Senior Java Developer

Médiane Benelux; Brussel; Sur place; EUR 90 000 - 150 000; Plein temps

Résumé du poste

Médiane Benelux is seeking an experienced Senior Java Developer to join a dynamic ICT team in Brussels. You will design, develop, and maintain critical Java applications supporting digital transformation in the railway sector, working within an Agile/Scrum environment and adhering to strict security and quality standards.

You will contribute to high-impact projects, collaborating with software engineers and analysts, and will be expected to demonstrate leadership, clear communication, and a

Qualifications

• Extensive Java development experience in enterprise settings.
• Strong knowledge of Spring, Hibernate/JPA, and JUnit/Mockito.
• Proven track record with CI/CD and DevOps practices.
• Experience with database systems like PostgreSQL, MySQL, or Oracle.

Responsabilités

• Design, develop, and maintain Java applications in an Agile team.
• Ensure high-quality code with tests and proper documentation.
• Apply TDD and contribute to continuous improvement.
• Participate in Scrum ceremonies and DevOps initiatives.
• Implement CI/CD pipelines for automated deployment.
• Troubleshoot complex issues and optimize performance.
• Maintain secure, maintainable code compliant with standards.

Connaissances

French or Dutch fluency

Strong communication

Team collaboration

Autonomy

Outils

Java (v8+)

Java development & bug fixing

Spring Framework

Test-Driven Development (JUnit, Mockito)

CI/CD tools (Git, Jenkins, Artifactory)

DevOps principles

Hibernate & JPA

SQL databases (PostgreSQL, MySQL, Oracle)

Description du poste

Médiane Benelux: Career Booster!

Since 2017, and with over 35 years of experience in France and Italy, Médiane Benelux is an engineering company specializing in software, electronics, and cybersecurity across key sectors such as Railways, Automotive, Energy, Medical, Aerospace, Space, Telecoms, Industry, and Defense.

What we offer:

• IT consulting and strategy
• Digital transformation and IoT solutions
• Project management and process optimization

As specialists in electronics, development, and embedded systems design, we operate from sensor to cloud.

Why choose Médiane Benelux?

• Human-sized company: Promotes teamwork and collaboration in a dynamic and stimulating environment
• Sharp technical expertise and tailored solutions for each sector
• Talent support: Personalized follow-up, continuous training, and skill development for our employees
• Custom solutions tailored to the specific needs of each client
• Culture of innovation: Participation in innovative and varied projects
• Ecovadis Gold certification: Commitment to equality, well-being, and responsibility
• Human values: Commitment, Respect, Trust, Listening

Happy at Work and Happy Clients labels by Choose my Company: A fulfilling work environment and optimal client satisfaction

Le poste :

We are seeking an experienced Senior Java Developer to join a team responsible for designing, developing, and maintaining critical applications supporting digital transformation and operational excellence in the railway ICT sector.

The consultant will contribute to high-impact projects within a dynamic ICT environment, working in an Agile/Scrum team of software engineers and analysts. All developments must adhere to the highest standards of security, quality, and reliability.

The ideal candidate will demonstrate:

• Understanding of the sector's IT landscape, strategic challenges, and operational environment.
• Ability to integrate seamlessly into teams while embodying core professional values: benevolence, courage, positivity, and reliability.
• Professional excellence and behavioral fit, including clear communication, strong presentation skills, respect for management, and responsible commitment for the project duration.

Key Responsibilities

• Design, develop, and maintain Java applications.
• Ensure high-quality code through rigorous testing and documentation.
• Apply Test-Driven Development (TDD) principles to maintain software reliability.
• Participate in Agile/Scrum ceremonies and contribute to continuous improvement initiatives.
• Implement CI/CD pipelines and DevOps practices for enhanced automation and deployment.
• Troubleshoot and resolve complex bugs and performance issues.
• Maintain a secure, maintainable, and well-structured codebase compliant with internal standards.

Profil recherché :

Required Technical Skills

• Java (v8 or higher) – minimum 10 years' experience
• Java development & bug fixing – minimum 15 years' experience
• Spring Framework – minimum 15 years' experience
• Test-Driven Development (JUnit, Mockito, etc.) – minimum 10 years' experience
• CI/CD tools (Git, Jenkins, Artifactory) – minimum 10 years' experience
• DevOps principles – minimum 10 years' experience
• Hibernate & JPA – minimum 15 years' experience
• SQL databases (PostgreSQL, MySQL, Oracle) – minimum 15 years' experience

Languages

• Fluent in French or Dutch – level C1
• Good knowledge of the second national language – level B1

Soft Skills

• Strong team spirit and excellent communication skills
• Proactive, solution-oriented mindset
• Autonomy, precision, and reliability in execution
• Ability to document and comply with quality and security norms (ISO 9001, ISO 27001, EN 50.128)
• Continuous learning attitude and adaptability to new technologies