We're looking for an experienced Backend Java Developer to help shape and build risk management solutions within one of Belgium's banks modular, modern architecture. Logistics: Position: Freelance Backend Java Developer Duration: 24-Month Contract Location: Brussels (Hybrid – 2 days/week on-site) Languages: English and French or Dutch Start Date: Beginning of April Day Rate: €(Negotiable & Competitive) Core Responsibilities: Design and develop performant and scalable backend solutions in Java using Spring Boot Contribute to greenfield-style development projects in a modular, service-oriented environment Translate business needs into technical design in close collaboration with product and risk teams Apply clean coding principles, test-driven development, and pair programming practices Maintain and evolve backend architecture following DDD and hexagonal patterns Support CI/CD delivery pipelines and containerized deployments Participate actively in code reviews, squad rituals, and design discussions Essential Skills: 6 years of hands-on backend Java development Expert knowledge of Spring Boot Familiarity with Kafka for event-driven architecture Solid understanding of container orchestration (Kubernetes) Proficient in RESTful APIs and relational databases (Oracle) Experience with TDD, pair programming, and modern SDLC practices Knowledge of tools like Git, GitLab, Jenkins, SonarQube, Nexus, Fortify Strong communication skills and ability to deliver autonomously within agile squads Desirable Skills: Experience in financial services or risk-related domains Understanding of domain-driven design and monolith-to-modular transitions Background in CI/CD, DevSecOps, and security-first coding Exposure to greenfield software architecture or legacy refactoring projects Prior engagement with Spotify-model squad structures What You Bring: A pragmatic mindset and passion for clean, maintainable code Autonomy and ownership over your work Strong collaboration and cross-functional communication skills Enthusiasm for working in a modern, forward-thinking Java engineering environment Interested? Reach out today to secure an interview, and be part of a technically exciting and business-critical initiative in the heart of Brussels.