Freelance Backend Developer (Java) – Digital Products
Brussels, Belgium
Start: June 2026 | Long-term freelance assignment
Full-time | Hybrid (2 days onsite + remote)
About the Role
Join a leading media organization and help shape the digital experience of millions of users. As a Backend Developer, you will contribute to the systems behind widely used digital platforms, ensuring performance, scalability, and reliability.
You’ll be part of a dynamic product team responsible for critical services such as user authentication, profile management, and push notifications across multiple digital applications.
Your Responsibilities
* Take end-to-end ownership: from concept and development to testing and release
* Build and maintain high-quality, scalable backend systems
* Develop and integrate RESTful APIs and/or event-driven architectures
* Contribute to architecture decisions and best practices
* Work within a Scrum/Agile environment
* Support CI/CD pipelines, monitoring, and infrastructure as code
* Ensure code quality through testing (unit, integration, E2E)
* Collaborate closely with team members and share knowledge
Tech Stack
* Languages: Java (Spring Boot, Spring Security, Spring Data, Hibernate/JPA), Go, TypeScript, JavaScript
* Cloud: AWS (ECS, Lambda, S3, DynamoDB, )
* Identity & Security: OIDC, OAuth2, SAP Customer Data Cloud (Gigya)
* Testing: JUnit, Mockito, Jest, Playwright
* Tools: GitHub, Jenkins, Docker
Your Profile
Must-Have
* Minimum 3 years’ experience as a Backend Developer
* Strong expertise in Java (Spring ecosystem)
* Experience with REST APIs and/or event-driven systems
* Familiar with Git and code reviews
* Solid knowledge of testing (unit, integration, E2E)
* Ability to work independently and in a team
Nice to Have
* Experience with AWS or other cloud platforms
* Knowledge of Go
* Experience with identity & access management (OIDC, OAuth2, SAML)
* Familiarity with CI/CD, DevOps practices, and infrastructure as code
* Experience working in Agile/Scrum teams
* Knowledge of JavaScript/TypeScript
* Fluent in Dutch (C2 level)
What’s in It for You
* Work on platforms used by millions of users daily
* Join a collaborative, innovative, and people‑oriented team
* Flexible hybrid working model
* Opportunities to learn, experiment, and grow technically
* Long‑term freelance engagement with potential extensions
Additional Info
* Freelance contract via intermediary
* Full‑time engagement
* Hybrid work setup (Brussels + remote)
#J-18808-Ljbffr