Java Backend Developer (Booking and Messaging)Rate: 625/day (Inside IR35) Duration: 6 Months Location: London (Hybrid)The RoleJoin a high-performance eBond Booking and Messaging team managing a complex trading platform. You will build and adapt trading workflows , ensuring seamless connectivity to external exchanges and managing trade booking systems. The environment features a modern microservices architecture, reactive programming, and a fully automated CI pipeline with weekly releases.Technical ProfileJava Expert: Java 8+, Multithreading, and RESTful Webservices.Messaging Pro: Deep knowledge of Pub-Sub and brokers like 60East AMPS, Kafka, or RabbitMQ.Reactive and Agile: Experience with Functional Reactive Programming (RxJava/Flow API) within an Agile/Scrum setup.Data and Systems: Proficiency in Spring, SQL (Sybase/PostgreSQL), and distributed systems (Zookeeper).Performance: Skilled in low-latency communication and debugging complex distributed systems.If interested, please apply here or send your updated resume to (url removed)Randstad Technologies is acting as an Employment Business in relation to this vacancy. ..... full job details .....