Systems Administrator

About the role

BAE Systems is seeking an experienced Systems Administrator to join its Canberra team. You will be responsible for maintaining and enhancing a hybrid enterprise infrastructure that supports critical defence, aerospace and security solutions.

Key responsibilities

• Design, deploy and support core infrastructure services, including Active Directory, identity and authentication.
• Manage Group Policy, endpoint management and patching across Windows and Linux environments.
• Maintain Cisco network components, VLANs, routing and firewalls.
• Monitor and respond to security events using Splunk and SIEM platforms.
• Administer VMware ESXi and vCenter, including performance tuning, resilience and disaster‑recovery.
• Oversee physical server hardware, cabling, power and cooling systems.
• Manage SAN/NAS storage, RAID configurations and backup solutions such as Veeam.
• Support Red Hat Enterprise Linux systems, including AD integration, hardening and patching.

Required profile

• Proven experience in a mission‑critical, multi‑technology environment.
• Strong problem‑solving skills with attention to detail.
• Ability to work across Windows, Linux, networking and virtualization domains.

Required skills

• Active Directory and Group Policy
• Windows Server administration
• Red Hat Enterprise Linux (RHEL)
• Cisco networking (VLANs, routing, firewalls)
• Splunk and SIEM tools
• VMware ESXi and vCenter
• SAN/NAS storage, RAID
• Veeam backup and recovery