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

Job Summary

As an IT Systems Administrator, you will play a central role in designing, operating, and optimizing robust network and cloud infrastructures. Your day-to-day responsibilities include managing firewalls, switches, and routers, as well as overseeing Microsoft 365 and Exchange Online environments. You will be responsible for maintaining network security through firewall rule management, IDS/IPS, and segmentation, while also handling user and permission management. Beyond operations, you will troubleshoot connectivity issues, document network architecture, and support the team by implementing infrastructure projects and sharing technical expertise. This role is ideal for a proactive problem-solver who enjoys working in a collaborative IT service provider environment. You will have the opportunity to work with diverse technologies, ranging from on-premise network components to modern cloud services, in a supportive team that values continuous learning and professional development.