Senior Infrastructure Engineer (Systems Administrator)

About the role

We are seeking a Senior Infrastructure Engineer (Systems Administrator) to join a national security agency in Canberra. You will implement, manage and retire physical, virtual, networking and cloud infrastructure supporting digital services, and support Kubernetes and VM‑based analysis tools.

Key responsibilities

• Implement, manage and retire infrastructure across on‑premises and cloud environments.
• Support deployment of Kubernetes, Docker and VM‑based analysis tools.
• Design, deploy and maintain sandboxed environments and developer/analyst tooling.
• Create and maintain system documentation and standard operating procedures.

Required profile

• Current or reinstatable AGSVA TSPV security clearance.
• EL1 equivalent senior experience (minimum 5 years Linux systems administration).
• Ability to complete an Organisation Suitability Assessment before commencement.

Required skills

• Linux systems administration (on‑premises and cloud).
• Deep expertise in VMware and VMware Aria (design, deployment, lifecycle).
• Strong networking knowledge (VLANs, DNS, load balancers, firewall rules).
• Experience with Kubernetes, Docker and containerisation principles.
• Ability to deploy sandboxed/isolated environments and developer tooling (IDE, package management, access controls).

What we offer

• Work on critical Defence and national security programs across Australia.
• Collaborative, flexible culture with opportunities for technical growth.
• Office locations in Perth, Brisbane, Melbourne, Sydney and Canberra.