Senior Java Developer (AWS/RxJava) UST España & Latam•Lugo, ES

Descripción del trabajo

We are still looking for the very Top Talent…and we would be delighted if you were to join our team More in detail, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35,000 employees worldwide and presence in more than 35 countries. We are leaders in digital technology services, providing large-scale technological solutions to some of the world's most renowned organizations.

Key Responsibilities
- Design, develop, and maintain robust backend services using Java 17/21 and Spring Boot.
- Build scalable and resilient microservices leveraging reactive programming principles.
- Develop and maintain gRPC APIs and Protobuf schemas, ensuring backward compatibility and proper schema evolution.
- Implement highly concurrent and performant solutions, applying advanced thread-safety and concurrency patterns.
- Work with Kafka-based event-driven architectures and production-scale data stores.




- Create and maintain automated testing suites, including unit, integration, and contract tests.
- Collaborate with cross-functional teams on architecture decisions, design reviews, and technical documentation.
- Participate in troubleshooting, root cause analysis, and postmortem activities.
- Contribute to CI/CD pipelines, cloud infrastructure, and containerized deployments.
- Produce clear technical documentation, design proposals, and pull request descriptions.

Mandatory Requirements
- 8+ years of professional experience with Java development.
- 3+ years of hands-on experience with Java 17 or Java 21, including modern language features such as records, sealed classes, pattern matching, and virtual threads when applicable.
- Strong expertise in Spring Framework and Spring Boot in production environments.
- Proven experience with reactive programming using Project Reactor or RxJava (Mono, Flux, backpressure, retry strategies,

📌 Senior Java Developer (Lugo)
🏢 UST España & Latam
📍 Lugo