Our client is seeking an experienced System Administrator to support and sustain highly secure, high‑availability environments. This role sits within a specialist delivery team responsible for administering complex systems across compute, storage, networking and end‑user services. Based in Brisbane, you’ll play a hands‑on role supporting critical infrastructure where security, reliability and performance are paramount.
Key Responsibilities
- Administer Windows Server and Linux environments in secure networks
- Support identity, access management and multi‑factor authentication
- Monitor system performance and contribute to capacity planning
- Manage backup, recovery and system hardening activities
- Provide technical support and contribute to clear system documentation
- Proven experience administering Windows and Linux environments
- Background supporting security‑focused or high‑assurance systems
- Experience with virtualisation, storage and enterprise infrastructure
- Strong problem‑solving and documentation skills
- NV2 security clearance and Australian citizenship
Our client is a large, well‑established organisation operating nationally within a highly regulated and security‑sensitive environment. They deliver complex technology and infrastructure solutions that support critical programs of national importance and are known for their engineering depth, structured delivery and long‑term investment in capability.
For more information or a confidential discussion, please apply.

