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# Senior Java Developer

- **Company:** Service Planet Rotterdam B.V.
- **Location:** Rotterdam, Netherlands (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Linux, FreeBSD, Hibernate (Java), IP Multicasting, PostgreSQL, Message Queuing Telemetry Transport (MQTT), Prometheus, Grafana, Concurrency, Spring-boot, Front End Software Development, Grpc
- **Published:** June 11, 2026
- **Apply:** https://nl.indeed.com/viewjob?jk=22a59db81a2f90d5

## About the Role

* Je spreekt en schrijft vloeiend Nederlands (native level is een must).
 * Minimaal 6 jaar recente ervaring met Java, waarbij je meer hebt gedaan dan "alleen Spring Boot + Hibernate".
 * Solide kennis van algemene computing en *nix (Linux, FreeBSD, etc.): je voelt jecomfortabel in een terminal, kunt software uit source builden en basisproblemen (autoconf, C-tooling, segmentation faults, context switches) oplossen.
 * Je ontwerpt software die niet alleen "op jouw machine werkt", maar onderhoudbaar, voorspelbaar, schaalbaar en veilig is.
 * Afgeronde hbo- of wo-opleiding in een relevante richting.

## Description

* Werk je grotendeels zelfstandig aan duidelijk afgebakende technische projecten (API's, protocollen, infrastructuurkoppelingen, tooling).
 * Ontwikkel je Java-oplossingen die verder gaan dan "standaard Spring Boot + Hibernate": denk aan veilige SSD-wipe tooling, Java-gebaseerde IoT-oplossingen met MQTT en gRPC, PC factory image-restore via IPv6 multicast met Netty, of een PAM-module om met Google-authenticatie op Linux in te loggen.
 * Onderhoud en bouw je mee aan een op htmx gebaseerde web-frontend (voornamelijk in Java).
 * Denk je actief mee over betrouwbaarheid, schaalbaarheid, security en maintainability van onze systemen (monitoring, tracing, foutafhandeling, concurrency, netwerk-impact).

Onze tech stack (selectie)

 * Java: Java 21 en 25, Netty, JOOQ, gRPC-Java, Micrometer, Java Flight Recorder, Dagger, Spring.
 * Infra & tooling: Linux, FreeBSD, illumos/Triton, containers, PostgreSQL, MQTT/HiveMQ, Grafana, Prometheus, Envoy, OpenBao, OpenTofu.
 * Eigen infrastructuur: eigen omgeving bij Smartdc in de Van Nelle Fabriek en een moderne container-omgeving.


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