Jack & Jill
Founding Engineer - Research (+ Equity) at Prior Foundry
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Job Title
Founding Engineer - Research
Salary
Not Disclosed + Equity
Company Description
Prior Foundry is a research-led technology company extending the frontier of simulations and Large Language Models within the fields of social science and public policy. Operating across London and NYC, the team builds specialized AI agents and inference infrastructure to solve complex global policy problems for the public sector.
Job Description
Join Prior Foundry as a Founding Research Engineer to bridge the gap between applied research and production systems. You will lead efforts in benchmarking simulations on policy problems, building specialized agents for economic analysis, and owning the end-to-end AI/ML layer. This role is pivotal in shaping how simulations impact real-world governance and social sciences.
Location
London, UK or New York, USA
Why this role is remarkable
- Sit at the intersection of cutting-edge LLM research and tangible public sector impact, solving high-stakes problems in social and economic policy.
- High-autonomy founding role with considerable equity upside and the opportunity to influence the core architecture of a scaling research-led company.
- Experience a unique global culture with regular travel between Paris, London, and NYC, working directly with users to ground your research in reality.
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What You Will Do
- Lead the benchmarking of advanced simulations on new policy problems across diverse fields like econometrics and causal inference.
- Build and deploy specialized research agents and production-grade data pipelines to support complex social and economic policy workflows.
- Own the entire AI/ML stack, including model selection, fine-tuning, inference infrastructure, and the continuous feedback loops that drive model improvement.
The ideal candidate
- Possesses 2–3 years of experience building ML systems in production or conducting deep applied research in ML or statistical domains.
- Demonstrates strong proficiency in Python and modern ML tooling, with a proven track record of moving from research ideas to working systems.
- Combines a genuine interest in public sector problems with the ability to navigate ambiguity and sparse specifications in a 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.
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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