System Administrator - Whizdom Recruitment

About the Client
Our client is a highly regarded Australian Government organisation responsible for protecting Australia’s national interests and supporting critical national security outcomes.

Operating within a complex, high-security environment, the organisation delivers essential intelligence, cyber security and technology capabilities. This opportunity will suit experienced infrastructure professionals who are motivated by technically challenging work and the chance to contribute to outcomes of national significance.
About the Role
Our client is seeking experienced System Administrator / Infrastructure Engineers to implement, manage and sustain the physical, virtual, networking and cloud infrastructure supporting critical digital services.

Key responsibilities will include:

• Designing and implementing secure, scalable and compliant cross-domain solutions
• Installing and de-installing hardware and software
• Configuring and sustaining Linux-based servers, network devices and supporting services
• Monitoring system performance, reliability and security
• Applying patches, updates and vendor mitigations across applications, operating systems, drivers and firmware
• Using automation tools to prepare, configure and replicate system builds
• Troubleshooting complex and unpredictable infrastructure issues
• Providing technical advice on the effective use of infrastructure assets
• Contributing to the continuous improvement of systems development processes and practices
• Collaborating with technical teams to address non-routine and contingency requirements

The Successful Candidate
To be successful in this role, you will demonstrate:

• Strong experience configuring and sustaining Linux-based ICT infrastructure
• Experience supporting servers, network devices, system monitoring and authentication services
• Hands-on experience using automation tools such as Ansible to prepare and replicate system builds
• Experience managing Cross Domain Solutions and contributing to the development of new solutions
• Demonstrated ability to maintain reliable ICT infrastructure through configuration automation, upgrades, patching and monitoring
• Experience using version control systems within an infrastructure environment
• Strong troubleshooting skills and the ability to resolve unpredictable technical problems
• Effective communication and collaboration skills within multidisciplinary technical teams
• Experience developing scripts or small programs using Python or Bash will be highly regarded

Candidates must also be willing to undergo an Organisational Suitability Assessment (OSA) prior to engagement.
Why partner with Whizdom?
We’re Whizdom. We view you as an extension of our strong, dependable brand and have differentiators which really are different! The Whizdom way:

• We pay our contractors same day you submit your timesheet!
• We are Level 3, DISP certified and have signed the Veteran Employment Commitment and been awarded the highest level of compliance to this important initiative, proactively assisting veterans transitioning from the forces to civilian roles. We’ve been lucky enough to win industry awards for our high level of process compliance and are ISO 9001 certified. Our commitment to reducing Greenhouse Gas Emissions has been accredited in line with large global organisations.
• We value diversity and welcome applications from Indigenous Australians, people from diverse cultural and linguistic backgrounds and people living with a disability.

Location: The role is based in Canberra ACT, Melbourne VIC, Adelaide SA.
Contract terms: 12 months from commencement date, plus 2x 12 month extensions
Experience Level: APS6 Equivalent
Security Requirements: Candidates must hold an active or reactivatable Top Secret Positive Vetting (TSPV) Security Clearance on submission. Our client is not looking to upgrade an existing clearance for this position. An OSA (Organisational Suitability Assessment) will be required for this position.
How to Apply: Please upload your resume to apply. Please note you will need to complete selection criteria to complete this application process. We will be in touch with instructions for suitably skilled candidates.

Candidates will need to be willing to undergo pre-employment screening checks which may include, ID and work rights, security clearance verification and any other client requested checks.

Applications open until 8am 28 September 2026.
Reach Damien on 0480 002 503 or damienm@whizdom.com.au for any further information.