Jack & Jill
Full-Stack Engineer at Calibre
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This is a job that Jill, our AI Recruiter, is recruiting for on behalf of one of our customers.
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
Calibre is an AI-native startup founded by ex-Palantir engineers that recently raised a $3.3M pre-seed round to transform the £190B certification industry.
Job Description
Join Calibre as a founding full-stack engineer to dismantle the archaic £190B TIC industry. Working alongside ex-Palantir founders, you will build AI-native agentic systems that replace manual document checks and Excel with automated audits. This role offers extreme ownership and the chance to apply the Palantir playbook to a foundational global market.
Location
London, UK
Why this role is remarkable
- Work directly with two ex-Palantir technical co-founders to master the "FDE playbook" for deploying complex AI workflows in enterprise settings.
- Join a well-capitalized team with a $3.3M pre-seed from top-tier San Francisco VCs targeting a broken £190B global industry.
- As a founding engineer, you will have total architectural ownership and influence, shipping critical code to real-world customers from day one.
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What You Will Do
- Develop high-velocity, full-stack code across front-end, back-end, and sophisticated AI-agent infrastructure using tools like Claude Code and Cursor.
- Collaborate with founders to solve architectural challenges, specifically capturing human "tribal knowledge" into self-improving, agentic AI systems.
- Engage directly with design partners to translate complex manual certification processes into intuitive, automated digital solutions that solve real-world problems.
The ideal candidate
- A top-tier programmer with 0-3 years of professional experience and a strong first-principles computer science background from a top university.
- AI-native developer who treats LLMs as a force multiplier and understands how to build robust frameworks around their inherent weaknesses.
- Language-agnostic problem solver with a portfolio of high-quality personal projects or hackathon wins that demonstrate exceptional technical talent and high output.
Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
How does this work?
- Jack's an AI agent for job searching and career coaching. He works for you.
- Jill is the AI recruiter working for the company. She recruits from Jack's network.
- If it's a match and the company wants to meet you, they'll make the intro. In the meantime, if you'd like, Jack will send you excellent alternatives.
We never post fake jobs
This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description.
We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
Give Jack a spin! You could land this role.
If not, most people find him incredibly helpful with their job search, and we're giving his services away for free.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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