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With our strong brands GMX, WEB.DE and and over 42 million active users, we are the leading email and communications platform in Germany, Austria and Switzerland. From this strong market position, services and apps are developed that simplify users' digital lives - from office tools and cloud solutions to personal ID management.

You are passionate for everything related to DevOps and Cloud engineering? Then we might have the right challenge for you. We are building and operating one of the world largest private Kubernetes cloud platforms on bare-metal servers - with over 85,000 CPU cores - servicing our more than 43 million users. Do you want to join us in developing this infrastructure? Then join our team.

  • Continuously expand and optimize our infrastructure in collaboration with your colleagues.
  • Further development and maintenance of our Kubernetes platform - help us make our 500+ cloud-native services even better.
  • Dealing with a wide range of challenges - from Kubernetes internals down to the OS layer.
  • Automatization of build- and deployment processes with Continuous Integration.
  • Develop our own Kubernetes operators and extend our platform with features such as persistent storage, GPUs and service mesh technology (Istio).
  • Open source projects and part of a rotating 24/7 on-call team.


You have a degree in technical studies or a comparable education? You are familiar with Kubernetes, Python, Prometheus, Puppet and GitlabCI in a highly scalable, high-traffic environment? You are passionate about automation and complex tech stacks? You are a software developer with high affinity for operations or operations engineer? Then we are looking forward to your application!

  • You have several years of experience with Kubernetes and Docker, CI/CD, infrastructure-as-code and corresponding tools.
  • You have strong skills in using Linux and good knowledge of BASH, Python and/or Go.
  • You are very familiar with GIT workflows and Feature branches, merge/pull requests etc.
  • You are motivated to learn new things and your motto is: "Together we are stronger".
  • Communication is important to you, you speak English fluently.

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