Role: Backend Developer Contract: 6 months Location: Canary Wharf, London Working model: Hybrid - 3 days onsite We're looking for a talented Backend developer with strong Java and Node.js/TypeScript experience to join a dynamic development team within a leading financial services organisation. This role is ideal for someone who enjoys working across both backend development and infrastructure, collaborating with centralised DevOps teams, and contributing to modern, large-scale financial services platforms. What You'll Do Maintain and enhance scalable back-end applications using Java, Node.js, and TypeScript. Lead the migration of existing Node.js systems into Java to align with bank-wide infrastructure strategy. Work closely with DevOps teams, utilising Docker and Kubernetes for containerisation and deployments. Build and maintain CI/CD pipelines (GitHub Actions). Monitor and optimise system performance and uptime. Write robust unit and integration tests to ensure high code quality. Collaborate with cross-functional teams to define, design, and deliver new features.What We're Looking For 5 years' experience as a Java & Node.js/TypeScript developer. Hands-on experience with Docker, Kubernetes, GitHub Actions (CI/CD). Strong knowledge of SQL databases. Proven track record writing unit & integration tests. Strong problem-solving skills, with the ability to meet deadlines in collaborative environments.Nice-to-Have Skills Experience with Snowflake (cloud data warehousing). GraphQL API development experience.This is an urgent vacancy. If you are interested then please apply directly to the ad Randstad Technologies is acting as an Employment Business in relation to this vacancy