Senior Network & Systems Administrator - NV1 Clearance

Cleared ICT; Brisbane; On-site; AUD 130,000 - 170,000; Full time

Job summary

Cleared is partnering with a leading global technology and defence organisation to recruit a Senior IT Administrator to support enterprise network, infrastructure and datacentre environments across Australia. This role blends hands-on administration with a strong networking focus to ensure secure, highly available IT services.

You will design, implement, and maintain critical network and infrastructure systems, including Windows Server, virtualization, cloud services and security controls in

Qualifications

• Extensive experience in enterprise network administration and systems administration.
• Strong knowledge of routing, switching, firewall technologies and infrastructure operations.
• Experience supporting Windows Server environments and virtualised infrastructure.
• Exposure to cloud technologies, cybersecurity frameworks and operational security practices.
• Experience with Aruba networking, Check Point firewalls and Cisco switching is highly regarded.
• Strong troubleshooting, stakeholder engagement and documentation skills.

Responsibilities

• Lead the design, implementation and maintenance of network and infrastructure systems.
• Administer Windows Server infrastructure and virtualised environments.
• Support LAN, WAN and firewall environments across sites.
• Support vulnerability management, patching and remediation activities.
• Collaborate with international teams on SIEM, EDR and incident response initiatives.
• Deliver infrastructure and application rollout projects.
• Provide Level 2 and Level 3 support across Australian offices.
• Participate in occasional domestic travel and international collaboration.

Skills

Enterprise network administration

Systems administration

Routing and switching

Firewall technologies

Windows Server

Cloud technologies

Cybersecurity frameworks

Aruba networking

Check Point firewalls

Cisco switching

Troubleshooting

Stakeholder engagement

Documentation

Education

Tertiary qualifications or equivalent experience

Tools

VMware

Hyper-V

Aruba networking tools

Check Point management tools

Cisco networking gear

Job description

Cleared is partnering with a leading global technology and defence organisation to recruit a Senior IT Administrator to support enterprise network, infrastructure and datacentre environments across Australia. This role blends hands-on administration with a strong networking focus to ensure secure, highly available IT services.

You will design, implement, and maintain critical network and infrastructure systems, including Windows Server, virtualization, cloud services and security controls in