We are looking for an experienced Senior Java Developer to join a DevOps team working on a business-critical backend platform that processes timetable and infrastructure information and makes it available in real time to operational systems. The platform consists of modern, independently deployable components and plays a key role in supporting day-to-day operations. As part of the current transformation roadmap, the team is focused on further developing the platform, supporting system integrations, migrating workloads from a private cloud environment to Azure/AKS, and delivering new functionality for critical operational processes, including ERTMS and integrated operational control. This role requires a hands-on senior engineer who can combine technical expertise with a pragmatic approach and contribute directly to the successful delivery of these initiatives.
Responsibilities:
- Develop Java and Spring Boot components and integrations to support further platform development;
- Support consuming systems in connecting to a new message format;
- Deliver the migration to Azure and Azure Kubernetes Service (AKS);
- Deliver new functionality for critical operational processes, including ERTMS and integrated operational control;
- Critically assess technical choices for simplicity, quality, and feasibility;
- Apply and promote modern engineering, testing, and DevOps practices within the team;
- Use AI tools purposefully for development, testing, refactoring, and analysis, and help the team adopt these practices;
- Work hands-on across the full software lifecycle, including design, development, testing, deployment, and continuous improvement;
- Work closely with technical leads while constructively challenging existing decisions and solution directions where appropriate;
- Help the team make stronger technical decisions and accelerate delivery from analysis to implementation.
- HBO or WO level of thinking and working (Bachelor's or Master's degree level);
- Minimum 5 years of recent experience as a Senior Java Developer in a complex IT environment;
- Deep, demonstrable hands-on experience with Java and Spring Boot;
- Extensive, demonstrable experience with Microsoft Azure and container platforms, preferably Azure Kubernetes Service (AKS);
- Extensive, demonstrable experience with asynchronous messaging, REST services, and integrations within distributed systems;
- Extensive, demonstrable experience with relational databases, preferably PostgreSQL;
- Demonstrable experience with automated testing, CI/CD, and DevOps practices;
- Experience working with business-critical software requiring high levels of availability and reliability;
- Demonstrable experience using AI tools responsibly and effectively within software development and coaching colleagues in their adoption;
- Excellent command of the Dutch language (mandatory);
- Hands-on, pragmatic, and results-oriented approach;
- Ability to move quickly from analysis to execution;
- Ability to influence colleagues through technical seniority and challenge existing ways of working constructively.
Preferred
- Experience with complex real-time or mission-critical systems, for example within rail, logistics, or traffic management environments;
- Experience with migrations from private cloud environments to Azure.
Additional Information
- Participation in an on-call support rotation is part of the assignment.
- This assignment is not open to freelancers, independent contractors, or self-employed professionals (ZZP).
All our positions are open to both women and men and are, of course, open to people with disabilities.
All our positions are open to both women and men and are, of course, open to people with disabilities.