Job Description
Profectus is seeking an experienced Network Engineer to support the operation and sustainment of secure networks within Defence.
You will work across connectivity states, device configuration, and node deployments, keeping critical network capability available and performing.
Working alongside peer technical teams, you will configure and troubleshoot network hardware and software under change control, maintain secure boundary interfaces, and support the delivery of collaboration services across Defence bearers.
Key Responsibilities
Perform work on managed Defence networks, including connectivity states, device configuration, and node deployments
Configure routing, switching, and firewall hardware and software under change control, using technologies such as Cisco IOS and equivalents
Monitor network device and link states, identify hardware or path failures, and report on affected links, sites, and activities
Troubleshoot diverse faults with peer teams, exhaust all fault possibilities, and take ownership of faults within your area of responsibility
Maintain secure boundary interfaces, ensuring firewalls only permit traffic using the ports and protocols approved in Authority to Operate (ATO) documents
Support collaboration service deployments and ongoing operation across network bearers, including Network Address Translation (NAT) traversal of Voice over IP (VoIP) and Video Teleconference (VTC) protocols
Generate Configuration Management Database (CMDB) inputs and pass Network Configuration Item (CI) state changes to the Configuration Manager
Apply ITIL service management principles, including participation in Change Advisory Boards (CAB), and use IT service management toolsets for ticketing, scheduling, and prioritisation
Contribute technical designs and content to knowledge repositories, and provide input to policy, process, and procedures on request
Provide team leader functions where required,



with appropriate support and training provided
Handle classified information in accordance with standing ADF instructions, including the Defence Security Principles Framework (DSPF) and the Australian Government Information Security Manual (ISM)
Protect Commonwealth Intellectual Property and uphold Defence international obligations
IT Service Management certification
5+ years of network industry IT experience, relevant military experience, or a combination of both.
Alternatively, a tertiary degree or vocational qualifications in a closely related discipline
Demonstrated experience configuring routing, switching, and firewall technologies such as Cisco IOS under change control
Demonstrated ability to troubleshoot complex network faults through to resolution
An unrestricted ability to deploy to Australian Defence Force (ADF) military installations in support of training activities and events
Demonstrated ability to communicate effectively with technical peers and frontline IT leadership
Demonstrated ability to conduct yourself in a manner reflective of ADF values
Experience maintaining secure network boundaries and firewall rule sets aligned to approved ATO documents
Experience supporting collaboration services, including VoIP and VTC, across secure network bearers
Experience contributing to CMDB and configuration management processes
Experience working within Defence or similarly secure, highly regulated environments
Security Clearance Requirement
Must be an Australian Citizen
Must have an AGSVA NV1 (minimum) Security Clearance
AGSVA NV2 Security Clearances preferred
Working Arrangements
100% onsite in Canberra
Occasional travel may be required
Why Profectus
Profectus partners with Defence to deliver trusted, secure ICT capability across critical environments.
We take a long‐term, relationship‐driven approach, supporting our people across the full lifecycle of their engagement while contributing to outcomes of national importance.
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📌 Network Engineer (Canberra)
🏢 Profectus
📍 Canberra