Senior Java Developer
Apply now for the Senior Java Developer role at Médiane Système.
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. With over 35 years of experience, we support digital transformation and embedded systems across Europe.
What We Offer
* IT consulting and strategy
* Digital transformation and IoT solutions
* Project management and process optimization
Why Choose Médiane Benelux
* Human‑sized company: promotes teamwork and collaboration in a dynamic environment
* Sharp technical expertise and tailored solutions for each sector
* Talent support: personalized follow‑up, continuous training and skill development
* Custom solutions tailored to each client’s needs
* Culture of innovation: participation in innovative projects
* Ecovadis Gold certification – commitment to equality, well‑being and responsibility
* Human values: commitment, respect, trust, listening
Job Purpose
We are seeking an experienced Senior Java Developer to design, develop and maintain critical applications supporting digital transformation and operational excellence in the railway ICT sector.
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.
Desired Candidate Profile
* Understanding of the sector’s IT landscape, strategic challenges and operational environment.
* Ability to integrate seamlessly into teams while embodying core 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.
Required Technical Skills
* Java (v8 or higher) – minimum 10 years
* Java development & bug fixing – minimum 15 years
* Spring Framework – minimum 15 years
* Test‑Driven Development (JUnit, Mockito, etc.) – minimum 10 years
* CI/CD tools (Git, Jenkins, Artifactory) – minimum 10 years
* DevOps principles – minimum 10 years
* Hibernate & JPA – minimum 15 years
* SQL databases (PostgreSQL, MySQL, Oracle) – minimum 15 years
* Fluent in French or Dutch – level C1
* Good knowledge of 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
Benefits
* Attractive salary package
* Additional legal days off
* Mobility package (transport or car)
* DKV, Group Insurance, Meal vouchers, Eco vouchers
* Training opportunities
Employment Details
* Seniority level: Mid‑Senior
* Employment type: Full‑time
* Job function: Information Technology and Engineering
* Industry: Software Development
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