As a Founding Full Stack Engineer, you will lead the 0→1 development of a high-impact product. You will balance rapid shipping with technical excellence, making critical architecture decisions while staying focused on user value. This role requires a hands-on builder who thrives in ambiguity and is comfortable iterating quickly in an AI-driven environment.
This job is no longer actively hiring. Talk to Jack to find live roles.
Founding Full Stack Engineer at Well-funded AI automation startup
Join a well-funded London startup as a Founding Full Stack Engineer and take total ownership of a 0→1 product journey. We are looking for a startup-hardened builder who has previously been a founder or founding engineer to architect the future of AI automation. This is a unique opportunity to work alongside top-tier talent, move with extreme speed, and influence every aspect of the product and business from day one. If you thrive on high autonomy and have a deep technical curiosity for modern APIs, this is your chance to make a massive impact.
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This role is no longer actively hiring, but Jack can still help you discover similar open roles that fit.
Location
London, United Kingdom
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Well-funded AI automation startup
What you will do
- Architect and build scalable full-stack features using a bias for action and rapid shipping cycles.
- Collaborate closely with the founding team to translate user feedback into high-quality technical milestones.
- Proactively identify technical trade-offs to ensure the product remains lean, performant, and reliable.
Who this is a fit for
- Previous experience as a founder or a founding engineer in a high-growth, 0→1 startup environment.
- Product-minded approach with a track record of building and shipping features that real users love.
- Technically curious early adopter with strong proficiency in modern full-stack frameworks and AI integration.
Why this role is remarkable
- Influence the foundational culture and technical direction of a startup backed by top-tier VCs.
- Work directly with modern AI technologies and APIs to build a product that solves real-world pain points.
- High-autonomy environment where your decisions directly shape the business trajectory and long-term success.
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.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
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 your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.