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[Freelance Senior Full Stack Java Developer]

location_onBrussels
labelFreelancer
access_timeFulltime
location_onBrussels
labelFreelancer
access_timeFulltime

Itenium connects you with projects that fit your expertise and preferences, so you can focus on delivering quality while we take care of the right opportunity.

What you will do

  • Develop and maintain front-end and back-end components with Java 17+ and Angular 18+ in an Agile/Scrum team
  • Build new features and analyse and fix bugs across the full stack
  • Write automated tests following a test-driven development approach
  • Apply DDD, hexagonal architecture and (micro)services with RESTful APIs and event-based programming over Kafka and MQ
  • Handle releases through a GitLab and Jenkins CI/CD pipeline with Maven, Gradle and Artifactory
  • Take part in code reviews, technical documentation and Agile ceremonies

Who we are looking for

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Experience

You are a senior full stack developer with 10 to 15 years of experience. You are strong in Java 17+, the Spring ecosystem (Spring Boot, Spring Data JPA, Spring Security), Hibernate and relational databases (Oracle, MySQL or PostgreSQL), as well as Angular 18+ with PrimeNG, Docker and some Kubernetes.

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Languages

You are a native Dutch or French speaker (C2) and comfortable in English at B2 level, with English as the project language in mixed-language teams.

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Hybrid work

To be agreed with the client.

What our freelancers say…

Ready to apply?

Excited about this role? We’d love to hear from you!

Jelle Muijzelaar

IT Talent Specialist

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About Itenium

Founded in 2018 by consultants, for consultants, Itenium is driven by the belief that things can always be better (nominated for Trends Gazellen 2025!). From our office in Mechelen, our 50+ consultants support companies across Belgium to build software solutions that truly work.

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Our expertise

.NET, Java, JavaScript (Angular, React), Cloud (Azure, AWS, Kubernetes), DevOps, Product Ownership, Analysis, and Test Automation.

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Our approach

Quality first—with real attention to our people. Our consultants are true experts, above-average senior IT profiles. We invest in personal growth through training and one-on-one coaching. Our motto says it all: “committed to pushing you forward.”

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Apply spontaneously

We’re always on the lookout for talented and passionate individuals to join our team. Don’t see the perfect role listed? Send us your spontaneous application and discover what we can create together!