At a Glance
- Tasks: Own the product end-to-end, building secure web applications and collaborating with AI engineers.
- Company: Seed-stage AI security company backed by top investors, focused on innovative infrastructure.
- Benefits: Founding-team equity, competitive salary, and real technical ownership.
- Other info: Dynamic startup environment with direct collaboration with founders in King's Cross, London.
- Why this job: Join a pioneering team and make a significant impact in AI security.
- Qualifications: Strong full-stack engineering skills and experience with TypeScript, React, and Node.js.
The predicted salary is between 60000 - 80000 £ per year.
TechTree 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.
Location: On-site in London (King's Cross). Founding-team scope.
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 TypeScript, 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 SaaS 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.
Founding Product Engineer in London employer: TechTree
TechTree offers an exceptional opportunity for the Founding Product Engineer to join a pioneering AI security company in the vibrant King's Cross area of London. With a focus on real technical ownership and direct collaboration with founders, employees benefit from a dynamic work culture that fosters innovation and growth. The company provides competitive salaries, equity options, and the chance to make a significant impact in a fast-paced environment, making it an attractive employer for those seeking meaningful and rewarding careers.
StudySmarter Expert Advice🤫
We think this is how you could land Founding Product Engineer in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at TechTree or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to TechTree.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like TechTree.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like TechTree that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Founding Product Engineer in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at TechTree.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at TechTree and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at TechTree
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If TechTree uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
