Senior Network Security Architect – Fortinet & Check Point

Singtel Group; Australia; Remote; AUD 150,000 - 210,000; Full time

Benefits offered by this job

Employee discounts

Parental leave (16 weeks)

Diversity networks & wellbeing support

Job summary

Optus is seeking a senior network security expert to design and govern secure network architectures. You will lead security improvements, mentor teams, and support risk assessment and incident response while coordinating with engineering, cyber security and operations.

The role focuses on implementing firewall solutions, migrations, and high-availability designs using Fortinet and Check Point, with strong scripting and automation to improve efficiency.

Qualifications

• Degree in Telecommunications Engineering (or related field)
• 8+ years of experience in telecommunications or large enterprises
• Strong Fortinet and Check Point expertise
• Solid understanding of operational processes and fault diagnostics
• Experience in testing/PoC environments and platform limitations
• Scripting background (Python, Perl) is an advantage

Responsibilities

• Lead security engagements across problem management
• Design, implement, and maintain firewall solutions (Fortinet, Check Point)
• Provide Tier-3 technical support for complex incidents
• Translate requirements into scalable firewall designs
• Deliver firewall migrations, upgrades, and high-availability implementations
• Collaborate with Network, Cyber Security and Operations teams
• Conduct security assessments and root-cause analysis for firewall/VPN
• Contribute scripting/automation to improve efficiency
• Ensure designs align with security standards and lifecycle requirements

Skills

Network security

Security governance & risk

Stakeholder communication

Incident response

Scripting (Python, Perl)

Education

Degree in Telecommunications Engineering or related field

Tools

Fortinet

Check Point

Python

Perl

Job description

Optus is seeking a senior network security expert to design and govern secure network architectures. You will lead security improvements, mentor teams, and support risk assessment and incident response while coordinating with engineering, cyber security and operations.

The role focuses on implementing firewall solutions, migrations, and high-availability designs using Fortinet and Check Point, with strong scripting and automation to improve efficiency.