Senior IT-Systemadministrator (m/w/d)
Core
Managing high-availability IT landscapes, evolving complex system architectures, and steering infrastructure projects for heterogeneous Windows, cloud, and network environments.
Role type
Senior System Administrator (Hybrid Cloud/On-Prem)
Builds
Modern hybrid IT infrastructure including Windows Server, Active Directory, Microsoft 365, and network security services.
Domain
Enterprise IT Infrastructure / Cloud & Network Engineering
Required skills
Windows Server administration, Active Directory management, Microsoft 365 administration, Enterprise Virtualization (VMware, Hyper-V), Network Infrastructure (TCP/IP, Routing, Switching, Firewalls), PowerShell automation, Backup & Disaster Recovery, 2nd & 3rd-Level Support troubleshooting.
Preferred skills
Strategic system architecture development, complex incident analysis and resolution.
Technologies
Windows Server, Active Directory, Microsoft 365, VMware, Hyper-V, PowerShell, Next-Gen Firewalls, TCP/IP, Routing/Switching protocols.
Responsibilities
Administration, monitoring, and optimization of hybrid IT infrastructure; Configuration and maintenance of Windows Server landscapes and virtual environments; Management and development of Active Directory, Microsoft 365, Group Policies, and central IT security services; Ensuring system availability, data security, backup, disaster recovery, and patch management; Independent analysis and resolution of complex incidents in 2nd & 3rd-level support; Maintenance, securing, and expansion of network infrastructure.
Seniority
Senior, hands-on IC
