Hiring Freelance Senior Java DevelopersWe are looking for a Senior Java Developer to join a long-term project for a leading financial institution.- Location: Madrid- Remote: 100% remote- Duration: Long-term- English: C1+Requirements- 8+ years of professional experience with Java- 3+ years working with Java 17 or 21- Strong experience with Spring / Spring Boot- Experience with Kafka- Experience with Redis and PostgreSQL or MongoDB- Strong testing experience with JUnit 5 and Mockito- Experience with AWS or equivalent cloud environments- Knowledge of streaming and microservices architecturesNice to have- Experience leading complex migrations or refactoring projects- Multimodule Java applications- Docker / containerization and multi-architecture images- Python knowledgeTechnical test: YesClient interview: YesIf you are interested do not hesitate to send me your most updated CV al