IT System Administrator | IT System Administrator (f/m/d) at B2B Software Vendor

Zertificon Solutions GmbH

Berlin, Berlin, Deutschland
Published Jan 12, 2026
Full-time
Fixed-term

Job Summary

This role involves the comprehensive planning, installation, configuration, and maintenance of IT infrastructure and existing systems for a leading B2B software vendor specializing in IT security. The System Administrator will be responsible for the daily administration of Windows and Linux server environments, including crucial updates and patch management, while also operating and developing virtualization platforms such as VMware and Hyper-V, and Docker-based infrastructures. A key focus is on continuous monitoring, incident resolution, and meticulous documentation of system configurations. The ideal candidate brings at least two years of experience in system administration, strong expertise in Windows Server, familiarity with Linux distributions (Ubuntu, Debian, CentOS), and solid knowledge of containerization technologies like Docker. This is an attractive opportunity to join a professional, highly qualified team dedicated to developing trusted IT security solutions 'Made in Germany,' offering flexible working hours and a purpose-driven environment.

Required Skills

Education

Not specified

Experience

  • At least 2 years of experience as an IT System Administrator
  • Strong expertise in Windows Server environments
  • Experience with Linux server administration
  • Experience with virtualization platforms (VMware, Hyper-V, or similar)
  • Solid knowledge of Docker/containerization

Languages

German (Fluent)English (Fluent)

Additional

  • Contract duration is temporary (Befristet).