A leading Professional Services company is seeking a Data Test Engineer Java on a contract basis. You will be needed to work onsite in London twice a week. The Data Test Engineer is responsible for validating the quality, reliability, and performance of D2C Reporting APIs delivered on the ODS platform. The role focuses on testing Java-based APIs, event-driven streaming pipelines using Kafka, Flink and Kafka Streams, and data persistence in MongoDB. You will design and execute functional, integration, and non-functional tests, validate data accuracy and event flows, and support production-readiness through automated testing and quality controls on OpenShift. Key Skills: Kafka Java Flink Migration testing Data ..... full job details .....