Senior Backend Engineer - Welwyn Garden City

A senior backend engineer at Tesco UK works within an agile team to develop and maintain high-traffic, scalable backend services using JavaScript, Typescript, and Node.js. They collaborate with product managers to understand requirements, translate them into technical solutions, and implement best practices in security, testing, and deployment. The role involves designing microservices, working with cloud platforms like Azure, and employing containerisation with Docker and Kubernetes. Candidates are expected to have extensive experience in backend development, REST and GraphQL APIs, and distributed messaging and caching systems. They also support production systems, diagnose complex issues, and mentor junior engineers to enhance team capability.