Senior System/Network Administrator

Responsibilities

• Manage and monitor Windows and Linux systems in a high availability environment
• Maintain network infrastructure including routers, switches, firewalls, and network appliances (Layer 2/3, TCP/IP)
• Ensure network synchronization and consistent system timing
• Execute backup, restore, and disaster recovery processes
• Control system configurations and changes
• Monitor hardware and infrastructure performance
• Troubleshoot complex issues across systems, networks, and applications
• Support users and coordinate with on-site stakeholders

Requirements

• 5+ years of experience in system and network administration
• Strong experience with Windows and Linux environments
• Solid networking knowledge including TCP/IP, LAN/WAN, and Layer 2/3
• Experience with enterprise networking environments such as Cisco or Juniper
• Hands-on experience with virtualization, storage, and backup (NAS/SAN)
• Experience working in mission-critical or highly controlled environments
• Strong troubleshooting skills and a structured, analytical way of working
• Professional proficiency in English

About the Company

ILIAS Solutions connects logistics, maintenance, and operations into one integrated platform for defense operations. In collaboration with Belgian Defence, we manage the full data lifecycle and maintenance of the F-35 ALIS environment, ensuring that critical information is accurate, consistent, and available to support mission readiness.