Senior Backend Engineer – Welwyn Garden City

A senior backend engineer in Welwyn Garden City works within an Agile team to develop and maintain Tesco's experience API, supporting various shopping platforms. They collaborate with product managers to understand requirements and translate them into functional systems while ensuring code quality, security, and maintainability. The role involves designing scalable backend services using JavaScript, TypeScript, and Node.js, with a focus on automation, testing, and optimisation. The engineer is expected to support production systems, resolve incidents, and share knowledge with peers. Familiarity with microservices, cloud deployment, and DevOps practices is essential, alongside experience with various JavaScript frameworks and messaging systems.