Join an impactful freelance mission at one of Belgium’s top-tier banks!We're looking for an experienced Backend Java Developer to help shape and build risk management solutions within a leading banking partner's modular, modern architecture.Logistics:- Position: Freelance Backend Java Developer- Duration: 24-Month Contract- Location: Brussels (Hybrid – 2 days/week on-site)- Languages: English (French and/or Dutch is a plus)- Start Date: 10 July 2025- 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 containerised deployments- Participate actively in code reviews, squad rituals, and design discussionsEssential 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 squadsDesirable 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 structuresWhat 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 environmentInterested?Reach out today to secure an interview, and be part of a technically exciting and business-critical initiative in the heart of Brussels.