Senior Backend Engineer (Node.js) – Welwyn Garden City

A senior backend engineer at Tesco UK designs and develops scalable, reliable, and secure backend systems using technologies such as JavaScript, Typescript, Node.js, and cloud services. They collaborate with product managers to understand requirements, translate them into technical tasks, and produce maintainable and well-structured code following best practices like TDD, BDD, and security standards. The role involves debugging, supporting production systems, and sharing knowledge within the team to improve software quality and performance. Candidates are expected to have at least seven years of software development experience, with four years in backend development using relevant technologies and frameworks. They should possess strong problem-solving skills and experience with microservices, cloud deployment, containerization, and API development.