Senior Technical Consultant - Network Security
First seen by Alion on Sep 2, 2026.
About Brennan :
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.
Why join Brennan :
True performance for our customers starts with a true belief in our people. Weve structured our business to help our teams, and their talents, shine bright. We've created a workplace where people of all backgrounds, beliefs and experiences are welcomed and empowered. We've built an organisation where real innovation makes a genuine impact and generates true rewards for our team members.
True rewards :
- 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 environment that embraces learning and development.
Purpose of role :
Brennans Cybersecurity Practice plays an essential role in Brennans overall business strategy. We are seeking a talented Senior Technical Consultant to join our Secure Networking team. You will bring expertise and a can-do attitude to develop and deliver technical solutions that strengthen the cyber security posture of our clients. The Senior Technical Consultant is a technical role that delivers a range of network and cybersecurity services to the market in a project-based delivery methodology.
Total Experience : 5 - 10 years
Role responsibilities :
- Forge strong relationships within Brennan and with our customers.
- Lead customer workshops to capture requirements for solution development.
- Communicate technical solutions and their business benefits to diverse stakeholders.
- Design and implement end-to-end architectures aligned with appropriate security standards.
- Develop documentation artefacts to describe technical solutions, configurations, and procedures.
- Execute system changes, upgrades, and implementations.
- Advise on industry best practices and governance-compliant solutions.
- Utilise scripting and automation where applicable.
- Attain and maintain knowledge and certifications in alignment with Brennans vendor strategy.
- Conduct comprehensive system discovery and analysis to drive solution development and delivery.
Key competencies :
- 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).
Skills
Cyber Security, Network Security, Cloud Security, Datacenter, SDWAN, Security, Information Security, Active Directory, Entra ID