Keep enterprise and operational technology networks secure and reliable across a major Australian telecommunications business.
Enterprise and OT network ownership
LAN, WAN, wireless, firewall, VPN and SD-WAN
Major Australian telecommunications business
In short:
A hands‐on network engineering role with a major Australian telecommunications business, covering corporate and operational technology networks across multiple sites nationally, from design and rollout through to incident resolution and the IT and OT boundary. Extensive hands‐on enterprise networking experience, with OT or industrial network exposure, required. Regular interstate and regional travel.
D'Arcy Weil is recruiting a Network Infrastructure Engineer on behalf of a major Australian telecommunications business with corporate and operational technology networks spread across multiple sites. The Sydney‐based role is hands‐on and technical, covering enterprise and OT networks, including:
Running and improving LAN, WAN, wireless, firewall, VPN and SD‐WAN environments across corporate and operational sites
Designing and building secure network architectures across IT and OT, and leading upgrades, site rollouts and connectivity migrations
Diagnosing complex faults and restoring services quick when incidents hit operations
Supporting secure industrial networks and managing the boundary between IT and OT
Keeping topology diagrams, configurations, procedures and standards accurate and current
It suits an engineer who is equally at home in a corporate comms room and on an operational site, and who treats security as part of every design decision.
The Role
Infrastructure management:
Run and evolve enterprise LAN, WAN, wireless, firewall, VPN and SD‐WAN environments across corporate and operational sites, keeping network health, capacity and performance in check




Design and delivery:
Design and implement secure network architectures across IT and OT, and lead the technical work on upgrades, site rollouts and connectivity migrations
Incident resolution:
Diagnose and fix complex network faults, and restore services quickly when incidents affect business operations
OT and industrial networking:
Operate and support secure industrial network environments, and manage the IT and OT boundary with sound security discipline
Documentation and standards:
Keep network documentation accurate and current, including topology diagrams, configurations, operating procedures and engineering standards
About You
A tertiary qualification in information technology or a related discipline
Cisco CCNA or a comparable networking certification
Extensive hands‐on experience with LAN, WAN, wireless, firewall, VPN and SD‐WAN technologies
Demonstrated experience in OT or industrial network environments
Strong network security knowledge, including threat mitigation and secure design principles
Experience with monitoring, incident management and change implementation in complex environments
Willingness to travel interstate and regionally on a regular basis
What's on Offer
Base of $160,000 to $170,000 plus superannuation, plus travel allowances
Ownership of enterprise and OT networks across a major Australian telecommunications business
Hands‐on work across both corporate IT and industrial environments
Variety across design, rollout, incident response and security
Structured career development and certification support
Flexible working arrangements where the role allows
A Sydney base
Only candidates with current Australian working rights will be considered. All applications and enquiries will be treated in strict confidence.
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📌 Network Infrastructure Engineer | Enterprise & Ot Networks | Sydney
🏢 D'Arcy Weil
📍 Sydney