Java backend developer - open banking M/F

Join the Digital IT department of a leading Luxembourg bank and become part of the Open Banking team. He deliver innovative financial platforms and digital banking features through Agile, self-organized product teams. You will work on strategic projects for Open Banking and Open Finance, maintaining our current platform and building new services that comply with PSD2 regulations.

Your responsibilities:

• Analyze business needs and translate them into technical solutions
• Design and develop secure APIs and microservices using Java 17+ and Spring Boot
• Implement features aligned with Berlin Group NextGenPSD2 standards
• Write automated tests (TDD/BDD) and ensure code quality
• Collaborate in Agile ceremonies and share knowledge within the Dev Community
• Support Third-Party Providers (TPPs) and troubleshoot integration issues
• Contribute to CI/CD pipelines and DevOps practices

• Minimum 5 years of experience in IT development
• Strong expertise in Java 17+, Spring Boot, and microservices architecture
• Proven banking experience (mandatory)
• Knowledge of PSD2, Open Banking concepts, and Berlin Group standards
• Familiarity with TDD/BDD, DevOps, and CI/CD tools
• Fluent in English and French (spoken and written)
• Passionate about software craftsmanship and continuous improvement

• Experience with OAuth2, eIDAS certificates, and secure API design
• Understanding of enterprise architecture and event-driven systems
• Previous experience on Open Banking projects (major advantage)

Location: Luxembourg
Contract: Freelance (3-month renewable contracts, mission expected to last minimum 12 months)