Jack & Jill
Founding Engineer at Delfa
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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
Founding Engineer
Salary
Not Disclosed
Company Description
$3.8M Seed-funded AI startup backed by Air Street Capital automating clinical trial recruitment
Job Description
You will build and scale the core systems powering autonomous AI agents that accelerate life-saving medical treatments. Working in a high-talent density team, you will own complex technical projects from architecture to deployment, orchestrating intelligent workflows across trial sites and handling voice interactions to solve the multi-billion dollar clinical trial bottleneck.
Location
London, UK
Why this role is remarkable
- Join an elite technical team including foundation model researchers, world-class causal AI experts, and engineers from top-tier biotech firms like Exscientia.
- Extraordinary traction with seven-figure ARR, 25% month-on-month growth, and deployment across 300+ clinical trials in less than one year.
- High-autonomy 0→1 environment where your engineering decisions directly impact how quickly patients receive life-saving treatments for everyday diseases.
Reasons to use Rodeo
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It searches the market for you
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No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
What You Will Do
- Architect and scale core systems for AI agents, including intelligent workflow orchestration and real-time voice interaction infrastructure.
- Take full end-to-end ownership of critical product features, from initial design and system architecture to production deployment.
- Collaborate onsite in London with a multidisciplinary team of MDs and AI researchers to solve complex engineering challenges in the healthcare space.
The ideal candidate
- 2+ years of full-stack engineering experience with a track record of building high-quality products at high velocity.
- Strong builder instincts and an ownership mindset, demonstrated through professional work, side projects, or open-source contributions.
- Proficiency in modern tech stacks, ideally including FastAPI, TypeScript, React, PostgreSQL, and experience with workflow engines like Temporal.
Who are Jack & Jill?
Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then 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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