_{26th October, 2026}

EL1 Lead Network Security Engineer 

Contract: 12 months, with 2 x 12-month extension options
Pay: $140-$170 p/h including super (negotiable)
Work type: Full-time, up to 40 hours per week
Work arrangement: On-site, with flexible arrangements considered where operational requirements allow
Clearance: Must hold a current NV1 clearance or above

About the Role
This is a senior, hands-on network security engineering role with our Federal Government client. You will help operate, assess and strengthen critical network infrastructure in a sensitive Defence environment.

You will work across network architecture, infrastructure and device configurations. The focus is practical security: identifying weaknesses, improving network practices and hardening systems against advanced threats.

What You'll Be Doing

• Plan, implement and operate network services across hardware and virtual environments
• Test and maintain network infrastructure, software and hardware devices
• Assess network requirements, architecture and infrastructure
• Review complex information systems using contemporary security frameworks and toolsets
• Apply knowledge of malicious actor techniques, tools and processes
• Assess critical infrastructure systems and identify security weaknesses
• Recommend practical network hardening and defence-in-depth improvements
• Help defend systems against advanced threats

What You Bring (Essential Criteria)

• You've demonstrated at least 5 years' experience in a Cyber role
• You can implement, maintain and assess established network practices
• You can recommend practical improvements to network security
• You can configure protection components including firewalls, servers and routers
• You can assess network security architectures and apply defence in depth
• You can review network device configurations and recommend security improvements
• You've secured network communications in complex environments
• You're an Australian citizen
• You must hold a current NV1 clearance or above

Nice to Have (Desirable Criteria)

• Strong computer networking, protocols and network security methodology knowledge
• Experience explaining technical network concepts to non-technical audiences
• Knowledge of firewalls, demilitarised zones, encryption and related IT security methods
• Experience using network management tools to analyse network traffic patterns

Roles like this move fast - apply now for high-value Defence cyber work and free payroll that helps you keep more of your rate.

Apply For Job