Senior Network Security Engineer – Cloud, SD-WAN & Firewalls

The Hospitals Contribution Fund Of Australia Limited; Sydney; On-site; AUD 130,000 - 170,000; Full time

Benefits offered by this job

Flexible working arrangements

Parental leave 18 weeks

Mental health programs

Job summary

The Hospitals Contribution Fund Of Australia Limited seeks a Senior Network & Security Engineer to oversee our enterprise network and security platforms across on‑prem, data centre, cloud, and branch environments. This is a hands-on senior role acting as a Tier 3 escalation point and technical authority for routing, switching, firewalls, wireless, SD‑WAN, and application delivery technologies.

You will own critical platforms end to end, lead complex incident response, and drive improvements

Qualifications

• 8+ years in senior network and security roles.
• Experience with Cisco, Palo Alto, SD‑WAN, Infoblox, F5/NGINX.
• AWS networking and hybrid cloud experience.

Responsibilities

• Own and operate enterprise network and security platforms across on‑prem, data centre, cloud, and branch environments.
• Provide Tier 3 support for complex incidents, including leadership and RCA.
• Lead vulnerability mitigation and lifecycle management of network systems.
• Mentor junior engineers and uplift engineering practices.
• Maintain clear documentation, runbooks, and operational procedures.

Skills

Network engineering

Security engineering

AWS networking

Python scripting

Terraform / IaC

Incident response

Tools

Cisco (Routing) & Switching

Palo Alto

SD-WAN

Infoblox

F5 / NGINX

Job description

The Hospitals Contribution Fund Of Australia Limited seeks a Senior Network & Security Engineer to oversee our enterprise network and security platforms across on‑prem, data centre, cloud, and branch environments. This is a hands-on senior role acting as a Tier 3 escalation point and technical authority for routing, switching, firewalls, wireless, SD‑WAN, and application delivery technologies.

You will own critical platforms end to end, lead complex incident response, and drive improvements