Lead Full Stack Engineer

We're hiring a hands-on Lead Engineer to design, build, and ship product features across our Go microservices and modern React front-end. You'll work directly with our engineering leadership, Head of Product, and designer, taking end-to-end ownership of complex problems while pushing the boundaries of how engineers leverage AI both in product and in their daily workflow. This is a building-first role. We expect you to be delivering significant cross-stack features independently within your first two months. What You'll Be Doing: Full-Stack Feature Development (Primary Focus) - Design and ship new features across our Go microservices and React (Remix) front-end - Own complex problems end-to-end — from database design to user experience - Collaborate with engineering leadership, PM, and designer to deliver high-impact product improvements - Build internal tooling to accelerate the entire team Infrastructure & Developer Experience (Secondary) - Maintain and improve our Kubernetes (GKE) infrastructure - Contribute to CI/CD, observability, and developer workflows - Help optimize our AI-assisted development tooling and practices Must-Haves: - Active AI tool usage — you're already coding with AI assistants daily (Cursor, Claude Code, etc.) - 7+ years senior engineering experience with strong full-stack product development - Formal or informal experience providing technical leadership - Systems thinking and ability to navigate complex technical systems - Proven track record of shipping products - Go familiarity or strong experience with Java, Scala, C#, Rust, Python or TypeScript - Modern React (Remix/react-router or similar frameworks) - Some DevOps experience with production systems and deployment - Strong written and verbal communication skills for remote, async-friendly setup - Self-driven and able to work autonomously Bonus: - Significant DevOps/Cloud experience (Google Cloud, Kubernetes, microservices) - GraphQL API design in microservice environments - Event-driven architectures (Kafka) - Distributed database experience (Cassandra, ScyllaDB) - TailwindCSS utility patterns What We Offer £100k-£120k base + meaningful equity London-based, hybrid Direct influence at critical inflection point Work with experienced founders (CEO: 6x founder, ex-CPTO SuperAwesome acquired by Epic Games) Proven product-market fit, blue-chip clients Profitable, venture-backed, choosing our own path