At IONOS, the leading European provider of cloud infrastructure, cloud services and hosting services, you will work together with a wide range of teams. We are characterized by open structures, a friendly working culture and flat hierarchies with a strong team spirit. We firmly believe that work and fun are compatible, and offer you the right environment for this. Our constant growth means that we are always looking for new colleagues. Become part of IONOS and grow with us.


  • Operation of our S3 / Object Storage Solution (focused on Ceph).
  • Monitoring of all the systems and KPIs.
  • Extending and improving Ceph source code.
  • Incident Management and post-mortems / problem analyzes.
  • Automation of deployment, monitoring, maintenance tooling and processes.
  • Participation in a flexible on-call and on-duty rotation.
  • Agreement to get a security check by the German government (Ü2 / SÜG).


  • Good knowledge of Linux Server (Debian / CentOS).
  • Proven experience in the administration of large Ceph clusters.
  • Experience in C++ programming.
  • Knowledge in configuration management and workflow automation, preferably with Ansible or Rundeck.
  • Business-Level Englisch.
  • Nice-to-have:
    • Experience load balancers, preferred haproxy.
    • Knowledge about prometheus and grafana.
    • Practice in scripting in Python.
    • Understanding about S3 standard.


  • Hybrid working model with home office option.
  • Flexible working hours through trust-based working hours.
  • At some locations a subsidized canteen and various free drinks.
  • Modern office space with very good transport connections.
  • Various employee discounts for activities and products.
  • Employee events such as summer and winter parties, as well as workshops.
  • Numerous training and development opportunities.
  • Various health offers, such as sports and health courses.

Location: Berlin, Karlsruhe or home-office within Germany


IONOS is the leading European digitalization partner for small and medium-sized businesses (SMB). The company serves around six million customers and operates across 18 markets in Europe and North America, with its services being accessible worldwide. With its Web Presence & Productivity portfolio, IONOS acts as a 'one-stop shop' for all digitalization needs: from domains and web hosting to classic website builders and do-it-yourself solutions, from e-commerce to online marketing tools. In addition, the company offers Cloud Solutions to enterprises who are looking to move to the cloud as their businesses evolve. 

We value diversity and welcome all applications - regardless of, for example, gender, nationality, ethnic or social origin, religion, disability, age as well as sexual orientation and identity, physical characteristics, marital status or any other irrelevant factor subject to applicable law.


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