£375 - £475 per day
Outside Spy
England, UK
Front End Engineer, Fully Remote, 6 months, £475/day (OUTSIDE IR35) We're looking for a Senior Frontend, Full-stack Engineer to join a product-led team building AI-powered SaaS tools for knowledge workers. You'll work across multiple SaaS products, building everything from core product experiences to auth, onboarding, billing, and Real Time interactions. The focus is on getting the model right first, then implementing it cleanly with strong TypeScript and maintainable architecture. If you care about code quality, type safety, component design, and real-world product delivery, this role will suit you. What you'll work on Production Next.js (App Router) applications TypeScript Product flows: auth, onboarding, billing (Stripe), notifications AI-powered features, Real Time collaboration, data-heavy interfaces Clean, maintainable architecture (DDD, hexagonal principles) What we're looking for 5+ years React, 3+ years Next.js App Router Strong TypeScript experience...