Network Administrator | TSPV | Defence & National Security

Multiple Opportunities | Victoria | TSPV Clearance Essential

About Our Client

Our client is a major technology and systems organisation delivering sophisticated ICT and software capability across Defence, Intelligence and Federal Government environments.

Their work supports the modernisation of complex government technology environments and critical national capabilities.

This is an opportunity to join a highly skilled technical team operating within a secure, high-compliance environment, supporting technology where network availability, security and performance are mission-critical.

About the Roles

We are seeking multiple experienced Network Administrators to support the operation, security and ongoing reliability of critical network services.

Working within a complex and highly secure enterprise environment, responsibilities will include:

- Managing network infrastructure across switches, routers, firewalls and wireless technologies
- Providing Level 2 and Level 3 troubleshooting and incident response
- Configuring network devices and maintaining firewall policies and security controls
- Monitoring network performance, capacity and availability
- Maintaining network topology, configuration and operational documentation

The Successful Candidates

We are looking for experienced network professionals who are comfortable operating within complex, secure and highly controlled ICT environments.

You will ideally bring

- Strong knowledge of TCP/IP, DNS, DHCP, VLANs, OSPF and BGP
- Hands-on experience with enterprise networking technologies including Cisco, Juniper,



Palo Alto and/or Fortinet
- Experience administering and troubleshooting firewalls and network security controls
- Experience with network analysis and monitoring tools such as Wireshark or SolarWinds
- Level 2 or Level 3 network support experience within complex enterprise environments
- Strong troubleshooting and technical documentation capability

Experience within Defence, Intelligence, Federal Government, high-availability or similarly secure ICT environments will be particularly valuable.

Security Clearance

Due to the sensitive nature of this setting, candidates must be Australian Citizens and hold an active TSPV security clearance.

Candidates must also be able to satisfy additional security assessment requirements associated with the environment.

What is on offer?

- Multiple Network Administrator opportunities in Victoria
- Work supporting highly secure, mission-critical national security technology
- Exposure to complex enterprise networking and cyber security environments
- Broad technical scope across networking, security, incident response and performance optimisation
- The opportunity to work alongside experienced technical specialists on critical government technology

Apply Now

If you are an experienced Network Administrator with an active TSPV clearance and are looking for your next opportunity within the Defence and national security technology landscape, we would welcome a confidential discussion.

Please submit an up-to-date resume outlining your networking experience, current clearance and availability.

All applications and enquiries will be treated in strict confidence.

📌 Network Administrator (Melbourne)
🏢 Whizdom
📍 Melbourne