Remote Senior Java Software Engineer

We're looking for a Senior Software Engineer to join our team in Madrid, Spain in a hybrid working mode. In this role, you will design and implement high-performance backend solutions for post-trade processing systems used by global financial institutions. You'll translate complex business requirements into secure, scalable software while ensuring compliance with strict industry standards and regulations. This is your opportunity to make an impact on mission-critical systems in a highly dynamic, global environment. Design and develop Java-based backend solutions for post-trade processing systems Optimize database performance and ensure data integrity for high-volume transactions Work within agile frameworks (SCRUM/SAFe) in collaboration with developers, testers and business stakeholders Participate in code reviews and apply development best practices for maintainability and performance 10+ years of experience in high-performance, multi-threaded Java applications (Java 8+), with strong expertise in Spring Boot ~ Advanced knowledge of SQL, Hibernate and database optimization techniques ~ Solid experience in complex, mission-critical systems with a focus on performance and scalability ~ Effective communication and collaboration in cross-functional agile teams ~ Fluent English proficiency (written and spoken) Exposure to Angular or other modern front-end frameworks FIX, SWIFT) Private health insurance ~