.
• Demonstrates expert-level proficiency in Figma (auto-layout, variables, theming) or modern front-end engineering (React, Storybook, token pipelines).
• Has a meticulous eye for design fidelity and the ability to articulate complex technical critiques in clear, precise English.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Chief of Staff, Commercial Strategy

Salary

Not Disclosed

Company Description

Deep-tech AI infrastructure startup

Job Description

Support the CEO in scaling a deep-tech startup by driving commercial strategy and high-stakes partnerships. You will craft compelling narratives, build executive-ready materials, and conduct deep-market research to accelerate growth. This high-leverage role acts as a bridge between technical and commercial teams, ensuring seamless deal execution and strategic alignment across global stakeholders.

Location

Oxford, UK and California, USA

Why this role is remarkable

• Directly partner with a high-profile founder to shape the company’s commercial trajectory and executive narrative.
• Join a well-funded Series A startup backed by top-tier VCs and a decade of specialized university research.
• Exceptional growth potential to transition from a Chief of Staff seat into a core commercial leadership position.

What you will do

• Drive the end-to-end preparation for CEO-led commercial meetings, including briefing notes, agendas, and stakeholder research.
• Develop high-quality pitch decks, memos, and tailored materials that translate complex technical concepts into sharp commercial narratives.
• Manage the commercial operating cadence, tracking deal pipelines and ensuring rigorous follow-through on complex strategic partnerships.

The ideal candidate

• 1-3+ years of experience in top-tier strategy consulting or a high-pace commercial strategy or BD role.
• Exceptional storytelling skills with a proven ability to create executive-level decks and written communications for diverse audiences.
• Strong analytical rigour and learning agility to quickly master complex markets such as AI infrastructure and 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

AI-Native Product Engineer

Salary

Not Disclosed + Equity

Company Description

Seed-stage fintech infrastructure startup

Job Description

Join a fast-moving team building a unified data layer for complex financial reporting. As an AI-native engineer, you will leverage agentic development tools to ship features across the full stack while maintaining rigorous data integrity. You will own the judgment calls that turn AI-generated code into a trusted foundation for institutional decision-making.

Location

New York, USA

Why this role is remarkable

• Pioneer an AI-native engineering workflow, running multiple agents in parallel to achieve throughput far beyond traditional development cycles.
• Work at a seed-stage company with real customers and high financial stakes where data accuracy is the primary competitive moat.
• Join a high-ownership environment where you collaborate directly with leadership to shape the core architecture of an AI-first fintech organization.

What you will do

• Build and ship complex product modules and UI components using agentic development tools like Claude Code and a purpose-built skills library.
• Manage multiple parallel agent workstreams, conducting meticulous diff reviews to ensure every deploy meets strict behavioral testing standards.
• Maintain a clean boundary between the product surface area and core calculation logic by collaborating closely with internal data engineering teams.

The ideal candidate

• 4+ years of full-stack experience (React/TypeScript and Python) with a track record of shipping polished, user-centric product surfaces.
• Proven experience using agentic coding tools like Claude Code or Cursor as a primary development workflow to ship production-ready features.
• A quality-first mindset characterized by assuming AI agents make mistakes and proactively writing behavioral tests to prevent regression risks.

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, Platform

Salary

$200k-$250k + Equity

Company Description

Duckbill is a $7.75M seed-funded San Francisco company backed by Heavybit and Uncork Capital, building Skyway to automate cloud cost management. Founded by domain experts with seven years of research, Duckbill provides the financial infrastructure used by AI labs and neoclouds to manage nine-figure infrastructure agreements.

Job Description

Join a high-impact team building Skyway, a financial platform for AI-native companies managing massive infrastructure costs. You will architect data systems processing hundreds of millions of billing rows using Python and ClickHouse. As one of the first ten engineers, you will own the infrastructure transforming unstructured cloud agreements into precise, actionable financial data.

Location

San Francisco, USA

Why this role is remarkable

• Direct impact on $10M+ compute decisions for the world's leading AI labs and neoclouds through your data models and financial engines.
• Backed by $7.75M from Heavybit and Uncork Capital with a massive competitive advantage derived from seven years of proprietary benchmark data.
• Massive autonomy in an engineering team of six where you will make foundational technical decisions and ship code to production daily.

What you will do

• Build and maintain streaming and batch data processing pipelines for hundreds of millions of rows using OTel, API pulls, and S3.
• Develop the contract application engine that reconciles complex, unstructured cloud agreements with real-time consumption data for mission-critical financial accuracy.
• Design multi-provider data models and partitioning strategies in ClickHouse to deliver sub-second performance on heavy analytical workloads for strategic finance leaders.

