Software Developer Java (m/f/d)

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Contact & Service

Mon - Fri 8:30 am to 5:30 pm
Tel: +49 721 48 08 48-680

About us

Lindenbaum GmbH in Karlsruhe has been developing and operating high-performance, cloud-based conferencing solutions since 1999. We are part of the 4TechnologyGroup, an association of three innovative companies from Germany that have specialized in communication and artificial intelligence. Our business is innovative, cloud-based communication and contact center solutions.


What we are looking for

For immediate start we are looking for a Java Software Developer (m/f/d) with craftmanship and conviction.

Our development team offers Java, Kotlin, C, Erlang, JavaScript and Haskell. Telephony, audio, databases, networks and web user interfaces are our themes. For us the principles of software craftmanship are important. We develop in Pair, review our code, test, integrate and install our software in a completely automated manner. Our development process follows the agile principles. In addition we support our customers and we run our own solutions as a service.


But we want more

We want more functionality, more coverage by our tests, better usability, better performance, better processes and fewer legacy code.


That is why we need YOU!

A developer (m/f/d) that is at ease with the usual suspect technologies, tools and libraries. You know what to do with SQL, Kotlin, CSS, HTML and JavaScript. You like to interact with colleagues to learn from each other.

What else will you find at Lindenbaum:

  • A flat hierarchy, short decision- and development cycles
  • Interesting work with a wide scope
  • Variable labor times that allow for a long term combination of your professional and private life
  • Contract for indefinite time and partial performance related salary



Submit your resume, together with your earliest possible starting date and salary expectations to: Or simply call us and schedule a meeting with your future colleagues by dialing 0721 480848 611.