Cyber Security Systems Administrator
Whizdom ·whizdom.shazamme.com
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Cyber Security Systems Administrator
About the Organisation
This Australian technology organisation delivers advanced, mission-critical capabilities that support national security, defence, and government customers. With a strong focus on innovation, security, and engineering excellence, the organisation develops and operates highly secure systems that protect Australia's most sensitive information and critical assets.
About the Company
The company is committed to fostering a collaborative and high-performing culture where technical expertise, continuous improvement, and innovation are highly valued. Employees work alongside industry-leading professionals in a secure and challenging environment, contributing to solutions that have a real-world impact on Australia's national interests.
About the Role
We are seeking an experienced Cyber Security Systems Administrator to join a high-performing cyber security team. In this role, you will be responsible for the day-to-day administration, maintenance, and optimisation of the platforms that host the organisation's cyber security capabilities and the security tools that operate across them.
You will play a key role in administering security technologies such as vulnerability management, SIEM, endpoint protection, application control, and privileged access management solutions. The position also involves building, hardening, and maintaining the underlying infrastructure, including Windows and Linux operating systems, virtualisation platforms, container environments, and network infrastructure, in alignment with ISM and Essential Eight Maturity Level 3 requirements.
This is a hands-on technical position working across multiple secure environments and collaborating closely with cyber security, infrastructure, and engineering teams.
Responsibilities
As the Cyber Security Systems Administrator, you will:
To be successful in this role, you will have:
Due to the nature of the work, applicants must hold a NV1 security clearance. This role involves access to highly classified systems and information, and successful candidates will be required to comply with all security and suitability requirements.
How to Apply
Please upload your resume to apply. Please provide a supporting statement highlighting your skills, experience, and capability against the position description to complete this application process. We will be in touch with instructions for suitably skilled candidates.
Submissions close COB Wednesday the 26th of August 2026.
Please call Lisa Berjak on 0480 011 550 for any further information. 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.
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:
Our team of talented people are passionate about your experience, doing the right thing always, with a focus on your long-term career goals. We even give you a best in industry merch pack! Even if this role isn’t the exact fit for you, we would love a chat, contact us to find out more!
About the Organisation
This Australian technology organisation delivers advanced, mission-critical capabilities that support national security, defence, and government customers. With a strong focus on innovation, security, and engineering excellence, the organisation develops and operates highly secure systems that protect Australia's most sensitive information and critical assets.
About the Company
The company is committed to fostering a collaborative and high-performing culture where technical expertise, continuous improvement, and innovation are highly valued. Employees work alongside industry-leading professionals in a secure and challenging environment, contributing to solutions that have a real-world impact on Australia's national interests.
About the Role
We are seeking an experienced Cyber Security Systems Administrator to join a high-performing cyber security team. In this role, you will be responsible for the day-to-day administration, maintenance, and optimisation of the platforms that host the organisation's cyber security capabilities and the security tools that operate across them.
You will play a key role in administering security technologies such as vulnerability management, SIEM, endpoint protection, application control, and privileged access management solutions. The position also involves building, hardening, and maintaining the underlying infrastructure, including Windows and Linux operating systems, virtualisation platforms, container environments, and network infrastructure, in alignment with ISM and Essential Eight Maturity Level 3 requirements.
This is a hands-on technical position working across multiple secure environments and collaborating closely with cyber security, infrastructure, and engineering teams.
Responsibilities
As the Cyber Security Systems Administrator, you will:
- Administer, maintain, patch, and upgrade core cyber security platforms and tooling.
- Manage virtualisation environments, including cluster health, capacity planning, storage, backup and recovery, platform lifecycle management, and upgrades.
- Administer container platforms, including cluster configuration, node health, workload deployment, registry management, and platform updates.
- Build, configure, harden, and support Windows and Linux systems supporting cyber security operations.
- Deploy and manage security workloads across virtualised and containerised environments.
- Configure and optimise security tools to balance performance and effectiveness.
- Apply and maintain operating system and application hardening in accordance with ISM, Essential Eight ML3, and NIST security standards.
- Administer Privileged Access Management (PAM) solutions, including role-based access control, policy management, authentication integration, and session auditing.
- Implement and maintain least-privilege and tiered administration models.
- Develop and maintain technical documentation, system configurations, operational procedures, and as-built documentation.
- Support security assessments and provide technical evidence and subject matter expertise for Authority to Operate (ATO) activities.
- Assist with cyber security investigations and incidents through data collection, analysis, troubleshooting, and remediation activities.
- Adhere to formal change management processes and governance requirements.
To be successful in this role, you will have:
- Demonstrated experience administering Windows Server and Red Hat Enterprise Linux (RHEL) environments within a security-focused setting.
- Hands-on experience with one or more security technologies such as Nessus, Elastic, Trellix, Airlock Digital, Teleport, or similar enterprise security platforms.
- Experience supporting and maintaining virtualisation and container technologies, including Nutanix, OpenShift, Docker, and Kubernetes.
- Knowledge of Infrastructure as Code (IaC) tools such as Ansible, Puppet, and Terraform.
- Strong understanding of security frameworks and standards, including the Information Security Manual (ISM), Essential Eight, DSPF, NIST, and ISO 27001.
- Familiarity with cyber security operations, incident response processes, and security best practices.
- Strong troubleshooting, analytical, and technical documentation skills.
- Relevant tertiary qualifications and/or industry certifications.
- RHCSA or RHCE certification.
- CompTIA Security+ certification.
- Microsoft and other vendor-specific certifications.
- Experience with Arista networking technologies.
- Experience with Palo Alto Networks security solutions.
- Permanent position
- Salary $164k plus super
- Long-term career growth within a nationally significant organisation.
- Competitive remuneration package and employee benefits.
Due to the nature of the work, applicants must hold a NV1 security clearance. This role involves access to highly classified systems and information, and successful candidates will be required to comply with all security and suitability requirements.
How to Apply
Please upload your resume to apply. Please provide a supporting statement highlighting your skills, experience, and capability against the position description to complete this application process. We will be in touch with instructions for suitably skilled candidates.
Submissions close COB Wednesday the 26th of August 2026.
Please call Lisa Berjak on 0480 011 550 for any further information. 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.
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.
Our team of talented people are passionate about your experience, doing the right thing always, with a focus on your long-term career goals. We even give you a best in industry merch pack! Even if this role isn’t the exact fit for you, we would love a chat, contact us to find out more!
Frequently asked questions
Who is hiring for the Cyber Security Systems Administrator role?
Whizdom is hiring for the Cyber Security Systems Administrator position, a Shazamme client. Apply directly on the employer's career site.
Where is the Cyber Security Systems Administrator job located?
The Cyber Security Systems Administrator role with Whizdom is based in Canberra, ACT, AU.
What does the Cyber Security Systems Administrator role pay?
Whizdom lists the Cyber Security Systems Administrator role at AUD 163,000–183,000 per year.
Is the Cyber Security Systems Administrator role full-time or contract?
This is a full time position at Whizdom.
What experience level is the Cyber Security Systems Administrator role?
The Cyber Security Systems Administrator position is aimed at mid-level candidates.
How do I apply for the Cyber Security Systems Administrator role at Whizdom?
Apply directly on Whizdom's career page via the Apply button on this listing. ZammeJobs links straight through to the employer's ATS — no third-party form, no resume database.