At a Glance
- Tasks: Own the product end-to-end, building secure web applications and APIs.
- Company: Seed-stage AI security company backed by top investors.
- Benefits: Founding-team equity, competitive salary, and real technical ownership.
- Other info: Dynamic startup environment with opportunities for rapid growth.
- Why this job: Make a significant impact in AI security while collaborating with founders.
- Qualifications: Strong full-stack engineering skills and experience with TypeScript, React, and Node.js.
The predicted salary is between 60000 - 80000 £ per year.
Tech Tree is recruiting on behalf of a client — a seed-stage AI security company backed by Entrepreneur First and the Sequoia Scout Fund, building AI-native infrastructure to protect critical institutions from attack.
Founding Product Engineer
About The Role
This is not a UI cleanup role.
You will own the full product end-to-end, shipping features that enterprise security teams rely on — and working directly with AI engineers to turn model outputs into trusted product capabilities.
- What You’ll Do
- Own UI, API, and agent-powered product features end-to-end.
- Design and build robust, secure web applications for enterprise customers.
- Collaborate with AI engineers to integrate research into production-grade features.
- Build developer-friendly APIs and contribute to frontend architecture decisions.
- Ship fast, iterate with users, and maintain high quality throughout.
- What We’re Looking For
- Strong full-stack engineering — comfortable owning both frontend and backend.
- Track record of shipping high-quality product in fast-paced environments.
- Experience with Type Script, React, Node. js; Rust is a plus.
- Cloud infrastructure comfort — Azure, Docker, CI/CD.
- Bonus: experience with LLM/AI APIs in production; cybersecurity or enterprise Saa S background.
- What’s On Offer
- Founding-team equity.
- Competitive salary.
- Real technical ownership — not a ticket-taking role.
- Direct collaboration with founders.
- On-site.
- King’s Cross, London.
- #J-18808-Ljbffr
We think you need these skills to ace Founding Product Engineer
Full-Stack Engineering
Frontend Development
Backend Development
TypeScript
React
Node.js
Rust
