Jack & Jill
Founding Engineer (+ Equity) at early-stage consumer healthtech startup
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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 + 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.
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
- 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.
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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