The ideal candidate

• Strong professional experience building large-scale data systems using Python, SQL, and OLAP databases like ClickHouse, Snowflake, or DuckDB.
• Deep understanding of ETL pipelines, lakehouse architectures, and the nuances of reconciling streaming versus batch data sources in high-precision environments.
• Self-directed engineer who thrives in high-autonomy environments and maintains a fastidious approach to data quality when no clear spec exists.

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

Not Disclosed + Equity

Company Description

Raya Health is a pre-Series A startup (HF0 W26) building an AI-powered maternal health companion to provide 24/7 guidance and support for mothers during and after pregnancy.

Job Description

As the first dedicated AI hire at Raya Health, you will own the entire AI stack from agents to future SLMs. Working directly with the CTO, you'll design the architecture and data pipelines necessary to support vulnerable users with compassionate, credible AI guidance. This is a high-impact, zero-to-one role in the underserved maternal health space.

Location

Remote, USA

Why this role is remarkable

• Work directly with the CTO (formerly systems engineering at HP and AMD) with zero layers, total ownership, and high visibility.
• Join a mission-driven pre-Series A startup (HF0 W26) at the ground floor to tackle the underserved and growing maternal health market.
• Evolve from building production LLM agents and RAG systems today to training proprietary small language models (SLMs) specifically for maternal health.

What you will do

• Design and build Raya's core AI systems, including RAG-based agents, prompting strategies, guardrails, and evaluation frameworks for sensitive health interactions.
• Architect and implement robust data pipelines to capture high-value maternal health data that will fuel future proprietary model training and improvements.
• Ship end-to-end features, bridging the gap between the user-facing companion experience and the backend AI infrastructure while maintaining HIPAA compliance.

The ideal candidate

• Has 2–4 years of engineering experience with a track record of shipping production-level LLM systems such as agents, RAG, and APIs.
• Possesses a bias for action and the startup DNA required to thrive in a zero-to-one environment with high shipping velocity.
• Demonstrates strong software fundamentals and an interest in growing into deep AI architecture, model fine-tuning, and safety-critical health applications.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

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

Staff Product Engineer

Salary

£135k-£170k + Equity

Company Description

$116M Series B AI-native CRM startup backed by GV and Redpoint

Job Description

You will solve the most complex technical challenges for a next-generation CRM built for the AI era. As a Staff Product Engineer, you will drive technical strategy across teams, designing robust cloud-native systems while mentoring high-caliber talent. You’ll balance technical excellence with business delivery to build a tool that empowers ambitious global GTM teams.

Location

Remote, UK

Why this role is remarkable

• Work at the frontier of AI-native architecture with a high-performance team backed by world-class investors like GV, Redpoint, and Balderton.
• Take a high-impact leadership role where you influence the fundamental infrastructure and technical standards of a platform disrupting the CRM market.
• Enjoy a craft-focused culture that prioritizes deep technical rigor, exceptional user experience, and frequent international team off-sites to locations like Barcelona and Lisbon.

What you will do

• Provide technical leadership for critical infrastructure, ensuring the platform remains reliable, scalable, and secure as the user base grows.
• Mentor and coach a world-class engineering team, fostering a growth mindset and raising the bar for software operations in the age of AI.
• Collaborate across the organization to make strategic trade-offs between rapid delivery and architectural perfection, optimizing for customer value and business growth.

The ideal candidate

• Demonstrates first-class technical execution in distributed, cloud-native systems with a proven ability to think in complex systems rather than just code.
• Possesses a track record of technical leadership, having successfully broken down large, ambiguous problems into executable goals for other engineers to own.
• Maintains a product-first mindset with strong opinions on UX, using data and customer insights to build features that are uniquely valuable to 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

Robotics Engineer – Systems & Sensing

Salary

£100k-£175k + Equity

Company Description

Adexis is a London-based frontier research lab solving dexterous manipulation to achieve physical general intelligence, backed by leading investors and top-tier researchers from Anthropic, ElevenLabs, and Google DeepMind.

Job Description

As a founding hire at Adexis, you will architect the real-time systems connecting AI models to physical hardware. You will build high-rate sensor nodes and the inference stack that serves as the robot's nervous system, ensuring every signal is processed with hard real-time precision to enable reliable, complex dexterous manipulation in the real world.

