> Markdown version of [/jobs/ext/2812271-senior-java-developer](https://www.wearedevelopers.com/jobs/ext/2812271-senior-java-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Java Developer

- **Company:** Médiane Système
- **Location:** Belgium
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Java (Programming Language), Agile Methodology, Automation of Tests, Cloud Computing, Software Quality, Code Review, DevOps, Hibernate (Java), Java Persistence API, Apache Maven, OpenShift, Scrum Methodology, SQL Databases, Git, AngularJS, Solid Principles, Kubernetes, Grpc, Jenkins, Microservices
- **Published:** September 10, 2026
- **Apply:** https://www.collegerecruiter.com/job/2858145041-senior-java-developer

## About the Role

Java 11+ (Java 21 exposure), Spring (Boot, Cloud, Security), Maven, JPA/Hibernate, REST & gRPC, SQL, Git/Jenkins, Kubernetes/OpenShift, Angular exposure, Agile/Scrum, DevOps.

Profile

10+ years of experience in Java development (expert level)

Strong background in large-scale, business-critical systems

Comfortable working in Agile environments

Analytical, proactive, quality-driven, with mentoring capabilities

Languages

French or Dutch: C2

Other national language: B1

English: B2

## Description

Our client, a key player in the railway infrastructure sector, is looking for a Senior Java Engineer to work on business-critical applications that consolidate infrastructure data and support real-time traffic planning and monitoring. You will design, develop, and maintain robust, scalable, and secure Java solutions within modern microservices-based architectures., * Design and implement new Java features and services

 * Maintain and evolve existing applications
 * Translate functional requirements into technical solutions
 * Investigate and resolve complex technical issues
 * Integrate automated tests and contribute to CI/CD pipelines
 * Ensure code quality (Clean Code, SOLID principles, security best practices)
 * Participate in code reviews and mentor developers


## Related Videos

- [Beam Me Up, Java! Unraveling the Warp-Speed Evolution: A Journey through Java LTS Versions 11 to 21](https://www.wearedevelopers.com/videos/658-beam-me-up-java-unraveling-the-warp-speed-evolution-a-journey-through-java-lts-versions-11-to-21)
- [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94)
- [Exploring the Power of gRPC-Gateway for Writing RESTful Services](https://www.wearedevelopers.com/videos/2072-exploring-the-power-of-grpc-gateway-for-writing-restful-services)
- [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform)
- [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company)
- [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews)

## Related Articles

- [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)
- [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for)
- [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)
- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [Software Developer Salary in The Netherlands [2023]](https://www.wearedevelopers.com/magazine/217-software-developer-salary-in-the-netherlands-2023)
- [The Netherlands – Europe’s powerhouse for software development?](https://www.wearedevelopers.com/magazine/31-the-netherlands-europe-s-powerhouse-for-software-development)