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.
Work on cutting-edge trading infrastructure powering real-time post-trade processes worldwide, enabling advanced financial operations for leading institutions. This is your opportunity to make an impact on mission-critical systems in a highly dynamic, global environment.
Responsibilities
Design and develop Java-based backend solutions for post-trade processing systems
Translate business and regulatory requirements into secure and scalable solutions
Ensure compliance with internal security policies and external financial regulations
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
Contribute to the reliability and stability of mission-critical systems used by leading financial institutions
Support system integration and event-driven architecture for seamless messaging between components
Participate in code reviews and apply development best practices for maintainability and performance
Requirements
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
Experience designing and maintaining large-scale event-driven architectures and messaging systems
Understanding of security and compliance governance in financial systems
Strong problem-solving and troubleshooting skills in production environments
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)
Nice to have
Exposure to Angular or other modern front-end frameworks
Familiarity with financial messaging protocols (e.g., FIX, SWIFT)
Knowledge of post-trade processing and regulatory requirements in capital markets