Systems Administrator

Opes Cyber Security; Canberra; On-site; AUD 90,000 - 120,000; Full time

Job summary

A leading cyber security firm in Canberra is looking for skilled System Administrators to support critical cyber operations for Australia's national security. You will build secure infrastructure, automate processes, and ensure compliance with cyber standards in a strategic role. Ideal candidates will have strong system administration and cyber security governance expertise. This position offers a 12-month contract with possible extensions.

Qualifications

• Eligible for a TSPV clearance.
• Experience with system administration across Linux and Windows environments.
• Strong expertise in compliance with national cyber security standards.

Responsibilities

• Build and deploy secure infrastructure across Linux and Windows environments.
• Automate provisioning and deployment processes.
• Maintain monitoring and metrics systems for visibility and performance.
• Support SIEM platforms and forensic data workflows.
• Troubleshoot performance issues and support development teams.
• Ensure compliance with national cyber security standards.

Skills

System administration and cyber security governance expertise

Experience with Cisco, Fortinet, F5, and Extreme Networks

VPN, network encryption, and WAN solution proficiency

Familiarity with SDN technologies (VMWare NSX-T, Cisco ACI)

Strategic cyber engineering and capability uplift experience

Data engineering, ETL, and secure data pipelining capabilities

Strong documentation skills (Security DLDs, SSPs, incident reports)

Job description

System Administrators – Top Secret PV Cleared | Defence Cyber Operations

Location: Canberra, ACT (HMAS Harman, Russell Offices, and other sites as required)

Clearance: Eligible for a TSPV

Contract Type: 12-month Contract with possible extensions

Are you a highly skilled System/Application Administrator ready to contribute to Australia's national security mission? A high-impact federal agency is seeking experienced professionals to support critical cyber operations, insider threat detection, and investigative support functions.

This role sits within a specialised directorate focused on digital forensics, secure data management, and the integrity of audit logging systems used in national security investigations. You’ll be part of a team delivering technical capability to support sensitive task force operations and strategic cyber initiatives.

Your Responsibilities

• Build and deploy secure infrastructure across Linux and Windows environments
• Automate provisioning and deployment processes
• Maintain monitoring and metrics systems for visibility and performance
• Support SIEM platforms and forensic data workflows
• Troubleshoot performance issues and support development teams
• Ensure compliance with national cyber security standards and frameworks

Key Skills & Experience

• System administration and cyber security governance expertise
• Experience with Cisco, Fortinet, F5, and Extreme Networks
• VPN, network encryption, and WAN solution proficiency
• Familiarity with SDN technologies (VMWare NSX-T, Cisco ACI)
• Strategic cyber engineering and capability uplift experience
• Data engineering, ETL, and secure data pipelining capabilities
• Strong documentation skills (Security DLDs, SSPs, incident reports)

Why This Role?

• Work on sensitive and strategic national capabilities
• Collaborate with elite cyber professionals in a secure environment
• Make a real impact on Australia's cyber resilience and investigative capacity
• Be part of a team driving innovation in digital forensics and insider threat detection

Ready to contribute to Australia's digital defence?

Apply now or reach out for a confidential discussion.