Senior Network Security Engineer

The Network Technology Recruitment

Canberra

On-site

AUD 140,000 - 165,000

Full time

13 days ago

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Job summary

The Network is seeking a Senior Network Security Engineer in Canberra to design, implement, and operate Cisco-based networks within secure, enterprise environments. The role involves technical leadership, mentoring juniors, and close collaboration with security specialists, cloud engineers, and stakeholders to deliver secure, scalable solutions.

This hands-on senior position requires deep Cisco expertise, experience in large-scale networks, and the ability to drive continuous improvement while

Qualifications

Experience as a senior hands-on engineer in large-scale Cisco networks
Experience delivering secure, high-availability enterprise network solutions
Ability to mentor junior engineers and lead projects in secure environments

Responsibilities

Design, implement, and maintain secure Cisco network solutions for enterprise security requirements
Support large-scale Cisco networks across LAN/WAN/WLAN/SD-WAN and data centres
Enforce network security controls including Cisco Firepower NGFW, VPNs, IDS/IPS, encryption, and NAC policies
Oversee operations including incident/change/problem management per ITIL/ITSM
Lead network projects from planning through delivery and document outcomes

Skills

Cisco routing

Enterprise networking

Network security

Cisco ISE

Cloud networking

Tools

Cisco Firepower NGFW

VPNs

IDS/IPS

Wireshark

SolarWinds

Nagios

Job description

Senior Network Security Engineer

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