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# Java Backend Developer

- **Company:** Constaff GmbH
- **Location:** Frankfurt am Main, Germany
- **Experience:** Expert
- **Contract:** Temporary contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Automation of Tests, Unit Testing, Cloud Computing, Cloud Engineering, Code Review, Distributed Systems, Apache Maven, MongoDB, Oracle (Applications), Scrum Methodology, Redis, TypeScript, Spring-boot, Backend, Gitlab, Git, Kubernetes, Apache Kafka, Restful APIs, Cucumber (Software), Code Restructuring, Docker, Microservices
- **Published:** September 16, 2026
- **Apply:** https://www.arbeitsagentur.de/jobsuche/jobdetail/10001-1003703361-S

## About the Role

Fundierte Erfahrung mit Java 21, Spring Boot und WebFlux

 - Erfahrung mit REST, Microservices und API-Entwicklung
 - Kenntnisse in Docker, Kubernetes und AWS
 - Erfahrung mit TDD, Testautomatisierung, CI und Git
 - Kenntnisse in Cucumber / BDD
 - Erfahrung mit Legacy Code, Refactoring und Code Reviews
 - Agile Arbeitsweise, analytisches Denken und Teamfähigkei, Maven / Ant, TypeScript
 - Oracle, Redis, MongoDB
 - Kafka und Event-Driven-Architekturen
 - GitLab Enterprise, Graylog
 - Erfahrung im Cloud-Native-Umfeld und mit Buchungs-/Vertriebssystemen

## Description

Entwicklung und Weiterentwicklung von Java-Backend-Services und Microservices

 - Umsetzung von REST-APIs und Schnittstellen
 - Technische Analyse und Umsetzung von Anforderungen
 - Entwicklung automatisierter Unit-, Integrations- und Komponententests
 - Durchführung von Code Reviews und Refactoring
 - Mitarbeit an Docker-/Kubernetes- und Cloud-Lösungen
 - Fehleranalyse, Monitoring und technische Dokumentation
 - Zusammenarbeit im agilen Scrum-Team


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