IT-Administrator managing LAN & Windows systems for clients with a focus on stability and improvement. Responsibilities include infrastructure management, troubleshooting, and security solutions.
Responsibilities
Understand infrastructures and ensure reliable operation
Support and manage environments based on Windows Server, Active Directory, networking & LAN
Configure, maintain and monitor firewalls, routers, switches, etc.
Analyze and resolve incidents — remotely or on-site — with a holistic perspective
Build and maintain scalable, secure infrastructures for clients
Secure, automate and modernize systems
Implement and maintain backup and security solutions (e.g., Nakivo, Arcserve, Hornet Security)
Contribute to the ongoing development of existing environments
Assist with automating processes (e.g., using PowerShell)
Create and maintain technical documentation in our system
Work independently, in a structured and solution-oriented manner
Independently manage projects related to infrastructure and networking
Coordinate technical matters with colleagues and clients — on an equal footing
Proactively contribute to optimizing internal and external IT processes
Requirements
Completed IT training (e.g., IT Specialist — System Integration) or equivalent qualification
At least one year of professional experience in IT support or system administration — more experience welcome
Solid knowledge of Windows Server environments, Active Directory, DNS, DHCP
Experience with LAN/WAN, switching, routing and ideally firewall configuration
Structured working style, sense of responsibility, strong customer orientation and ability to work independently
Experience with virtualization (Hyper-V, VMware), Microsoft 365 and scripting
Very good German language skills, both spoken and written
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