Location

London, UK

Why this role is remarkable

• Join a talent-dense founding team modeled after history’s greatest labs like Bell Labs and the Manhattan Project to solve the hardest problems in robotics.
• Work alongside elite researchers from Anthropic, ElevenLabs, and Google DeepMind on a mission to bring machines the power of touch and reach physical general intelligence.
• Influence the fundamental architecture of the nervous system for next-generation robots, moving research out of notebooks and onto reliable hardware systems.

What you will do

• Develop and own the inference node, running complex policies on physical hardware under hard real-time constraints and tight timing guarantees.
• Build sensor nodes that synchronize and stream multi-modal data, including high-rate force and contact signals, to provide the robot with a sense of touch.
• Own the entire stack's synchronization and latency, ensuring hardware components like arms, hands, and sensors work together as one reliable, high-performance system.

The ideal candidate

• Proven experience building and shipping real-time robotics systems onto hardware that runs reliably in production environments, not just in controlled demonstrations.
• Fluent in low-latency systems programming and deeply familiar with the nuances of sensor timing, data synchronization, and signal drift in physical systems.
• Demonstrated ability to integrate unfamiliar sensors and actuators from technical datasheets into working nodes with clean interfaces and robust performance.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed + Equity

Company Description

Early-stage consumer healthtech startup

Job Description

Join as the first engineer to build a mobile-first fitness platform from the ground up. You will own the entire technical stack, making key architectural decisions while shipping fast in an AI-assisted environment. Working closely with a notable founder and fractional CTO, you will transform early insights into a high-impact product.

Location

London, UK

Why this role is remarkable

• Full ownership of a greenfield project with the autonomy to select the tech stack and shape the product architecture.
• High-growth potential with a recognizable founder and a strong distribution strategy already in place from day one.
• Mission-driven work focused on improving wellness for a significant, underserved demographic through an adaptive fitness platform.

What you will do

• Lead the end-to-end development of a mobile-first consumer application using TypeScript and modern managed cloud services.
• Collaborate with founders to translate product vision into scalable technical features while maintaining high security and data standards.
• Implement AI-assisted development workflows to accelerate shipping cycles and maintain a high bar for product quality.

The ideal candidate

• 4–7 years of full-stack experience with a proven track record of shipping consumer-facing mobile or web applications.
• Strong product instinct with the ability to communicate technical trade-offs clearly to non-technical team members.
• Proficiency in TypeScript and modern frameworks like React Native, with a preference for low-ego, early-stage ambiguity.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Software Engineer

Salary

Not Disclosed + Equity

Company Description

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

Job Description

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

Location

California, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Title:
Senior React Native Engineer at Known - AI-powered matchmaking startup

Job Title

Senior React Native Engineer

Salary

Not Disclosed

Company Description

Known - AI-powered matchmaking startup backed by Forerunner Ventures

Job Description

As a Senior React Native Engineer, you will own the entire mobile surface area of a voice-first AI product. You'll solve complex audio engineering challenges and craft premium, native-feel interactions that benchmark against Apple-grade quality. Joining an elite team from Uber and Cash App, you'll apply general intelligence to revolutionize human connection.

Location

San Francisco, USA

Why this role is remarkable

• Work on a genuinely novel voice-first interaction paradigm where users engage in 27-minute average conversations with AI agents.
• Join a high-growth startup backed by top-tier investors including Forerunner Ventures (Decagon, Oura), NFX, and Pear VC as they approach Series A.
• High-autonomy environment in Cow Hollow, SF, collaborating with an elite engineering team from Uber, Afterpay, and Cash App.

What you will do

• Own the full mobile surface including voice interaction flows, matching UX, and real-time state management.
• Solve complex audio engineering problems such as streaming, silence detection, and graceful degradation for voice AI.
• Collaborate deeply with design to translate high-fidelity intent into fluid animations and gesture-responsive interfaces.

The ideal candidate

• Extensive experience shipping high-quality React Native consumer products where mobile craft and performance were existential to retention.
• Deep technical background in audio, voice, or real-time media features like WebRTC, recording, and streaming playback.
• Proven track record as an early engineer (employee 1-30) at growth-stage companies like Clubhouse, Discord, or Tinder.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

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

Senior Applied AI Engineer

Salary

$190k-$250k + Equity

Company Description

Well-funded healthtech AI startup

Job Description

Build and deploy production-grade AI systems that automate complex clinical workflows and improve patient care delivery. You will design LLM agents, implement RAG systems, and create robust evaluation frameworks for medical documentation. This role offers the opportunity to own the full AI lifecycle in a mission-driven environment where technology directly impacts healthcare outcomes.

