Job Overview & Organization Mission

Design, deploy, and secure high-capacity enterprise software-defined networks (SD-WAN) and next-generation firewalls for major corporate clients at NTT.

NTT Australia is hiring a Senior Network Security Engineer to join our North Sydney Network Architecture team. You will lead the technical design, deployment, and optimization of zero-trust network segmentation, Palo Alto next-generation firewalls (NGFW), Cisco SD-WAN fabrics, and identity-driven access controls (Cisco ISE) for tier-1 enterprises.

As a key member of the team at NTT Australia in Sydney, NSW, you will play a central role in driving excellence, upholding top-tier Australian industry standards, and contributing directly to the strategic milestones of one of the nation’s premier employers.

Key Duties & Core Responsibilities

In this critical role, your operational duties and key performance responsibilities will encompass:

• Architect, configure,: Architect, configure, and troubleshoot enterprise Palo Alto and Fortinet Next-Generation Firewalls.
• Deploy and: Deploy and optimize Cisco and Silver Peak SD-WAN architectures across national branch offices.
• Design zero-trust: Design zero-trust microsegmentation and Network Access Control (NAC) policies utilizing Cisco ISE.
• Conduct complex: Conduct complex routing configuration (BGP, OSPF, MPLS) and cloud interconnects (AWS DirectConnect, Azure ExpressRoute).
• Provide technical: Provide technical escalation support for complex network security outages and security advisory patching.

Required Qualifications, Licenses & Experience

To be successful in this position at NTT Australia, candidates are expected to satisfy the following essential selection criteria:

• Mandatory Qualification: Degree in Computer Networks, Cyber Security or equivalent certifications (PCNSE, CCNP Security).
• Relevant Experience: Minimum 5+ Years of verified industry experience in Australia or recognized overseas equivalence.
• 5+ years of dedicated experience in network engineering and enterprise network security.
• Palo Alto Certified Network Security Engineer (PCNSE) or CCNP Security certification.
• Demonstrated experience deploying SD-WAN solutions and managing high-throughput BGP routing.
• Strong understanding of modern security frameworks, TLS decryption, and IPS/IDS tuning.

Core Competencies & Key Technical Proficiencies

The successful applicant will possess demonstrated capabilities across the following domain skill sets:

Salary, Compensation & Employee Benefits

At NTT Australia, we understand that our people drive our achievements. An outstanding remuneration and wellbeing package is provided in line with Australian benchmarks:

• Competitive Remuneration: AU$150,000 – AU$180,000 per year + standard Australian Superannuation (11.5%).
• Competitive salary ($150,000 – $180,000) + superannuation + vendor training bonuses.
• Prime North Sydney office location overlooking Sydney Harbour with hybrid work flexibility.
• Global mobility opportunities across NTT’s worldwide technology operations.
• Leave Entitlements: 4 weeks annual leave (with 17.5% annual leave loading where applicable) plus 10 days paid personal/carer’s leave.
• Flexible Work: Progressive work-life balance options with supportive corporate culture and leadership development pathways.

About the Employer: NTT Australia

NTT Australia is a leading technology services enterprise delivering connected networks, cybersecurity, and managed IT services to global corporations.

NTT Australia is deeply committed to building diverse, equitable, and culturally inclusive work environments. We proudly celebrate diversity and welcome applications from all qualified individuals including First Nations Australians, people with disabilities, and candidates from culturally and linguistically diverse backgrounds.

Application Process & Next Steps

Applications for this position are currently open and being reviewed on a rolling basis. Suitable candidates are encouraged to apply as early as possible before the published closing date.

Please prepare an updated Curriculum Vitae (CV) and a tailored Cover Letter highlighting your relevant experience against the key selection criteria outlined above.

To proceed with your application, click the Apply on Employer Site button to access the official NTT Australia careers gateway.