We are supporting a leading Belgian bank on several business-critical digital initiatives. We are looking for an experienced Backend Java Developer with a good understanding of frontend technologies to join a modern, modular engineering environment.
Logistics
* Role: Freelance Backend Java Developer
* Contract: 24 months (liklihood of extension)
* Location: Brussels (Hybrid - 2 days/week on-site)
* Languages: English + French or Dutch
* Start Date: End of February
* Rate: Competitive & negotiable
Responsibilities
* Develop and maintain scalable backend services using Java and Spring Boot
* Contribute to greenfield and platform evolution projects
* Translate business and regulatory needs into technical solutions
* Apply clean code practices, TDD, and pair programming
* Support and evolve architecture using DDD and hexagonal principles
* Work with CI/CD pipelines and containerized environments
* Participate in code reviews and agile ceremonies
* Collaborate with frontend teams when needed
Required Skills
* 6+ years of backend Java experience
* Strong Spring Boot expertise
* Experience with Kafka or event-driven systems
* Solid knowledge of REST APIs and relational databases (Oracle preferred)
* Experience with Docker and Kubernetes
* Familiarity with CI/CD, Git, GitLab, Jenkins, SonarQube
* Working knowledge of frontend technologies (Angular, React, TypeScript)
* Comfortable working autonomously in Agile teams
Nice to Have
* Experience in banking, financial services, or risk domains
* Exposure to legacy modernization or modularization
* Knowledge of DevSecOps or security-by-design
* Experience in Spotify-model squads
Interested? Get in touch to discuss details and next steps.