Location

San Francisco, USA

Why this role is remarkable

• Work on high-impact AI systems that solve fundamental scaling challenges in the massive home healthcare market.
• Join a high-velocity Series A startup backed by top-tier venture capital firms with deep domain expertise.
• Influence the technical direction and architecture of a platform transitioning manual healthcare operations into automated, AI-native workflows.

What you will do

• Design and deploy LLM agents and RAG systems capable of reasoning over complex clinical documentation and context.
• Build rigorous evaluation frameworks and safety guardrails to ensure AI reliability within a highly regulated domain.
• Collaborate with engineering and product leaders to integrate automated reasoning into core healthcare delivery pipelines.

The ideal candidate

• Has over 5 years of software engineering experience with a proven track record of shipping production-grade LLM applications.
• Demonstrates strong engineering judgment regarding observability, maintainability, and reliability in AI-driven system design.
• Thrives in fast-paced startup environments and possesses the ability to navigate technical ambiguity while maintaining a focus on pragmatism.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Founding Engineer

Salary

Not Disclosed + Equity

Company Description

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

Job Description

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

Location

Remote

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Software Engineer - 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

Design Engineer

Salary

Not Disclosed

Company Description

Fiddle is a San Francisco-based startup building an IDE for taste-makers that pairs a codebase with an infinite canvas. Founded by an Adobe top 10 designer and elite engineers from Grok and gaming, they are closing the gap between design intent and production code for craft-obsessed teams.

Job Description

Join a three-person founding team as a Design Engineer to build the future of creative tools. You will own the frontend experience end-to-end, bridge the gap between Figma and production, and ship React components directly to an infinite canvas. This role is perfect for builders who prioritize visual craft and engineering excellence.

Location

San Francisco, USA

Why this role is remarkable

• Work at the intersection of visual craft and engineering on a product where code becomes the design medium, eliminating painful handoffs.
• Join a high-caliber founding team including an Adobe top 10 designer and engineers with backgrounds in LLM evals and real-time MMO systems.
• Exercise extreme ownership over both the brand identity and the technical architecture of a tool designed to be the IDE for taste-makers.

What you will do

• Design and ship high-fidelity React interactions and components directly to production on an infinite canvas environment.
• Shadow designers and engineers to refine the Fiddle product story, ensuring a seamless experience regardless of a user's technical competency.
• Prototype new features and interactions while helping hire and elevate the engineering culture within a tiny, high-velocity team.

The ideal candidate

• You have a portfolio of distinctive visual work and a deep understanding of the technical constraints surrounding modern design workflows.
• You possess professional experience shipping React components and TypeScript in production environments, moving beyond just static mockups or prototypes.
• You are a high-agency builder, potentially a former founder, who thrives in intense ideation sessions and prioritizes craft above all else.

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

Head of Platform Engineering

Salary

£225,000 + Equity

Company Description

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

Job Description

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

Location

London, UK

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

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

Founding Engineer (Full Stack)

Salary

$150k-$225k + Equity

Company Description

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

Job Description

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

Location

New York, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Full-Stack Engineer

Salary

Equity Only

Company Description

Rebase is building an AI Operating System for the enterprise, deploying autonomous agents that operate within complex, legacy environments—such as decades-old ERPs and homegrown databases—to automate work end-to-end.

Job Description

You will build the foundational infrastructure and interfaces for Rebase, an AI Operating System designed for complex enterprise environments. Working across the full TypeScript stack, you'll develop autonomous agents that operate within legacy systems while ensuring data remains secure and traceable. This is a high-impact, founding-level role focused on solving hard engineering challenges.

Location

USA or UK (Hybrid)

Why this role is remarkable

• Work on a founding-level opportunity building "Private AI for Work," tackling the technical debt and legacy systems that modern AI tools usually cannot reach.
• Join an ambitious team at the ground floor with significant ownership of the product roadmap and direct influence on company direction through heavy equity.
• Build actual autonomous agent infrastructure that performs deep, traceable work in regulated environments, moving beyond simple AI wrappers to solve real-world enterprise problems.

What you will do

• Develop and ship end-to-end features using TypeScript, React, Node.js, and PostgreSQL to support autonomous agent operations within customer infrastructure.
• Architect and build secure APIs and interfaces that allow AI agents to interact with decades-old ERPs, homegrown databases, and regulated legacy systems.
• Collaborate on AI infrastructure, implementing RAG pipelines and LLM integrations that prioritize fact-grounding and traceability for enterprise B2B customers.

