Lead Full Stack Engineer - React, Golang£Market RateLondon / Primarily Remote4 months initiallyMy client is an instantly recognisable consultancy who require a Lead Full Stack Engineer to join a business-critical programme for an end client.Key Responsibilities:Own end-to-end technical design and delivery across a TypeScript/React/Vite front end and Golang microservices within a multi-tenant SWaaS architecture.Define front-end module boundaries, API contracts (REST/gRPC), and state management; establish idiomatic Golang service structure, concurrency, and error-handling patterns.Act as hands-on Tech Lead, driving design reviews, PR approvals, and resolving technical blockers with the Senior FSE/Scrum Lead.Set and enforce engineering standards across TypeScript, React architecture, Vite builds, and testing (Vitest/Testing Library), alongside strong Golang test coverage.Design and manage CI/CD pipelines covering front-end optimisation, Golang builds, containerisation, and cloud deployment across key product workstreams.Collaborate cross-functionally with Architecture, Data Science, Product, and UX to integrate ML models and deliver FCA-aligned, performant, and accessible user experiences.Hays Specialist Recruitment Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept the TandC''s, Privacy Policy and Disclaimers which can be found at hays.co.uk