Our client is a leading Australian Government agency within the national security and defence sector. They deliver advanced technology solutions and play a critical role in protecting Australia against global threats. This is an opportunity to contribute to projects that directly impact national security and operational resilience.
About the Role
We are seeking an experienced Senior System Administrator (EL1 equivalent) to support the delivery and ongoing operation of secure, high-availability platforms in Linux and AWS environments. This role involves system administration, security implementation, automation, and performance monitoring to ensure reliability and compliance.
Key responsibilities include:
- Administer and maintain Linux-based systems, including patching and performance tuning.
- Manage AWS infrastructure (EC2, Lambda, S3, backups) to ensure availability and security.
- Implement and maintain security controls aligned with organisational policies.
- Develop and enhance procedures for continuous improvement.
- Document technical processes and promote knowledge sharing within the team.
To be considered, you must:
- Be an Australian Citizen with a current NV2 security clearance.
- Have extensive experience in:
- Administering Red Hat Enterprise Linux systems.
- Deploying and maintaining AWS services (EC2, Lambda, S3).
- Using automation tools (Ansible, Semaphore).
- Monitoring and logging with Grafana and ELK stack.
- Strong troubleshooting and performance tuning skills in production environments.
- Experience with Apache NiFi clusters.
- Familiarity with Essential Eight security controls.
- Database administration (MySQL, DynamoDB).
- Experience in secure government environments.
What’s on Offer
- Location: Canberra, ACT or Brisbane, QLD
- Duration: 12 months with potential extensions
- Flexible working arrangements available
- Opportunity to work on mission-critical projects in a high-impact environment
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: Canberra, ACT or Brisbane, QLD
Contract terms: 12 months from commencement date, plus potential extensions
SFIA level required: The Specified Person will be expected to demonstrate attributes of SFIA Level of Responsibility 5.
Security Requirements: Be an Australian Citizen with a minimum NV2 security clearance (TSPV highly desirable). 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 27 January 2026.
Reach Damien on 0480 002 503 or damienm@whizdom.com.au for any further information.