The ideal candidate

• Brings 3–5 years of experience shipping enterprise B2B products end-to-end, with a proven ability to manage complex UI, backend, and database architectures.
• Possesses deep proficiency in the TypeScript ecosystem (React, Node.js) and PostgreSQL, ideally with experience in high-growth startups and Next.js or GraphQL.
• Has hands-on experience building production-grade AI infrastructure, including autonomous agents or ML pipelines, rather than simple API wrappers.

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

Founding Full Stack Engineer

Salary

Not Disclosed

Company Description

NELP is a fast-growing healthtech company building the system of record for nursing excellence across the country's largest health systems. By replacing manual spreadsheets with a unified platform for ANCC designations and clinical ladders, NELP empowers nursing leaders to improve patient outcomes and measurably increase nurse retention.

Job Description

As the Founding Full Stack Engineer at NELP, you will own the entire technical stack and shape a product that directly impacts patient safety and nurse retention. You’ll build enterprise-grade infrastructure, AI-driven workflows, and complex data models for large health systems, turning firsthand customer feedback into production features within days.

Location

San Francisco, USA

Why this role is remarkable

• You will be the first engineering hire, owning the entire technical stack from day one and shaping the engineering culture of a mission-driven startup.
• NELP is already deployed across major US health systems, solving a deep problem in a massive, underserved market where your work translates to saved lives.
• You’ll work directly with the CEO and receive meaningful founding-team equity while building a sophisticated platform that includes AI-powered evidence organization and enterprise integrations.

What you will do

• Own the end-to-end architecture and implementation of production features across four integrated products using TypeScript, React, and Next.js.
• Design and scale complex data models for multi-hospital organizational structures and implement robust enterprise infrastructure including SSO/SAML and HRIS integrations.
• Collaborate directly with health system leaders to translate their needs into AI-enhanced workflows for document retrieval and clinical evidence organization.

The ideal candidate

• Proven full-stack expertise in production environments using React and Next.js, with a strong ability to build workflow-heavy, multi-tenant SaaS applications.
• Experience as an early engineer at a high-growth startup, comfortable navigating ambiguity and owning both high-level architecture and granular code implementation.
• Excellent communicator who can work alongside non-technical domain experts and demonstrates a deep passion for improving healthcare through high-quality 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

Founding Product Designer

Salary

$120K - $175K + Equity

Company Description

SyntheticFi is a YC-backed (S23) fintech startup supported by Ritholtz and Social Leverage, currently managing over $2B in regulatory AUM. They are leveling the financial playing field by providing retail investors and advisors access to institutional-grade lending rates through the SPX box spread market, achieving 20%+ month-over-month growth since launch.

Job Description

As the first design hire at SyntheticFi, you will own the end-to-end product design for a complex fintech platform. Partnering directly with co-founders and engineers, you will translate intricate financial mechanics into intuitive B2B and B2C experiences, building design systems from scratch while the company scales rapidly beyond $2B in regulatory AUM.

Location

Remote, USA

Why this role is remarkable

• Lead design for a category-defining fintech product managing $2B+ AUM with consistent 20%+ month-over-month growth since its early 2025 launch.
• Solve unique UI/UX challenges by simplifying institutional-grade financial mechanics for retail investors, creating a more level playing field in the global lending market.
• Benefit from direct co-founder access and high autonomy as the founding designer, shaping the entire design culture and visual identity of a YC-backed startup.

What you will do

• Partner with product engineers and co-founders to set product direction, conducting user research to clarify complex workflows and technical business logic.
• Design and iterate on both B2B advisor dashboards and B2C client experiences, ensuring a high degree of polish for data-dense, institutional-grade interfaces.
• Build and maintain SyntheticFi’s foundational design system, establishing the patterns and standards that will define the brand's digital identity across all platforms.

The ideal candidate

• Has 5+ years of product design experience, specifically with a background in building complex B2B, fintech, data-heavy, or enterprise-level software products.
• Demonstrates mastery of Figma and a proven ability to build comprehensive design systems that bridge the gap between creative vision and technical implementation.
• Exhibits strong problem-framing skills and high visual design standards, with the comfort level required to thrive and lead in an ambiguous, 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

Founding Engineer

Salary

Not Disclosed

Company Description

Outro Health is a seed-stage virtual clinic helping patients safely taper off antidepressants using evidence-based protocols. Co-founded by world-renowned expert Dr. Mark Horowitz, the company is building a first-of-its-kind digital health platform to provide medically supervised guidance for millions looking to safely reduce medication under the Maudsley Deprescribing Guidelines.

