System Administrator (Security Field) (Debrecen)


System Administrator (Security Field) (Debrecen)
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Security Solution Administrator OT-Security (Debrecen) - English Speaking


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

  • You will be responsible for the administration of the OT-SOC system infrastructure and the OpenBSD / Linux servers (e.g. Syslog, Proxy, Update and API-Server).
  • After the vendor training your task will be to administrate the genua Genucenter; the genua Rendzvous Server and the genua Genubox
  • Administration of CyberX Central Manager Appliances / public cloud image based on Ubuntu Linux and the administration of CyberX Sensor
  • Appliances based on Ubuntu Linux
  • Basic administration of public clouds (e.g. Open Telekom Cloud) for components deployed on cloud infrastructure
  • Provide internal (Telekom Cyber Defense Center) and external (Customer) 2nd level support for the infrastructure.
  • Conference call at regular intervals and remote desktop meeting about
  • Incident and Problem and ongoing tasks.
  • Ensure that the provided operations / services are available und running stable according to the regulations.
  • Identify and fix issues of devices and systems.
  • Check and monitor: availability, system health and activities/changes for all components
  • Keep systems and devices up to date (patches, signature updates, software releases/firmware).
  • Simulate configuration changes in lab environment.
  • Stabilization of the application and systems.
  • Optimize the service: reduce downtimes, reduce system troubles.
  • Maintain the documentation of the solution and to create and update processes.
  • Support incl. Incident-, Problem- and Change Management and tracking the incidents

If you have…

  • Higher level (specialization) qualifications or relevant professional experience.
  • Practical knowledge and experiences with UNIX/Linux systems.
  • Practical experiences with public clouds (e.g. OTC).
  • Experience with the administration and deploying solutions in the Open Telekom Cloud (OTC)
  • Experience with OpenBSD Unix operating systems.
  • Experience with Linux/Unix (Ubuntu, RedHat) operating systems.
  • Experience with Shell Scripting (bash/ ksh).
  • Basic knowledge in IT-Security, Network Security and Network-technologies (OSI Modell, IP, TCP, UDP).
  • Customer-oriented approach.
  • Quick understanding of complex problems.
  • Familiar with ITIL processes.
  • Good team player attitude.
  • Good communication ability.
  • At least intermediate English language skills.
  • Able to provide 24/7 OnCall Support.


  • Experience with Genua GmbH Genu Servicebox, with Genua GmbH Genu Rendezvous Server and with Genua GmbH Genucenter or with similar products from different vendor.
  • Experience with CyberX Central Manager Appliances and CyberX Sensor Appliances.
  • German language skills.

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