IT System Administrator – Network & Infrastructure | IT-Systemadministrator:in – Netzwerk & Infrastruktur (m/w/d)

mit.data GmbH

Emsdetten, Nordrhein-Westfalen, Deutschland
Published Apr 2, 2026
Full-time
Permanent

Job Summary

As an IT System Administrator for Network & Infrastructure, you will play a central role in designing, operating, and optimizing complex IT environments for a specialized IT service provider. Your daily responsibilities include managing firewalls, switches, and routers, as well as overseeing cloud-based infrastructures such as Microsoft 365 and Exchange Online. You will be responsible for network segmentation, VPN management, and maintaining security protocols like IDS/IPS. Beyond technical maintenance, you will act as a consultant and trainer for users, troubleshooting connectivity issues and documenting network plans. This position is ideal for technical problem-solvers who enjoy variety, ranging from on-premise hardware to modern cloud services. The role is particularly attractive due to its high level of autonomy, the opportunity to work with cutting-edge technologies in a dedicated data center, and a supportive team environment that offers flexible working hours and home office options.

Required Skills

Education

Completed vocational training in IT (e.g., IT Specialist for System Integration), a degree in Computer Science, or equivalent practical qualifications.

Experience

  • Professional experience in IT systems and network infrastructure gained through vocational training, university studies, or practical work.
  • Proven experience in handling firewalls (ideally Sophos) and email systems.
  • Practical knowledge in network technologies including DNS, DHCP, and network segmentation.
  • Experience in cloud environments, specifically with Microsoft 365 and Azure AD/Entra ID.
  • Experience in structured troubleshooting and technical documentation.

Languages

Not specified

Additional

  • Location: Emsdetten, Germany. Permanent contract. Flexible working hours and home office options available. Position available as part-time or full-time (30-40 hours per week).