At a Glance
- Tasks: Shape the frontend experience of a groundbreaking AI product and craft intuitive user interfaces.
- Company: Join a pre-seed AI startup with an elite team from top tech environments.
- Benefits: Competitive salary up to £170k, equity, and real ownership in your work.
- Other info: Work in a fast-paced environment with significant career growth opportunities.
- Why this job: Be a founding engineer and influence the direction of a next-gen AI product.
- Qualifications: 5-10 years in frontend development, strong UX/UI skills, and startup experience.
The predicted salary is between 170000 - 170000 € per year.
Do you have experience building and shipping exceptional UX at an early-stage startup or customer-facing product? Are you excited by real ownership, product influence, and shaping the frontend experience of a genuinely category-defining AI product?
Salary: Up to £170k + equity
Location: London, onsite
Experience: 5-10 years (startup or customer-facing product background are a bonus)
I'm excited to be continuing our partnership with a pre-seed AI startup building agentic AI systems that radically improve how knowledge workers think, decide, and get work done. This is not another chatbot. This is an AI-native product being built from first principles by engineers from elite technical environments (e.g. Palantir, Citadel).
As the company evolves into a more product-led, consumer-style experience, they're now looking to hire their first dedicated Frontend Engineer, someone who can own and shape the entire user experience from the ground up. This is a true founding-level opportunity as the 3rd engineering hire.
You’ll work directly on:
- Building high-performance, real-time AI-native interfaces
- Crafting intuitive UX for complex autonomous workflows
- Developing beautiful, responsive frontend systems in TypeScript & React
- Creating product experiences users genuinely love using
- Influencing product direction, interaction design, and frontend architecture
They’re particularly interested in engineers who have:
- Worked on developer tools, web-based IDEs, or highly interactive products (e.g. Gitpod, GitHub, Cursor-style environments)
- Built customer-facing or prosumer applications
- Strong product intuition and a sharp eye for UX/UI
- Experience operating in fast-moving startup environments
- A desire to own frontend strategy, not just implement tickets
Tech stack:
- TypeScript
- React
- AI-native workflows & tooling throughout engineering
Bonus points for:
- Some backend experience for optionality
- Experience with PLG or consumer-style products
- Design sensibility and ability to bridge engineering + product experience
What they’re looking for:
- Strong commercial & product mindset - you care deeply about user experience and outcomes
- Comfortable in ambiguity and zero-to-one environments
- Proven ability to ship quickly and iterate with users
- High ownership mentality and startup pace
- AI-native way of working (LLMs are tools, not toys)
Why join now?
- Real founding-level ownership and influence
- Small, elite team that ships fast
- Well-funded with long runway
- Opportunity to define the frontend experience of a next-generation AI product
- Not another boring B2B SaaS platform… this is something people will genuinely want to use
If you’re excited by the idea of building beautiful, intelligent product experiences at the frontier of AI, this is the one. Interested? Apply now.
Founding Engineer (Frontend) in London employer: Understanding Recruitment
Join a pioneering AI startup in London where you can take real ownership and influence the frontend experience of a groundbreaking product. With a small, elite team and a well-funded environment, you'll have the opportunity to shape user experiences that genuinely resonate with users while enjoying a culture that values innovation, fast-paced development, and personal growth.
StudySmarter Expert Advice🤫
We think this is how you could land Founding Engineer (Frontend) in London
✨Tip Number 1
Network like a pro! Reach out to people in your industry, especially those who work at startups or in AI. A friendly chat can lead to opportunities that aren’t even advertised yet.
✨Tip Number 2
Show off your skills! Create a portfolio or a personal project that highlights your frontend expertise. This is your chance to demonstrate your ability to craft beautiful, responsive systems.
✨Tip Number 3
Prepare for interviews by understanding the company’s product and its users. Think about how you can influence the frontend experience and be ready to share your ideas during the conversation.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, we love seeing candidates who are proactive!
We think you need these skills to ace Founding Engineer (Frontend) in London
Some tips for your application 🫡
Show Your Passion for UX:When you're writing your application, let your enthusiasm for creating exceptional user experiences shine through. We want to see how your past projects reflect your commitment to crafting intuitive and engaging interfaces.
Highlight Relevant Experience:Make sure to emphasise any experience you have with customer-facing products or in startup environments. We’re looking for someone who can hit the ground running, so showcase those skills that align with our needs!
Be Authentic:Don’t be afraid to let your personality come through in your application. We value authenticity and want to get a sense of who you are beyond just your technical skills. Share your story and what drives you!
Apply Through Our Website:For the best chance of getting noticed, make sure to apply directly through our website. It’s the easiest way for us to keep track of your application and ensures it lands in the right hands!
How to prepare for a job interview at Understanding Recruitment
✨Know Your Tech Stack
Make sure you’re well-versed in TypeScript and React, as these are crucial for the role. Brush up on your knowledge of AI-native workflows too, as understanding how they integrate with frontend systems will set you apart.
✨Showcase Your UX Skills
Prepare to discuss specific examples of how you've crafted intuitive user experiences in previous roles. Bring along a portfolio or case studies that highlight your ability to create beautiful, responsive designs that users love.
✨Demonstrate Ownership Mentality
This role is all about taking ownership, so be ready to share instances where you’ve influenced product direction or strategy. Talk about how you’ve navigated ambiguity and contributed to a startup environment.
✨Ask Insightful Questions
Prepare thoughtful questions that show your interest in the company’s vision and the product. Inquire about their approach to building AI-native interfaces and how they envision the frontend experience evolving.
