Network Administrator

Whizdom; Adelaide; Hybrid; AUD 153,000 - 187,000; Full time

Benefits offered by this job

$170,000 + super + performance bonus

Long-term engagement

Exposure to cutting-edge technologies

Job summary

Whizdom is seeking a skilled network engineer for a critical infrastructure transformation project in Australia. The role involves executing network transitions, managing Cisco ACI configurations, and ensuring seamless delivery across live environments.

The ideal candidate will have significant experience in enterprise network administration, particularly with Cisco ACI, and a strong capability to troubleshoot complex issues under pressure. This position offers a competitive salary of $170,000 plus benefits and the chance to work on nationally significant systems.

Qualifications

• 5–7+ years experience in enterprise network administration.
• Proven hands-on experience with Cisco ACI environments.
• Strong understanding of network segmentation and IP addressing.

Responsibilities

• Configure and manage Cisco ACI fabric.
• Execute DNS, DHCP and IP transition activities.
• Troubleshoot connectivity issues across multiple layers.

Skills

Network engineering

Cisco ACI

Troubleshooting

Infrastructure transition

Network segmentation

Job description

About our client

Our client is delivering a large-scale, mission-critical infrastructure transformation programme of national significance, focused on modernising core platforms within a highly secure and regulated environment.

This programme spans multiple data centres and secure environments, forming part of a broader enterprise-wide uplift of critical infrastructure capability. It involves the migration of legacy virtualised environments into a modern, highly segmented and secure architecture powered by Cisco ACI and next-generation networking principles.

Operating within a Defence-aligned environment, the infrastructure being built and transitioned is fundamental to ongoing operations, meaning every change, configuration and cutover must be executed with precision, discipline and zero margin for error.

This is a complex, multi-stream programme delivered in structured migration waves, where network stability, segmentation and connectivity are critical to the success of the overall transformation.

About the role

You will play a key role in the execution layer of the network transformation, working hands-on within migration waves to ensure seamless delivery across a Cisco ACI-driven architecture.

This role sits at the centre of delivery — you will be working directly on cutovers, transitions and live environment changes, ensuring network integrity across compute, storage and VDI workloads.

Key responsibilities

• Configure and manage Cisco ACI fabric, including EPGs, Contracts, policy enforcement and segmentation
• Execute DNS, DHCP and IP transition activities aligned to migration waves and cutover schedules
• Support and deliver network cutovers within tightly controlled maintenance windows
• Validate and monitor network isolation and micro-segmentation policies during migration
• Troubleshoot connectivity issues across compute, storage and VDI layers
• Work closely with architects and engineers to ensure designs are implemented correctly and consistently
• Support high-pressure migration events, ensuring minimal disruption to critical services

This is a hands-on, delivery-focused role, operating in an environment where attention to detail, speed of execution and technical accuracy are critical.

The successful candidate

You are a strong network engineer who thrives in high-pressure, high-impact delivery environments, and is comfortable working within large-scale transformation programmes.

• 5–7+ years experience in enterprise network administration
• Proven hands-on experience with Cisco ACI environments (EPGs, Contracts, segmentation)
• Strong understanding of network segmentation, IP addressing, DNS/DHCP and migration cutovers
• Experience supporting data centre migrations or large-scale infrastructure transitions
• Strong troubleshooting capability across multi-layered environments (network, compute, storage)
• Able to operate calmly and effectively during critical cutover windows
• NV2 clearance preferred, OR NV1 with NV2 actively in progress (mandatory for consideration)

What is on offer

• $170,000 + super + performance bonus
• Opportunity to work on a mission-critical programme supporting nationally significant systems
• Long-term engagement (initial 2-year fixed term contract with strong extension potential)
• Melbourne or Adelaide preferred, with flexibility for FIFO arrangements across Australia
• Work alongside high-calibre architects and engineers in a high-performing delivery team
• Exposure to cutting-edge network technologies in a complex, large-scale environment

Why this opportunity stands out

This is not a BAU network role.

You will be working at the centre of a live transformation programme, contributing directly to the delivery of infrastructure that supports critical national capability.

The environment is fast-paced, highly structured and demanding — but it offers the opportunity to build experience at scale, work with leading technologies, and be part of something genuinely meaningful.

If you’re looking to step into a role where your work has real impact, real complexity and real purpose, this is it.