Senior Backend Engineer (Java / Spring)
publiée le 6/22/2026 2:16:38 PM
For one of our clients in the Brussels area, we are currently looking for a Senior Backend Engineer (Java / Spring) to join a digital transformation initiative and contribute to the development of a next-generation digital platform. What you’ll work on: - Designing and building scalable backend services and REST APIs - Developing integration components and backend-for-frontend (BFF) capabilities - Contributing to API lifecycle management and architecture decisions - Working on secure, reliable, and high-performing distributed systems - Participating in technical discussions, code reviews, and PoCs - Collaborating closely with architects and development teams What we’re looking for: - Strong experience in Java + Spring Framework - Solid background in API development and system integrations - Experience with REST APIs, OAuth2, OpenID Connect, JWT - Knowledge of IBM MQ / MQ Series and enterprise environments - Understanding of microservices / service-oriented architectures - Experience working in Agile environments - Strong mindset around code quality, testing, and reliability Languages: - Dutch or French (one is mandatory) - English Presence: Minimum 2 days onsite per week after onboarding Contract: Freelance – initial 6 months (extensions possible) Contact: hafsa@synctiv.be Brussels Area
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