Technical Specialist, Network Security

Efiniti Telecommunications Services is an Australian-owned telecommunications and ICT professional services company delivering end-to-end network and ICT solutions across carrier, corporate, government, and technology vendor sectors.

We are seeking an experienced Technical Specialist, Network Security to lead the design, governance, and evolution of our network security capabilities.

Location: Macquarie Park 2113 NSW
Contract Term: 12 months Contract + Extension

This role offers hybrid work arrangements with a base location at Macquarie Park.

About the role:

This is a senior technical role responsible for providing subject matter expertise across firewall technologies, network security architecture, segmentation, secure connectivity, and cloud networking. You will play a key role in defining security standards, supporting strategic initiatives, and ensuring secure, scalable, and resilient network services across the business and our customers.

Key Responsibilities

• Lead the design and governance of enterprise network security architectures.

• Define and maintain standards for firewalls, network segmentation, remote access, and secure connectivity.

• Provide technical leadership for firewall platforms including policy governance, optimisation, and lifecycle management.

• Develop security architecture patterns aligned with Zero Trust and defence-in-depth principles.

• Evaluate emerging technologies and drive innovation through technical assessments and proof-of-concepts.

• Support project and operational teams with expert guidance on complex network security challenges.

• Collaborate with engineering, cloud, and infrastructure teams to deliver secure-by-design solutions.

About You

• 10+ years' experience in network and cyber security, including experience in network security architecture or technical specialist roles.

• Strong hands-on expertise with enterprise firewall technologies such as Palo Alto, Fortinet, Check Point, or Cisco.

• Deep understanding of network segmentation, IDS/IPS, VPNs, SD-WAN, SASE, Zero Trust, DDoS protection, and cloud network security.

• Experience developing technical standards, design patterns, and security governance frameworks.

• Strong troubleshooting, analytical, and stakeholder management skills.

• Relevant certifications such as PCNSE, NSE, CCNP Security, CCIE Security, CISSP, or equivalent are highly regarded.

Why join Efiniti?

We know there are many aspects of our employees' lives that are important, and work is only one of these. That is why we offer benefits to help work fit with your life, including:

• A work environment where safety is always the number one priority

• Competitive salary package

• Learning and development opportunities to support your technical or leadership career path

• A dynamic and supportive team environment

How to apply:

If you believe you are the right candidate, please apply now by clicking "Apply for this job".

Please submit your CV and cover letter outlining your qualifications, network engineering experience, and relevant telecommunications background.

Due to the high volume of applications, only shortlisted candidates will be contacted.

Efiniti values social and cultural diversity and is committed to equal employment opportunity and the provision of a safe and healthy work environment.