Medior Backend Developer
Summary
Builds and maintains mission-critical backend services for a Harbour Master system using Java/Kotlin, Spring Boot, and microservices, focusing on secure integrations and 24/7 reliability.
We’re Hiring: Medior Backend Developer – Java/Kotlin & Spring Boot
Are you an experienced backend developer who enjoys building reliable, secure and future-proof integrations? Do you thrive in a collaborative environment where technical expertise and a proactive mindset are equally valued?
For our PCM development team, we’re looking for a Medior Backend Developer to help develop and modernise HaMIS, a mission-critical system supporting the operational processes of the Harbour Master’s organisation.
What you’ll do
- Develop new functionality using Spring Boot, Java and Kotlin
- Build and optimise REST/SOAP integrations, messaging and event-driven architectures
- Work with microservices, automated testing and clean architecture
- Improve logging, monitoring, tracing and alerting
- Analyse and resolve production incidents and disruptions
- Contribute to technical solutions, innovation and continuous improvement
- Collaborate with developers, business consultants, testers and external stakeholders
What we’re looking for
- 3+ years of backend development experience with Java/Kotlin & Spring Boot
- 3+ years of experience with microservices, system integrations, testing and production troubleshooting
- Strong communication skills and a proactive, collaborative attitude
- Good command of Dutch
- Willingness to participate in an on-call rotation after training
- Experience with Kubernetes, CI/CD, GitLab, ActiveMQ, Grafana, Prometheus, ELK/OpenSearch, OpenTelemetry, API lifecycle management or 24/7 mission-critical environments is a strong plus.
If you’re a hands‑on backend developer who likes solving complex integration challenges while helping a team grow, we’d love to hear from you!