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October 10, 2026

Senior Network Administrator (LAN/WAN/Firewall)

Senior • On-site

60,000 - 80,000 EUR/yr

Bad Oldesloe, SH, Germany

Quick Facts

  • Role: Senior Network Administrator (LAN/WAN/Firewall)

Description

You will be responsible for the network infrastructure across LAN, WAN, switching, and static/dynamic routing, while also owning the security architecture for firewalling, VPN/IPSec, and NAC/802.1X. You will plan and implement measures to keep the infrastructure functioning reliably, support modern high-availability approaches, and contribute to purchasing guidance, technical concepts, and documentation. The role works closely with the HQ team to support around 80 European sites.

Responsibilities

  • Manage the network infrastructure for LAN, WAN, switching, and static/dynamic routing
  • Own security architecture, including firewalling (ISE, ASA, Cisco Secure Client)
  • Implement and support VPN/IPSec and NAC/802.1X
  • Plan and execute measures to ensure overall infrastructure functionality; support high-availability solutions
  • Support IT infrastructure procurement with technical guidance and contribute to concepts and documentation
  • Collaborate with the Bad Oldesloe HQ team for operations across ~80 European locations

Requirements

  • Solid experience as a network expert (training/degree is secondary)
  • Knowledge of SNMP-based network monitoring
  • Willingness to take responsibility for architecture and network concepts
  • Analytical skills and ability to quickly get up to speed on complex technical topics
  • Team-oriented, independent working style
  • Very good German and good English
  • Preferred: experience with public certificates and PKI
  • Preferred: SD-WAN experience (e.g., Velocloud or Meraki)
  • Preferred: CCNA/CCNP certifications

Benefits

  • Permanent employment contract with performance-based compensation
  • Attractive benefits and health offers
  • Subsidized Deutschland-Ticket
  • Subsidized canteen meals and free parking
  • Corporate benefits and discounted vacation accommodations on the Baltic Sea
  • Internal trainings and development opportunities

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