We're supporting a growing IT security organisation in Cologne that is looking for a Network Support Engineer to join its support team.
You’ll work in a managed service environment, supporting customer network and security infrastructure and helping resolve technical issues across LAN, WAN, VPN and firewall environments.
Troubleshooting network and security incidents within 2nd level support
Administering and operating firewall environments and Implementing firewall rule changes and security optimisations
Diagnosing issues across LAN, WAN, VPN, routing and switching
Monitoring and maintaining customer environments whilst supporting customer projects and new network/security implementations
Supporting 1st level teams with technical escalations
Investigating security events and supporting incident response
Documenting incidents, changes and technical solutions
Strong understanding of TCP/IP, routing, switching, VLANs, VPN, DNS and DHCP
Hands-on experience with at least one firewall technology such as Fortinet, Sophos, Cisco, Palo Alto or WatchGuard
Experience with monitoring and ticketing systems
Strong troubleshooting and analytical skills
Linux knowledge & experience
Comfortable communicating directly with customers in German and English
A genuine growth mindset in learning and developing further within network and cyber security
SIEM or security monitoring experience
Past experience Red Hat, Ubuntu or Debian
Veröffentlichungsdatum:
18 Aug 2026Standort:
KölnTyp:
VollzeitArbeitsmodell:
Vor OrtKategorie:
Erfahrung:
2+ yearsArbeitsverhältnis:
Angestellt
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