B2B | Java Developer | Hybrid Brussels

Il y a 2 jours
Brussels, Brussels Capital, Belgique Optiwisers Temps plein

We're Hiring | Senior Fullstack Java Developer (Java 6 / JavaFX / Swing) | Brussels

We are hiring for an international client operating in the Railway Infrastructure & Transportation sector, supporting mission-critical applications used for transport planning and operational management.

Location: Brussels, Belgium (Hybrid - 2 days onsite/week)

Start Date: ASAP

Contract Type: B2B / Independent Freelancer

Duration: Long-term assignment

Languages: Dutch or French + very good English

What You'll Do

  • Analyze business requirements and translate them into technical solutions
  • Develop, maintain, and optimize complex Java applications
  • Work with legacy technologies including Java 6, JavaFX, and Swing
  • Contribute to test automation and CI/CD initiatives
  • Ensure code quality through Clean Code and SOLID principles
  • Collaborate in a Scrum/LeSS environment
  • Coach and mentor junior developers
  • Participate in an on-call rotation after training

Mandatory Skills

  • Minimum 5 years of professional experience in Java development
  • Strong Java development experience
  • Java 6
  • JavaFX
  • Swing
  • Fullstack development experience
  • Agile/Scrum methodology
  • Fluent Dutch or French and strong English communication skills

Nice to Have

  • CI/CD experience
  • Test automation
  • Clean Code & SOLID principles
  • Experience in large-scale enterprise environments
  • Mentoring/coaching experience

This opportunity is ideal for developers who enjoy working on complex enterprise systems and have hands-on experience with legacy Java technologies that remain essential to business-critical operations.

Interested? Apply directly via LinkedIn or send your updated CV to mariana.azevedo@optiwisers.com.

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