IT-Systemadministrator - Infrastruktur (m/w/d)

Manage and evolve the network infrastructure, including LAN, WAN, WLAN, VPN, and firewalls, while operating physical and virtual servers on VMware vSphere and Proxmox VE. Administer Microsoft and Linux server landscapes, oversee SSL/TLS and internal PKI structures, and implement security and backup concepts. Support cloud and hybrid solution integrations such as Microsoft Azure and SAP BTP, collaborate with internal departments and external providers, and handle monitoring, troubleshooting, and performance optimization. Interface with facility management regarding UPS and fire detection systems. This role involves 35 hours per week in an unbundled position, requiring a degree in (Economic) Informatics or equivalent, with multiple years of experience in complex IT infrastructures within industrial environments.