Senior Network Security Engineer

The Network Technology Recruitment

Canberra

On-site

AUD 140,000 - 165,000

Full time

14 days+

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Job summary

A leading technology recruitment agency is looking for a Senior Network Security Engineer in Canberra. The ideal candidate will have extensive Cisco networking experience and skills in securing complex network infrastructures. This role involves technical leadership and collaboration across teams to ensure network resilience. Candidates must hold security clearance and possess in-depth knowledge of network security protocols. A full-time position with competitive pay is offered.

Qualifications

Experience in Cisco enterprise networking.
Ability to work in secure, regulated environments.
Strong knowledge of network security protocols.

Responsibilities

Design and secure Cisco network infrastructures.
Oversee network operations and incident management.
Provide technical leadership to junior engineers.

Skills

Cisco enterprise routing and switching

LAN / WAN / WLAN

Network security implementation

Monitoring network performance

Incident management

Tools

Cisco Firepower NGFW

Cisco ISE

AWS networking

F5 Load Balancers

Job description

Senior Network Security Engineer

Join to apply for the Senior Network Security Engineer role at The Network Technology Recruitment.

The Network Technology Recruitment provided pay range

This range is provided by The Network Technology Recruitment. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

A$140,000.00/yr - A$165,000.00/yr

Location and Requirements

Canberra (Primary) – Other locations considered: Melbourne, Sydney or Ballarat
Security Clearance: NV1 Required
Work Arrangement: 5 days onsite
Citizenship: Australian Citizens only

About the Role

We are seeking an experienced Senior Network Security Engineer to support large-scale enterprise programs delivered within secure and regulated environments. This role is responsible for the design, implementation, security, operation, and continuous improvement of complex Cisco-based network infrastructures supporting critical business and operational systems.

You will play a senior, hands‑on technical role across network architecture, operations, and security, acting as an escalation point for complex issues while providing technical leadership and mentoring to junior engineers. Working closely with network operations teams, security specialists, cloud engineers, and stakeholders, you will deliver secure, highly available, and scalable network solutions in high‑assurance environments.

This role suits a technically strong senior professional with deep experience across enterprise Cisco networking and network security, comfortable operating in secure, mission‑critical environments.

Key Responsibilities

Design, implement, and maintain secure, scalable, and high-performance Cisco network solutions aligned to enterprise security requirements
Support and secure large-scale Cisco enterprise networks across LAN, WAN, WLAN, SD-WAN, data centre, and cloud environments
Implement and enforce network security controls including Cisco Firepower NGFW, VPNs, IDS/IPS, encryption, and access controls
Design, configure, and support Cisco ISE for network access control, authentication, and policy enforcement
Oversee day‑to‑day network operations including incident, change, and problem management aligned to ITSM / ITIL processes
Monitor network performance, availability, and security using Cisco platforms and enterprise diagnostic tools
Troubleshoot and resolve complex routing, switching, firewall, and security incidents as a senior escalation point
Perform network maintenance, upgrades, patching, and lifecycle management of Cisco hardware and software
Conduct security assessments, vulnerability identification, and remediation across network infrastructure
Lead and contribute to network projects from planning through delivery
Collaborate with internal teams and stakeholders to gather requirements and deliver secure outcomes
Drive continuous improvement initiatives to enhance network resilience and security posture
Provide technical leadership, mentoring, and knowledge transfer to junior engineers
Maintain accurate documentation and reporting on performance, incidents, risks, and improvements