Senior Network Security Engineer
Summary
A 6-month senior contract in Sydney CBD (2 days/week onsite) owning enterprise network and security platforms end to end across on-prem, data centre, AWS cloud and branch environments. Day to day covers firewall/traffic policy, complex incident leadership, AWS networking, NIST/CISM risk practices and mentoring, using Cisco, Palo Alto, SD-WAN, Infoblox and F5/NGINX.
We are looking for a Senior Network & Security Engineer for an initial 6 month contract located in the Sydney CBD. You will join a team of 4 and will be responsible for the secure & reliable operation and continuous improvement a number of enterprise network and security platforms.
This is a senior role that will require you to own critical platforms end to end whilst upholding cyber security standards.
Responsibilities
- Provide high level support for complex incidents, including incident leadership, root cause analysis, and remediation.
- Own the enterprise network and security platforms across on‑prem, data centre, cloud (AWS), and branch environments.
- Configure and optimise firewall policies, threat prevention, and traffic inspection.
- Support cloud and hybrid networking, with a strong focus on AWS networking.
- Apply cyber risk management practices (NIST, CISM)
- Mentor junior members of staff.
- Have the ability to work after hours when required for critical responses.
- 8+ years' experience in senior network and security engineering roles within large enterprises - financial services a bonus but not essential.
- Excellent experience with Cisco (Routing, Switching, DC, Wireless), Palo Alto, SD‑WAN, Infoblox, and F5/NGINX.
- Strong experience working on enterprise networks and managing complex environments.
- Proven experience designing and operating AWS networking.
- Experience with network automation.
- Strong understanding of network security, vulnerability management, and compliance.
- Ability to multi-task and find solutions to complex issues.