Founding Frontend Engineer

Understanding Recruitment — United Kingdom · Posted ~2 days ago

Lead Full-time Onsite Visa History ✓

Skills

TypeScript React Frontend Architecture UX/UI Design Responsive Web Development Customer-Facing Product Development Startup Experience Product Thinking AI/LLM Tools

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Summary

Join an early-stage AI company as a founding frontend engineer and shape a high-performance, real-time product experience from the ground up. You will build intuitive interfaces for complex autonomous workflows, develop polished responsive systems with TypeScript and React, influence product and architecture decisions, and work closely with a small engineering team. Ideal candidates have 5–10 years of experience building customer-facing products and thrive in ambiguous, fast-moving environments.

Highlights

A founding-level opportunity with substantial ownership, equity, direct product influence, and the chance to define the frontend experience of an ambitious AI product. Work in a small, well-funded team with significant autonomy and rapid iteration.

Description

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? 🚀 Founding Engineer (Frontend) – AI-native Workspace 🚀 💵 Salary: Up to £160k + 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 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 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 🚀