Job Description

As engineer #2 at Outro Health, you will partner directly with the CTO to build a revolutionary health platform from scratch. You will own the full-stack architecture across patient-facing mobile apps, clinician portals, and pharmacy integrations. This is a rare opportunity to shape the engineering culture and product of a mission-driven NYC startup.

Location

New York City, USA

Why this role is remarkable

• Join as the second engineer, gaining significant influence over the technical architecture, product direction, and foundational engineering culture from day one.
• Work on a deeply impactful product co-founded by Dr. Mark Horowitz, a leading global authority on deprescribing and co-author of the Maudsley Guidelines.
• Tackle high-complexity engineering challenges including pharmacy integrations, AI-native clinician workflows, and high-stakes patient-facing mobile experiences in an underserved medical niche.

What you will do

• Architect and build end-to-end features using TypeScript, Node.js, and Next.js, scaling the platform from its early stages to a robust production system.
• Develop and maintain cross-platform mobile experiences with React Native, ensuring seamless, medically-safe communication between patients and their specialized clinical teams.
• Collaborate directly with the founders in an onsite NYC environment to iterate on product requirements, pharmacy logistics, and internal operations tooling.

The ideal candidate

• Proven experience as an early-stage or founding engineer (ideally #1-5) who has successfully built and scaled products from near-zero in high-ambiguity environments.
• Deep technical proficiency across the modern TypeScript stack, including React, Node.js, and GCP, with a preference for candidates from the health-tech sector.
• Strong bias for action and local presence in NYC, ready to work onsite 5 days a week in a fast-paced, collaborative startup setting.

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Account Executive (USA)

Salary

$300k-$340k OTE + Equity

Company Description

Maze is a $57M Series B cybersecurity startup backed by Theory Ventures and Cherry Ventures, building AI agents that automate vulnerability management.

Job Description

Join Maze as a Founding Account Executive to spearhead US sales for our AI-driven vulnerability management platform. You will own the full enterprise sales cycle, from outbound prospecting to closing $100k+ deals. This is a high-impact opportunity to shape the go-to-market strategy for a product already trusted by Fortune 200 companies and high-growth tech firms.

Location

Remote, USA

Why this role is remarkable

• Join the founding US sales team of a company that has raised ~$57M from top-tier investors like Theory Ventures, Cherry Ventures, and Tapestry VC.
• Sell a mission-critical AI solution that solves the vulnerability overload crisis, already deployed in production at Fortune 200 enterprises and high-growth technology firms.
• Work directly with a leadership team that successfully scaled Tessian to acquisition and has veteran experience at major scale-ups like Meta, Amazon, and Elastic.

What you will do

• Execute a full-cycle sales motion from creative outbound prospecting to closing complex enterprise deals exceeding $100k in annual contract value.
• Build and refine the US sales playbook from scratch, establishing Maze’s market presence without the initial support of an SDR team or pre-set playbook.
• Partner with security consultants to articulate how AI agents eliminate false positives and prioritize truly exploitable vulnerabilities for security teams and CISOs.

The ideal candidate

• Possesses 4-5+ years of enterprise closing experience, specifically selling cybersecurity or highly technical security products to practitioners and engineering leaders.
• Proven "pipeline machine" capability, demonstrating the ability to generate self-sourced opportunities through outbound strategies and networking without relying on inbound leads.
• Thrives in early-stage, ambiguous environments where they can transition seamlessly from high-level strategic planning to hands-on technical discovery and solution-based selling.

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

$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

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

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

Senior Software Engineer

Salary

$180K–$220K + Equity

Company Description

CTGT, Inc. is a $7M Seed-funded AI safety startup backed by Google's Gradient Ventures, General Catalyst, and Y Combinator building a deterministic governance layer for enterprise AI workflows.

Job Description

As a Senior Software Engineer at CTGT, Inc., you will own the architectural evolution of a high-performance governance platform. You’ll design core services, manage distributed systems tradeoffs, and work across the stack to ensure AI workflows are correct, fast, and auditable for Fortune 500 clients in high-stakes industries like finance and healthcare.

