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Development & engineering

Hire freelance Java developers in Belgium

From enterprise back-ends to event-driven microservices: find freelance Java developers for banking, government, telecom and product teams across Belgium.

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  • 2950+ vetted IT freelancers in Belgium
  • 10 min to notify the best-matching freelancers
  • 8% average fee, no cure no pay
Typical assignments

What a freelance Java developer can do for you

  • Spring Boot services

    Design and build back-end services and REST APIs with Spring Boot, JPA/Hibernate and relational databases.

  • Event-driven architecture

    Connect systems with Kafka or other message brokers and keep data flowing reliably between services.

  • Cloud and containers

    Package applications in Docker, run them on Kubernetes or OpenShift and set up CI/CD pipelines.

Skills

Skills companies ask for in Java developers

The technologies and skills that come up most in roles like this. Need something else? Name it in your job description: the AI matching reads the whole role, not just keywords.

  • Java 17+
  • Spring Boot
  • Spring Cloud
  • Hibernate / JPA
  • Kafka
  • Kubernetes
  • Maven / Gradle
  • JUnit
  • Oracle / PostgreSQL
How it works

Hire a freelance Java developer in four steps

You send the role, we double-vet the candidates. First with AI, then by our team.

  1. Send your job description

    Upload it, e-mail it, send it on WhatsApp or simply put us in CC.

  2. AI powered

    AI does the matching

    AI scans 2950+ vetted freelancers and notifies the most relevant Java developers within 10 minutes.

  3. Human powered

    Our team refines the shortlist

    We check availability, rate and fit, so you only see candidates worth your time.

  4. Interview and start

    Meet the candidates, pick your freelancer and we handle the contract and payments.

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FAQ

Hiring freelance Java developers: your questions answered

What does a freelance Java developer do?

A freelance Java developer designs, builds and maintains server-side applications in Java, often with Spring Boot. Typical assignments cover REST APIs, integrations, batch processing, microservices and the migration of older Java EE applications.

Can I find Java developers with experience in my sector?

Yes. Name the sector in your job description (finance, public sector, telecom, logistics…) and the matching gives weight to relevant domain experience next to the technical stack.

Do Java freelancers work on-site, hybrid or remote?

That depends on the freelancer and on your needs. State your on-site days and location in the job description, and only freelancers who can work that way are put forward.

How much does it cost to hire a freelance Java developer through Staff-IT?

You pay the freelancer’s day rate plus an average Staff-IT fee of 8%, shown transparently up front. It is no cure no pay: if no one is hired, you pay nothing. Staff-IT handles the contracts and the payment flow.

How fast can I hire a freelance Java developer?

Send the role and Staff-IT’s AI notifies the best-matching Java developers within 10 minutes. Our team then checks availability and fit, so you can usually start interviewing within days.

Development & engineering

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