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# Senior Java / Middleware Developer - EAI Modernisierung

- **Company:** GULP Information Services GmbH
- **Location:** Hamburg, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Continuous Integration, Middleware, Github, Java Message Service (JMS), Apache Maven, OpenShift, Oracle (Applications), Simple Object Access Protocol (SOAP), Software Engineering, Software Systems, Web Services, Spring-boot, Git, Kubernetes, Information Technology, Apache Kafka, Api Design, Restful APIs, Docker, Jenkins, Microservices
- **Published:** July 23, 2026
- **Apply:** https://www.gulp.de/gulp2/g/jobs/C01311682

## About the Role

* Ausbildung: Abgeschlossenes Studium der (Wirtschafts-)Informatik (Master/Diplom) oder eine vergleichbare Qualifikation.
 * Berufserfahrung: Mindestens 5 Jahre Erfahrung in der Softwareentwicklung mit Java, idealerweise in großen Enterprise-Anwendungen.
 * EAI & Middleware: Fundierte Erfahrung in der Entwicklung von Integrationslösungen, vorzugsweise mit Java-basierten, proprietären oder individuell angepassten Middleware-/Broker-Lösungen.
 * Messaging & Event-driven: Sehr gute Kenntnisse der JMS-API, Erfahrung mit Oracle AQ (oder vergleichbaren relationalen Messaging-Systemen) sowie der Nutzung der Kafka-API für eventgetriebene Architekturen.
 * Frameworks & Web Services: Sehr gute Kenntnisse in REST und SOAP (API-Design, Security) sowie fundierte Erfahrung mit Spring Boot Microservices (REST-APIs, Security, Observability).
 * Container & CI/CD: Hands-on-Erfahrung mit Docker, Kubernetes-Plattformen (insb. OpenShift) und CI/CD-Pipelines (z. B. Jenkins, GitHub Actions, Maven, Git).
 * Sprachkenntnisse: Verhandlungssichere Deutschkenntnisse in Wort und Schrift für die enge Abstimmung mit Fachbereichen und Architekturteams.
 * Soft Skills & Besonderheiten

## Description

Das Projekt umfasst die Weiterentwicklung, Wartung und schrittweise Neuausrichtung der zentralen Schnittstellenarchitektur (EAI).


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