Senior Real-Time Rail Java Tech Lead (On-Call)

Médiane Système limited; Brussel; On-site; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Salary package

Mobility package

Health insurance

Meal vouchers

Job summary

Médiane Benelux is seeking a Senior Technical Lead (Java) to join a long-term program modernizing real-time control room systems for railway traffic. You will lead a hands-on full-stack Java squad within an Agile/Scrum environment, shaping architectures and delivering high-availability production software.

Requirements include 5–10 years in Java full‑stack roles, Java 17/21+, Docker, Kubernetes, OpenShift, and CI/CD with Jenkins and GitLab; plus Jira, Xray and Confluence.

Qualifications

• Master's degree in Computer Science or equivalent.
• 5–10 years of experience as a Senior Java Full-Stack Engineer or Technical Lead.
• Confirmed experience in Agile/Scrum (Scrum Master certification is a plus).

Responsibilities

• Act as Technical Lead within a full-stack Java squad.
• Design, develop, and maintain complex real-time applications, including new features and refactoring.
• Ensure performance, reliability, and high availability of production systems.
• Support and coach developers through strong technical expertise.
• Promote clean, readable, and reusable code.
• Produce and maintain technical and functional documentation.
• Apply internal guidelines, standards, and procedures.
• After onboarding, participate in a 24/7 on-call rotation (approx. one week every eight weeks).

Skills

Java 17

Java 21+

Full-stack engineering

Agile/Scrum

Team leadership

Education

Master's degree in Computer Science

Tools

Docker

Kubernetes

OpenShift

Eclipse RCP

Hazelcast

Tibco RDV

Jira

Xray

Confluence

GitLab

Job description

Médiane Benelux is seeking a Senior Technical Lead (Java) to join a long-term program modernizing real-time control room systems for railway traffic. You will lead a hands-on full-stack Java squad within an Agile/Scrum environment, shaping architectures and delivering high-availability production software.

Requirements include 5–10 years in Java full‑stack roles, Java 17/21+, Docker, Kubernetes, OpenShift, and CI/CD with Jenkins and GitLab; plus Jira, Xray and Confluence.