As the first engineering hire, you will lead the evolution of an AI-driven prototype into a production-ready platform. You will translate business vision into technical architecture using TypeScript, React, and Node.js while managing custom agent infrastructure. This is a high-agency role for a technical leader looking to build a foundation from the ground up.
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London, United KingdomNot Disclosed + Equity
Full-Stack Founding Engineer at Early-stage AI startup
Join an early-stage AI startup as a Founding Engineer and take the lead in transforming an advanced prototype into a production-ready platform. This high-impact role offers significant equity and the chance to architect custom agent infrastructure from the ground up. If you are a high-agency engineer with deep expertise in TypeScript and Node.js, this is your opportunity to shape the technical foundation of a future industry leader while working in the heart of London’s tech scene.
Overview
Role overview
Company
About the company
Early-stage AI startup
Responsibilities
What you will do
- Transition an existing prototype into a scalable, production-grade product using modern web technologies.
- Architect and manage custom backend systems and sophisticated AI agent infrastructure.
- Serve as a technical partner to the founders, making critical decisions on architecture and product strategy.
Candidate profile
Who this is a fit for
- Expert-level proficiency in TypeScript, React, Node.js, and building complex backend architectures.
- Proven track record of high agency and the ability to translate product vision into technical execution.
- Experience or strong interest in AI agent infrastructure and scaling early-stage technical products.
What makes it remarkable
Why this role is remarkable
- Significant equity position as a core member of the founding team in a high-growth sector.
- High-impact leadership opportunity to own the entire technical roadmap and build out the engineering function.
- Collaborative environment based in a vibrant East London tech hub with a 4-day in-office culture.
Jack & Jill
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.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.
I recruit from Jack’s network and make the intro when I spot a great match.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.
Meet Jack
Jack gets to know what you're great at and what you want next, then searches 14 million jobs daily and introduces you directly to hiring managers.
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.
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