Java Software Engineer

Java Software Developer (m/w/d) — Hamburg — 60% Home office — up to €100,000

Germany's largest statutory health insurer is hiring ten Java developers in Hamburg on an eighteen-month AUG engagement.

The work is modernising the platform that more than eleven million members' insurance runs through — migrating a legacy Swing interface to React, without breaking a system that handles millions of transactions a day.

• Up to €100,000 gross per annum, all-in, depending on how closely you match the profile
• 18 months, AUG
• 40 hours a week, Monday to Friday
• Around 60% home office
  , roughly two days a week on site in Hamburg
• ASAP

• Migrate legacy Swing dialogs to React components
• Work with UI and UX designers and implement dialog migration specifications
• Write JUnit tests for every migrated dialog and run department acceptance testing
• Extend and enhance migrated legacy dialogs
• Full-stack Java development across the wider platform
• Code analysis and reverse engineering of legacy modules, and technical debt reduction
• Work in agile teams using Scrum or Kanban and Jira

• A completed degree in Computer Science, or a comparable qualification such as Fachinformatiker Anwendungsentwicklung
• At least five years of Java development on large projects with five or more developers
• Demonstrable experience with legacy code — analysis, reverse engineering, integrating inherited codebases
• Experience creating or modernising user interfaces, ideally Swing to React or comparable
• Agile delivery with Scrum or Kanban, and Jira
• German at C1, able to lead technical discussions
• The right to work in Germany

JavaEE, Java 21, JSF, Swing, React, JDBC and Oracle, Git, Git Hub, Git Hub Actions, Gradle, Maven, JUnit.

If you have worked with Swing you are in a small group. Say so at the top of your CV.