> Markdown version of [/jobs/ext/2999810-senior-java-engineer-scalable-microservices-remote](https://www.wearedevelopers.com/jobs/ext/2999810-senior-java-engineer-scalable-microservices-remote). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Engineer - Scalable Microservices (Remote) - **Company:** UST EspaƱa - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Cloud Engineering, Spring-boot, Backend, Apache Kafka, Reactive Programming, Grpc, Microservices - **Published:** September 19, 2026 - **Apply:** https://www.buscojobs.com.es/senior-java-engineer-scalable-microservices-remote-en-madrid-ID-370481657 ## About the Role The role emphasizes scalable architecture, reactive programming, gRPC, Kafka, and robust testing in production. Excellent English communication and collaboration across teams are essential. #J-*****-Ljbffr ## Description UST is a multinational technology services company seeking a Senior Java Developer to design, build, and evolve mission-critical backend systems.You will work on Java *****, Spring Boot, and microservices in a cloud-native, event-driven environment.The role emphasizes scalable architecture, reactive programming, gRPC, Kafka, and robust testing in production.Excellent English communication and collaboration across teams are essential.#J-*****-Ljbffr