Java Back-End Developer (Azure / AWS) – Contract | London (Hybrid) Contract: 12 months IR35: Outside IR35 Location: London (Hybrid – 3 days onsite) We are supporting a consultancy delivering enterprise-scale technology programmes for a major client. They are seeking an experienced Java Back-End Developer with strong cloud (Azure/AWS) expertise to join a long-term engagement working on modern, microservices-based systems. This role suits a senior engineer who enjoys hands-on development, cloud-native architectures, and working within agile, high-performing teams. Key Responsibilities Collaborate closely with fellow developers and technical stakeholders Design and implement microservices using the Spring Boot framework Work across the full Software Development Life Cycle (SDLC) Integrate microservices with databases and external systems Work with streaming technologies such as Kafka Build and maintain CI/CD pipelines in Azure and/or AWS Identify, troubleshoot, and resolve software defects Write and maintain automated test cases to ensure design and quality standards are met Produce clear and well-structured technical documentation for microservices ✅ Essential Skills & Experience Strong development experience with Java (SDK 8 or later) Proven experience building microservices using Spring Boot Hands-on experience with Azure or AWS, including service integration and development Experience working with relational databases (Oracle or similar) Understanding of Agile methodologies and the full SDLC Strong analytical and problem-solving skills Proactive, delivery-focused mindset with a positive attitude ⭐ Desirable (Nice to Have) Front-end development experience with React Familiarity with financial markets, instruments, or trade lifecycle Ability to write and optimise SQL Experience with event-driven or streaming architectures Qualifications & Background Bachelor’s degree in Computer Science or a related discipline 10 years of overall IT industry experience Proven experience working in Agile delivery environments Strong track record of collaborating effectively within high-performing teams Why Consider This Role? Long-term Outside IR35 contract Opportunity to work on complex, enterprise-scale systems Hybrid working model based in London Consultancy-led environment with strong engineering standards Interested? Apply with your CV or contact us for a confidential discussion.