Brennan. Where true performance thrives.

At Brennan, we believe that how technology is delivered is every bit as important as what the technology is. We focus on creating real and relevant value for customers with solutions that fit their specific needs and always reflect their true interests. It’s a claim backed by our True Performance System - a way of working engineered to get us closer, and deliver better, for our customers and their actual experience of technology.

Why join Brennan

True performance for our customers starts with a true belief in our people.

It’s why we’ve structured our business to help our teams, and their talents, shine bright. It's why we’ve created a workplace where people of all backgrounds, beliefs and experiences are welcomed and empowered. And it’s why we’ve built an organisation where real innovation makes a genuine impact and generates true rewards for our team members.

True rewards

In addition to competitive remuneration, Brennan offers extensive benefits, including:

- Training and certification bonuses
- Culture Awards that recognise excellence
- Brennan Daredevils - our annual, all-expenses paid trip awarded to our top performers and outstanding contributors
- Vibrant, fun social activities
- Discounted hardware and software
- An workplace that embraces learning and development

The Role

Due to fast paced growth, Brennan's Cybersecurity practice is seeking a Network Security Engineer to join our Secure Networking team in Adelaide.





This is a technical role that delivers a range of network and cybersecurity services to the market in a project-based delivery methodology.

Key Responsibilities

- Participate in customer workshops to capture requirements for solution development.
- Assist in system discovery and analysis to drive solution development and delivery.
- Prepare first-draft design documents under the guidance of the Senior team.
- Develop documentation artefacts to describe technical solutions, configurations, and procedures.
- Execute system changes, upgrades, and implementations.
- Utilise scripting and automation where applicable.

Key Skills:

- Clear and concise communication
- Attention to detail with the ability to discern checkbox compliance from security control intent and efficacy
- A strong understanding of network and network security technologies such as:
- Wired and Wi-Fi Networking, Next-Generation Firewalls, VPN, SD-WAN and SASE technologies
- NAC and network authentication, Data Centre network virtualisation technologies
- Understanding of Microsoft and VMWare platforms (e.g., Active Directory / Entra ID, VMware ESXi, NSX)
- Public cloud platforms (e.g., Azure, AWS, GCP, OCI)
- Security concepts and frameworks (e.g., Essential 8 and ISM initiatives, network segmentation)

As part of our hiring process, you will be required to undertake a National Criminal History Check.

Brennan is an equal opportunity employer.

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📌 Network Security Engineer (Adelaide)
🏢 Brennan
📍 Adelaide