Senior Backend Engineer – Welwyn Garden City

A senior backend engineer at Tesco UK develops and maintains scalable backend systems using JavaScript, Typescript, and Node.js. The role involves collaborating with product managers to translate requirements into robust software solutions that support Tesco's shopping experiences. Candidates are expected to have extensive experience with cloud technologies, microservices architecture, and modern development practices including TDD and security. They will support deployment and incident management, ensuring high availability and performance while sharing knowledge with peers. The position requires good understanding of distributed messaging, caching technologies, and container orchestration. The engineer will also prototype new tools and mentor team members to foster technical excellence.