Netzwerkadministrator (m/w/d) Netzwerk & IT-Security · On-Premise · Vollzeit
Core
Operating, developing, and troubleshooting a self-run on-premise network and security infrastructure including routing, switching, firewalls, and SD-WAN.
Role type
Senior Network Administrator (On-Premise)
Builds
Internal IT infrastructure (network, security, servers, storage)
Domain
IT Infrastructure / Network Security
Required skills
Cisco routing and switching, Next-Generation Firewalls (Fortinet, Sophos, pfSense), Web Application Firewall (FortiWeb), SD-WAN, Linux server administration, Proxmox VE, Ceph, Zimbra, Nextcloud, DNS, SSL/TLS certificates, Backup strategies, Ansible, network segmentation, VLAN design, VPN configuration, incident response, technical documentation
Preferred skills
None stated
Technologies
Cisco, Fortinet, FortiGate, Sophos, pfSense, FortiWeb, Proxmox VE, Ceph, Zimbra, Nextcloud, Ansible
Responsibilities
Operate and maintain routing/switching infrastructure; Administer firewalls and WAF; Manage SD-WAN environment; Perform vulnerability analysis and system hardening; Design network segmentation, VLANs, and VPNs; Monitor network/security components and handle incidents; Maintain technical documentation and security policies
Seniority
Senior, hands-on IC
