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

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.