Founding Engineer

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?, 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 interfacesCrafting intuitive UX for complex autonomous workflowsDeveloping beautiful, responsive frontend systems in TypeScript & ReactCreating product experiences users genuinely love usingInfluencing 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 applicationsStrong product intuition and a sharp eye for UX/UIExperience operating in fast-moving startup environmentsA desire to own frontend strategy, not just implement tickets Tech stack:TypeScriptReactAI-native workflows & tooling throughout engineering Bonus points for:Some backend experience for optionalityExperience with PLG or consumer-style productsDesign sensibility and ability to bridge engineering + product experience What they're looking for:Strong commercial & product mindset - you care deeply about user experience and outcomesComfortable in ambiguity and zero-to-one environmentsProven ability to ship quickly and iterate with usersHigh ownership mentality and startup paceAI-native way of working (LLMs are tools, not toys) Why join now?Real founding-level ownership and influenceSmall, elite team that ships fastWell-funded with long runwayOpportunity to define the frontend experience of a next-generation AI productNot another boring B2B SaaS platform... this is something people will genuinely want to use

Salary: Up to £160k + equity Location: London, onsite Experience: 5-10 years (startup or customer-facing product background are a bonus)