Network Security Engineer - Firewalls & Load Balancers-Australia only applicable

Location: Sydney, NSW
Experience: 5+ Years
Work Rights: Only Australian Citizens and Permanent Residents (PR). No sponsorship available.

About the Role

We are seeking an experienced Network Security Engineer to join a high-performing enterprise technology team in Sydney. The ideal candidate will have strong expertise in firewall technologies, load balancing, proxy solutions, and enterprise network security operations.

Key Responsibilities

• Configure, implement, and support enterprise firewall solutions.
• Manage and troubleshoot load balancer and network security infrastructure.
• Perform firewall policy reviews, rule implementations, and security change requests.
• Diagnose and resolve complex firewall, proxy, and load balancer issues.
• Support enterprise infrastructure projects, including workload migration initiatives.
• Collaborate with infrastructure, cloud, and application teams to ensure secure and reliable network services.

Required Skills & Experience

• 5+ years of experience in Network Security or Network Engineering.
• Strong hands on experience with Cisco Firewalls, FortiGate, and VMware NSX.
• Experience with F5 LTM/GTM and NSX Load Balancers.
• Strong knowledge of proxy technologies, including Cisco IronPort and Zscaler.
• Experience implementing and managing Cisco firewall changes.
• Hands on experience with Cisco CSM and Cisco FMC firewall platforms.
• Solid understanding of TCP/IP, routing, switching, VLANs, NAT, VPNs, and network security fundamentals.
• Strong troubleshooting and analytical skills.
• Exposure to enterprise infrastructure or cloud workload migration projects.

Preferred

• Experience working in large enterprise environments.
• Excellent communication and stakeholder management skills.