Senior-IT-Administrator (m/w/d)
Core
Senior IT Administrator responsible for operating and advising on complex customer IT environments, including on-premise, cloud, and hybrid infrastructures.
Role type
Senior IC IT System Administrator
Builds
Customer IT infrastructure (servers, networks, security, backup)
Domain
IT Infrastructure & Security
Required skills
Windows Server administration, Active Directory, Group Policy, Microsoft 365, Microsoft Entra ID, Network engineering (TCP/IP, DNS, DHCP, VLAN, Routing, Switching), Firewall management, Virtualization, Backup solutions, Monitoring, Incident management (2nd/3rd level)
Preferred skills
Microsoft Intune, ESET Endpoint Security, Hornetsecurity, Veeam Backup, Synology NAS, Ubiquiti UniFi, WatchGuard Firewalls, Medical IT, Law firm IT
Technologies
Windows Server, Active Directory, Microsoft 365, Microsoft Entra ID, TCP/IP, DNS, DHCP, VLAN, VPN, Firewalls, Veeam, Synology, Ubiquiti, WatchGuard
Responsibilities
Install, administer, and maintain server, client, and network infrastructure; Operate and monitor networks, firewalls, VPN, and security systems; Provide 2nd and 3rd-level support for complex incidents; Plan and execute customer projects like migrations and rollouts; Advise customers on IT development; Document systems and changes.
Seniority
Senior, hands-on IC