Java Developer

About T-Systems

T-Systems is one of the leading providers of digital services, offering integrated end-to-end IT solutions and digital transformation of companies in all industries (automotive, financial services, healthcare, public sector, retail, manufacturing industry, transport, and logistics). We are your partner for digitalization.

Must-have Skills

•Good/excellent Java knowledge and specific experience with:•Threading, concurrent programming (java.util.concurrent.* packages)•Functional programming•Object-oriented programming•Maven & Eclipse

Good-to-have Skills

•Framework knowledge, Apache commons, log4j2, lombok, Jackson JSON parser (databind), CORBA (basic knowledge)•JUnit5 and Mockito•The ideal candidate has not only heard of GIT but also used it•SVN (Tortoise-SVN - it would be nice if it was already used in a project)•RabbitMQ A bit of basic knowledge should be available (overview and possibly usage).•It would be good if the person has also done 3rd-level support and looked for/ fixed some errors in the source code.•Security tools and frameworks, such as: B. KeyCloak would be advantageous.•Creating user interfaces in HTML (possibly Angular or similar) would be advantageous, but not a must.•Basic Cloud knowledge would also be beneficial.•XML (Maven POM file) and JSON – Knowledge (for RabbitMQ communication) would be beneficial.

Nice to have SkillsThe person should have knowledge of:•Jenkins (CI/CD tools)•SonarQube•Jira•Confluence•Tools like FileZilla or WinSCP•MySQL/MariaDB and Oracle databases•Linux knowledge would be advantageous.•Shell - can create scripts - be able to use shell command line•Packaging for DEBIAN packages would be a plus (e.g. with debuild/pdebuild/dpkg-build package or similar tools). (especially in combination with Maven)•German language B2-C1

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Key Skills

• Java