Network System Administrator | Systemadministrator/-in (m/w/d) Netzwerksysteme

Job Summary

This role is centered on managing and maintaining the critical IT infrastructure and back-office applications, providing dedicated Second and Third Level Support. The administrator will focus heavily on Microsoft Windows operating systems (Client and Server), managing network and firewall infrastructure, and overseeing telephony systems (VoIP, Unified Messaging). Key responsibilities include planning and executing system integrations, meticulous system documentation, and coordinating external contractors. Candidates must possess a completed degree in Computer Science or a relevant vocational qualification (e.g., IT Specialist for System Integration), coupled with multi-year professional experience in administration. Expertise in virtualization, IT security concepts (SIEM, Endpoint Security), and protocols like MFA, OAuth, and Kerberos is essential. The position requires strong collaboration skills and proficiency in Fluent German (C1) and Intermediate English (B2), offering a vital role within a major healthcare service provider.