Location

San Francisco, USA

Why this role is remarkable

• True Architectural Ownership: You aren't just shipping features; you're making foundational decisions about system decomposition, state management, and long-term trajectory that define the core platform.
• Elite Backing and Traction: Backed by Gradient Ventures and YC, CTGT, Inc. is already deployed in Fortune 500 environments with a Policy Engine that outperforms frontier models at lower compute costs.
• Frontier Engineering: Work at the intersection of mechanistic interpretability and production-grade software, building mission-critical systems where deterministic performance and auditability are non-negotiable requirements for global institutions.

What you will do

• Design and build core services that determine how the CTGT, Inc. platform decomposes and manages state under concurrent enterprise load.
• Architect internal APIs and abstractions that balance critical tradeoffs across accuracy, consistency, availability, and low-latency performance.
• Develop end-to-end solutions from data models to product surfaces, ensuring the Policy Engine stays reliable as the platform expands into new environments.

The ideal candidate

• Deep experience building non-trivial distributed systems with a proven track record of making architectural choices that scale and age well in production.
• Full-stack proficiency across Python, Rust, or TypeScript, with a strong grasp of the engineering fundamentals required to build complex systems correctly the first time.
• Strong technical opinions on software design and the ability to navigate complex tradeoffs between research-level AI capabilities and production-ready engineering 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

Engineering Lead

Salary

£120k-£150k + Equity

Company Description

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

Job Description

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

Location

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

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Solution Engineer — LLM Deployment

Salary

Not Disclosed

Company Description

北京金网安泰信息技术有限公司 is a subsidiary of Sunyard Technology (信雅达) that has spent over 20 years building commodity trading platforms and blockchain systems for major enterprise clients and commodity exchanges across China.

Job Description

You will bridge the gap between enterprise client needs and large language model technology by designing RAG and fine-tuning solutions. This role involves building production-ready infrastructure using vLLM and Kubernetes while leading proofs of concept. You will be instrumental in launching the company's AI presence across the European market while working between London and Germany.

Location

London, UK

Why this role is remarkable

• Lead the deployment of LLM systems for an established market leader in commodity trading and supply chain finance that is now expanding into AI.
• Enjoy high autonomy as you shape the technical strategy and infrastructure for the company’s new European operations from the ground up.
• Work on mission-critical applications that integrate advanced AI with blockchain and enterprise digitalization systems for high-value trading markets.

What you will do

• Architect and deploy production LLM solutions including RAG, fine-tuning, and prompt engineering tailored to the trading and finance sectors.
• Build and maintain scalable model serving infrastructure using technologies like vLLM, Kubernetes, and specialized GPU clusters for enterprise-grade stability.
• Collaborate directly with European clients to run proofs of concept, gather requirements, and deliver production-ready AI systems that solve complex business problems.

The ideal candidate

• Possesses at least 5 years of experience building production software with specific, hands-on experience deploying LLMs using frameworks like vLLM or TGI.
• Demonstrates a strong background in client-facing roles such as pre-sales, solution architecture, or forward-deployed engineering within enterprise environments.
• Comfortable working across European and Chinese business cultures and is willing to travel regularly from London to Germany for business operations.

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

Commercial Manager

Salary

Not Disclosed

Company Description

Companion.energy is a pioneering energy technology company that bridges the gap between financial energy management and physical operations. By modeling complex contracts and flexible assets, they provide B2B enterprises with automated, real-time decision-making software to lower OPEX, maximize revenue, and increase renewable energy usage during the global energy transition.

Job Description

As Commercial Manager, you will lead Companion.energy’s expansion across the DACH region and Eastern Europe. You will act as the founding commercial lead in Germany, owning the end-to-end sales pipeline and shaping the go-to-market strategy. By translating complex energy flexibility into business outcomes, you'll help enterprise customers optimize their operational efficiency and market exposure.

Location

Germany, Remote

Why this role is remarkable

• Join a high-impact team at the intersection of energy markets and industrial operations, where your work directly accelerates the transition to renewable energy.
• Act as the founding commercial presence in Germany, with the autonomy to shape the company’s regional culture and long-term go-to-market strategy.
• Sell a sophisticated software solution that moves megawatts and money, providing tangible financial ROI and risk management for the world’s largest enterprises.

What you will do

• Build and manage a robust pipeline of B2B enterprise customers across DACH and Eastern Europe, driving the entire sales cycle from lead to close.
• Collaborate with technical and financial decision-makers to model and valorize energy flexibility, turning complex data into actionable business cases.
• Develop and refine the regional go-to-market strategy, identifying key market signals and partnership opportunities to scale the brand in new territories.

