The IT System Engineer is responsible for administering and optimizing Microsoft Endpoint Manager, Intune, Autopilot, and Microsoft 365 applications, improving cybersecurity including MS Defender, conducting proactive Windows patch management, modernizing existing IT structures, and contributing to national and international IT projects from planning to implementation. Requirements include a relevant IT qualification, experience with Windows Server, Active Directory, MS 365, MS Defender, or Endpoint Manager, strong communication skills, and fluency in German and English.