B2B | Java Developer | Hybrid Brussels

Optiwisers; Brussel; Sur place; EUR 65 000 - 90 000; Plein temps

Résumé du poste

Optiwisers is seeking an experienced Java developer to join an international client in the Railway Infrastructure & Transportation sector. You will analyze requirements, translate them into technical solutions, and contribute to the development and optimization of complex Java applications.

Ideally you have at least 5 years of professional Java experience, familiarity with Java 6, JavaFX and Swing, and strong communication in Dutch or French plus English.

Qualifications

• Minimum 5 years of professional Java development experience.
• Experience with Java 6, JavaFX and Swing.
• Fluent Dutch or French and strong English communication skills.
• Experience working in a Scrum/LeSS environment.

Responsabilités

• 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

Connaissances

Java

JavaFX

Swing

Mentoring

Scrum/LeSS

Description du poste

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.

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
• Minimum 5 years of professional experience in Java development
• JavaFX
• Swing
• Fluent Dutch or French and strong English communication skills

Nice to Have

• CI/CD experience
• 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.