Senior Network Security Architect – Fortinet & Check Point

Singapore Telecommunications; Sydney; On-site; AUD 180,000 - 240,000; Full time

Benefits offered by this job

Employee discounts

Parental Leave

Diversity initiatives

Wellbeing services

Job summary

Optus in Sydney is seeking a senior network security expert to design, govern and manage secure network architectures, aligning with security standards. Collaboration across engineering, cyber security and operations ensures robust solutions such as firewalls, segmentation, and encryption.

You will lead security improvements, mentor teams, and support risk assessment, incident response and lifecycle processes to keep networks secure and compliant.

Qualifications

• Degree in Telecommunications Engineering or related field.
• 8+ years in telecom or large enterprise environments.
• Strong Fortinet and Check Point expertise.
• Experience communicating with senior stakeholders.

Responsibilities

• Lead PIR and rep CSE across problem management engagements.
• Design, implement, and maintain Fortinet/Check Point firewall solutions.
• Provide Tier-3 technical support for complex security incidents.
• Translate requirements into scalable, secure firewall designs.
• Deliver migrations, upgrades, and policy optimization.
• Apply routing/switching knowledge to security traffic flows.
• Collaborate with Network, Cyber Security, and Operations teams.
• Perform security assessments, troubleshooting, and root-cause analysis.
• Contribute basic scripting/automation to operations.
• Ensure designs meet security standards and lifecycle needs.

Skills

Fortinet

Check Point

Firewall design

VPN

Python

Perl

Routing & switching

Incident response

Education

Bachelor's degree in Telecommunications Engineering or related field

Tools

Fortinet devices

Check Point appliances

Job description

Optus in Sydney is seeking a senior network security expert to design, govern and manage secure network architectures, aligning with security standards. Collaboration across engineering, cyber security and operations ensures robust solutions such as firewalls, segmentation, and encryption.

You will lead security improvements, mentor teams, and support risk assessment, incident response and lifecycle processes to keep networks secure and compliant.