(Senior) IT-Network Administrator (m/w/d)

After fire, water and storm is BELFOR the first choice. We ensure that all activities in Europe and Asia run smoothly. Are you ready for a team that gives everything and never gives up? Are you ready for a new job that's more than just a job? BELFO. Ready when you are. Responsibilities and operation of the network structure (LAN/WLAN and WAN with VPN/MPLS), which is crucial for the stability and efficiency of our IT infrastructure Management and configuration of multiple devices, including routers, switches, firewalls, and servers, as well as monitoring and troubleshooting of network issues Monitoring and maintenance of network security, including intrusion detection and prevention, virus scanning, and patch management Configuration and deployment of network protocols, such as TCP/IP, DNS, DHCP, and HTTP/HTTPS Troubleshooting and resolution of network-related problems, including connectivity issues, packet loss, and latency Optimization of network performance, including QoS, traffic shaping, and congestion avoidance Collaboration with other teams to ensure seamless integration of IT systems and services Compliance with industry standards and best practices for network administration and security