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System Administrator (Security Field)

In this position you will be responsible for the platform operation and application administration of the industrial cyber security solution in Deutsche Telekom Security:

  • Administration of the OT (Operational Technology) Security Operation Center system infrastructure and the OpenBSD / Linux servers
  • Administration of the OT monitoring system and management of the connection to the central infrastructure
  • Basic administration of public clouds (e.g. Open Telekom Cloud) for  components deployed on cloud infrastructure
  • Maintain the application, documentation and systems. Optimize the service: reduce downtimes, reduce system troubles. Check and monitor: availability, system health and activities/changes for all components
  • 2nd level support incl. Incident-, Problem-,Patch-, and Change Management and tracking the incidents

Elvárások / Requirements

  • At least intermediate English language skills
  • Information Technology related degree or certificate OR experience in IT system operation/administration
  • Experience with Linux/Unix (Ubuntu, OpenBSD) operating systems
  • Experience with Shell Scripting (bash)
  • Able to provide 24/7 OnCall Support (approximately 6-7 days per month)
  • Familiar with ITIL processes



  • Customer-oriented approach and good communicational ability
  • Quick understanding of complex problems
  • Good team player attitude



  • At least basic German knowledge
  • Experience with virtualization (VMWare)
  • Experience in Operational Technology or IoT operation
  • Experience with Microsoft Windows Server environment
  • Basic knowledge with the administration and deploying solutions in cloud
  • Basic knowledge in IT-Security, Network Security and Network-technologies (OSI Modell, IP, TCP, UDP).

System Administrator (Security Field)

Full time, Apprenticeships

Published on 19.04.2021

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