Systems Administrators / Systems Engineers / Infrastructure Engineers – Microsoft & VMware
Location: Canberra, Sydney, Melbourne
Job Type: Contract / Full-time
Clearance: NV1, NV2, or TSPV (required)
The Opportunity
Cleared is expanding its infrastructure capability to support mission-critical environments across Federal Government, Defence, and National Security clients.
We are seeking experienced Systems Administrators, Systems Engineers, and Infrastructure Engineers with deep expertise in Microsoft/Windows platforms and VMware virtualisation.
You will design, support, and optimise secure enterprise infrastructure systems, ensuring reliability, performance, and compliance within highly classified environments.
Why Join Us?
- Access to structured training, labs, and certification support
- Opportunity to build advanced VMware and Microsoft capability
- Work on high-impact, mission-critical Defence and Federal Government programs
- Salary packaging options + novated leasing
- Industry-leading contract rates
- Long-term career growth in secure environments
Key Responsibilities
- Administer and support Windows Server, Active Directory, Group Policy, DNS, DHCP, PKI, and enterprise Microsoft services
- Manage and maintain VMware infrastructure, including vSphere, ESXi hosts, clusters, and virtual environments
- Perform patching, upgrades, hardening, and lifecycle management of Windows and VMware platforms
- Troubleshoot complex infrastructure issues across compute, storage, networking, and virtualisation layers
- Ensure adherence to ASD ISM, Defence security requirements, and ICT compliance standards
- Produce clear technical documentation, system designs, and operational procedures
- Collaborate with cross-functional teams to deliver secure, reliable systems
- Provide mentorship and technical guidance to junior engineers when required
Skills & Experience Required
- Strong hands-on experience administering Windows Server and core Microsoft infrastructure
- Solid VMware experience – vSphere, ESXi, vCenter (NSX-T or vSAN beneficial but not mandatory)
- Knowledge of storage, networking, and virtualisation architecture
- Experience supporting secure environments, ideally Defence or Federal Government
- Familiarity with automation or scripting tools (PowerShell, Ansible, Terraform – advantageous)
- Strong communication and documentation skills
Education & Certifications (Highly Regarded)
- Bachelor’s degree in IT, Engineering, or related field
- Microsoft certifications (MCSA, MCSE, AZ-104, etc.)
- VMware certifications (VCP, VCAP preferred)
Diversity & Inclusion
We value diverse backgrounds and are committed to building inclusive teams.
Veterans and applicants with Defence experience are strongly encouraged to apply