Senior System & Network Administrator – F-35 Operations

About the role

You will operate and secure mission‑critical IT systems that directly support F‑35 flight operations at Kleine Brogel Air Base. Downtime has immediate operational impact, so reliability, precision and availability are paramount.

Key responsibilities

• Manage and monitor Windows and Linux servers in a high‑availability environment.
• Maintain network infrastructure – routers, switches and firewalls (Layer 2/3, TCP/IP).
• Own backup, restore and disaster‑recovery processes across virtualised and storage platforms.
• Control system configurations and changes following strict procedures.
• Troubleshoot complex issues across systems, networks and infrastructure.
• Support end‑users and coordinate with on‑site stakeholders.

Required profile

• 5+ years of experience in system and network administration.
• Strong background in mission‑critical or highly controlled environments.
• Professional communication skills in English.
• Structured, analytical approach to problem solving.

Required skills

• Windows server administration
• Linux server administration
• TCP/IP, LAN/WAN networking
• Cisco or Juniper networking equipment
• Routers, switches and firewalls (Layer 2/3)
• Virtualisation technologies
• Storage and backup solutions
• Disaster‑recovery planning and execution

What we offer

• Opportunity to work on cutting‑edge defence IT systems.
• Full‑time on‑site role in a mission‑driven environment.
• Professional development within ILIAS Solutions and collaboration with Belgian Defence.