Senior Java Backend Engineer – Digital Platforms & Integration
Digital
Development
Secondary, Bachelor, Master
Advanced (5+)
- Location
- Anderlecht, Brussels-Capital
- Work type
- Consultancy
- Work model
- Fulltime, Hybrid
Our client is looking for a professional to design and evolve the backend foundations of a next-generation digital platform. The project involves building scalable APIs and Backend-for-Frontend capabilities to bridge digital channels and enterprise systems.
Responsibilities
- Design, develop, and maintain platform APIs, backend services, and integration components.
- Build scalable and maintainable Backend-for-Frontend (BFF) services to support multiple digital channels.
- Contribute to the evolution of the integration layer between digital platforms and partner ecosystems.
- Implement security protocols and authentication mechanisms including OAuth2 and JWT.
- Define API lifecycle management and versioning strategies to ensure consistency and reliability.
- Apply software engineering best practices and participate in code reviews and architecture design.
Requirements
- 8+ years backend development with Java and Spring Framework.
- 8+ years experience with Object Oriented design and architectural patterns.
- 5+ years working in an IBM Environment utilizing IBM MQ Series.
- 5+ years of experience in Quality Assurance and Software Testing.
- 5+ years with Web Services, REST APIs, and API lifecycle management.
- You bring expertise in Backend-for-Frontend (BFF) and cloud-based distributed architectures.
- You possess knowledge of security standards such as OAuth2, OpenID Connect, and JWT.
- You have experience in Agile workflows and design support tools such as SPARX.
- You're proactive, analytical, and comfortable challenging technical decisions constructively.
- You are fluent in English with professional proficiency in French or Dutch.
Nice to Haves
- Knowledge of monitoring, observability, and operational practices.
- Experience participating in architecture spikes and MVP development.
Offer
- Start date: ASAP
- Duration: 6 months
- Work regime: Full-time
- Location: Anderlecht
- Working model: Hybrid (minimum 2 days/week onsite)
- Contract: open to both permanent employees and freelancers
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