The ideal candidate

• Proven track record in B2B enterprise sales within the energy, SaaS, or industrial technology sectors, with experience managing high-value, complex deal cycles.
• Fluent in both German and English with an existing network of enterprise decision-makers and stakeholders across the German energy landscape.
• Entrepreneurial mindset with the ability to build a branch from the ground up, thriving in fast-paced environments where software meets the physical world.

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

Project Manager & User Researcher

Salary

£45,000 - £52,000

Company Description

Strand Intelligence is an AI-native cybersecurity startup that recently closed a £1M seed round led by Osney Capital and won CRN's Cloud Security Product of the Year 2025. They are revolutionising digital forensics by automating incident response, helping teams handle breaches five times faster with significantly less operational effort.

Job Description

You will lead a high-stakes, 12-month Innovate UK project deploying an agentic AI forensics platform into UK critical national infrastructure. This hybrid role combines technical program delivery with user-centred discovery. You will manage milestones and grant compliance while conducting deep research with security analysts to translate qualitative insights into prioritised product requirements.

Location

Manchester, UK

Why this role is remarkable

• Lead one of the UK’s first deployments of agentic AI forensics into live critical national infrastructure, culminating in a high-profile published case study.
• Join a high-growth startup backed by a £1M seed round from Osney Capital and recognized as CRN's Cloud Security Product of the Year.
• Work directly with founders and technical teams in a versatile role that balances rigorous project management with creative user-centred discovery.

What you will do

• Drive the day-to-day delivery of a 12-month programme, managing milestones, RAID logs, and Innovate UK grant compliance across six work packages.
• Conduct structured user research, including interviews and workflow observations with security analysts, to build a robust evidence base for user acceptability.
• Translate research findings into clear, traceable requirements and collaborate with engineering to prioritise features for two major feedback-driven product releases.

The ideal candidate

• Has at least 3 years of experience in project delivery, business analysis, or product management within a software, cyber, or technical environment.
• Demonstrates a proven ability to lead user discovery sessions and transform qualitative feedback into actionable technical requirements that developers can execute.
• Is highly organised and comfortable navigating the governance requirements of grant-funded projects or regulated sectors like utilities and national infrastructure.

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

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

Senior Full-Stack Engineer

Salary

$170K–$220K + Equity

Company Description

Well-funded healthtech AI startup

Job Description

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

Location

San Francisco, USA

Why this role is remarkable

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

What you will do

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

The ideal candidate

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

===

Who are Jack & Jill?

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

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

How does this work?

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

We never post fake jobs

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

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

#LI-JANDJLIVE

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

The next step is to speak to Jack.

Job Title

Medical Device Quality Engineer

Salary

£60K––£80K + Equity

Company Description

Scarlet is a Creandum-backed authority on AI medical devices and the only European Notified Body specializing exclusively in AI and software. With a team of ~65 people, Scarlet is authorized by governments to certify the world’s most innovative medical technology, bridging the gap between frontier AI and life-saving healthcare.

Job Description

As a Medical Device Quality Engineer at Scarlet, you will audit and certify Quality Management Systems for the world’s most ambitious healthtech companies. You’ll decompose complex regulatory requirements like ISO 13485 and EU MDR to design technology-native certification processes, directly accelerating the safe deployment of medical AI to patients worldwide.

Location

London, UK

Why this role is remarkable

• Join Europe’s only Notified Body dedicated to AI, certifying groundbreaking products from companies like Flok Health and Skin Analytics that traditional legacy bodies struggle to handle.
• Work at a Creandum-backed scale-up with ~65 employees, proven product-market fit, and exponentially growing revenue in a critical, high-barrier-to-entry global market.
• Shape the future of healthcare regulation by moving away from legacy "box-ticking" toward efficient, software-first audit processes for frontier medical technology and AI applications.

What you will do

• Audit and certify the quality management systems (QMS) of innovative healthcare companies building bleeding-edge medical AI systems and software medical devices.
• Interpret and implement complex regulatory standards, including ISO 13485, EU MDR, and emerging frameworks like the ISO 42001 AI management system standard.
• Design and optimize efficient assessment workflows that allow software medical devices to reach market access in record time without compromising patient safety.

The ideal candidate

• At least 4 years of professional experience in medical devices, including a minimum of 2 years specifically focused on quality management systems like ISO 13485.
• Deep expertise auditing against EU MDR requirements with at least one year of practical experience working with software-specific standards such as IEC 62304.
• A "ferociously curious" analytical mindset with the ability to interpret normative texts and operate autonomously in a fast-paced, high-growth 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