Full Stack Engineer(Java / React) Contract length: 12 months (extensions available) Location: Hybrid (travel to greater London once every two weeks) Clearance Required: SC Clearance IR35 determination: Inside Start date: ASAP A global consultancy is working with a government body seeking a Full Stack Engineer with expertise in Java, Spring Boot, and React experience to join their cross-functional delivery team. You will be working across the full development cycle maintaining and enhancing a critical legacy system, contributing to service improvement, and ensuring consistent delivery within a secure and regulated environment. Key Responsibilities Develop, maintain, and enhance features in a Java Spring Boot-based backend and a React/TypeScript frontend. Take ownership of a legacy service, including a legacy deployment model, and gradually modernize where feasible. Manage and resolve incidents, changes, service requests, and problem tickets. Engage in release management activities, including building and deploying packages to production. Drive continuous service improvement initiatives across processes and technology Write and maintain unit, integration, and feature/API tests Contribute to and update technical documentation and API specifications Collaborate with internal and external teams to maintain quality . Requirements SC Clearance Frontend development- React with TypeScript Backend development- Java / Spring Boot Node.js Hibernate /JPA AWS stack including Kubernetes, Open search, Jenkins, Git, SonarQube SQL Databases (e.g. AWS RDS, Aurora, PostgreSQL) Messaging technologies (E.G. AWS SNS, etc.) Docker Desired skills UI component development/documentation (storybook) GDS Design System Debezium Experience with legacy service models