Hiring Freelance Senior Java DevelopersWe are looking for a Senior Java Developer to join a long-term project for a leading financial institution.Location: MadridRemote: 100% remoteDuration: Long-termEnglish: C1+ Requirements8+ years of professional experience with Java3+ years working with Java 17 or 21Strong experience with Spring / Spring BootExperience with KafkaExperience with Redis and PostgreSQL or MongoDBStrong testing experience with JUnit 5 and MockitoExperience with AWS or equivalent cloud environmentsKnowledge of streaming and microservices architectures Nice to haveExperience leading complex migrations or refactoring projectsMultimodule Java applicationsDocker / containerization and multi-architecture imagesPython knowledgeTechnical test: YesClient interview: YesIf you are interested do not hesitate to send me your most updated CV al