Senior Network Engineer
Location: Canberra, Australian Capital Territory, Australia
The Role
The Senior Network Engineer role with a23 is a permanent full‑time position in our growing company. The focus of this senior position will be to work with our Enterprise Networking Practice with a strong focus on customer service delivery.
About A23
a23 is an Australian owned Systems Integrator headquartered in Canberra. We provide specialist ICT services across diverse technologies and are recognised as a valued strategic partner for Government and private sector organisations. a23 has grown to become a prominent strategic partner, focused on servicing the needs of small to medium‑sized agencies to deliver quality outcomes through expert people, great relationships, and fit‑for‑purpose technologies.
Why work for a23?
a23 is a well‑established Australian technology company experiencing strong growth, fuelled by rising demand for our expertise in Cyber Security, Networking, Cloud, Data and AI, and Hybrid Cloud. We bring the agility and innovation of a start‑up backed by the maturity, credibility, and delivery assurance of an established market leader. Our teams deliver secure, scalable solutions to government and enterprise clients, blending deep technical capability with a client‑first culture. Whether enabling AI‑driven insights, transforming hybrid infrastructure, or securing mission‑critical environments, a23 is trusted to deliver at a national scale.
We offer a flexible, hybrid working environment alongside a range of employee benefits such as an annual wellbeing allowance.
Role Responsibilities
* Strong experience in Senior Network Engineering concepts and network protocols.
* Demonstrated ability to develop and implement detailed network designs and diagrams.
* Demonstrated design and implementation experience across all of the following:
o Firewall (Fortinet, Cisco, Palo Alto)
o Switching (LAN, Campus, Data Centre)
o Wireless Networking (Cisco/Aruba)
o Network monitoring capabilities
* Demonstrated experience in network infrastructure as code deployments (Fortinet, Tenable preferred).
* Demonstrated exposure to cloud networking technologies (MS Azure/AWS).
* Demonstrated technical experience across BGP, OSPF, IPSEC, SD WAN and Data Centre cabling and associated infrastructure.
* Demonstrated technical experience across Routing, Switching, Wireless, SD‑WAN, Load balancing, DNS, DHCP, IP Address Management (DDI).
* Capability to resolve escalated BAU related incidents on behalf of customers, seeing them through to resolution.
* Develop and implement technical designs, guides, Standard Operating Procedures (SOPs) and documentation to meet a23 and customer requirements.
* Collaborate with cross‑functional teams to understand client requirements and provide high level support, including technical consultations, demonstrations, and assessments.
* Attend a23 vendor events and training.
* Stay updated on industry trends and emerging technologies in relevant areas and a23 technology partners products.
* Obtain and maintain certifications in vendor products and solutions applicable to one or multiple ICT domains related to Enterprise Networking.
Skills, Experience and Qualifications
* Australian Government Security Clearance maintained at Negative Vetting Level 1 (NV1).
* Diploma or Bachelor Degree in Computer Science, Networking or a related discipline.
* Strong experience working across multiple customers and environment simultaneously in a senior capacity.
* Demonstrated expertise in network/systems engineering of at least 5 years.
* Demonstrated experience with popular networking vendors (e.g. Cisco, Aruba, Fortinet, Dell, Juniper, Palo Alto).
* Strong problem‑solving and troubleshooting skills, with the ability to handle complex customer solutions.
* Ability to adapt to changing priorities and work effectively in a fast‑paced, dynamic environment.
* Experience in Presales would be an advantage.
* Excellent communication and interpersonal skills, with the ability to effectively collaborate with internal teams and external stakeholders.
* Commitment to maintain relevant professional certifications to enable the delivery of professional services offered by a23.
Inclusive Recruitment at a23
a23 values all career paths and experience so if you do not meet all the qualifications or requirements stated for this role, we would still love to hear from you a23 is an equal opportunity employer committed to a diverse, inclusive, healthy and safe work environment. We are dedicated to attracting, retaining and developing our people regardless of gender identity, ethnicity, sexual orientation, disability, age and neurodiversity. We invite people of all backgrounds and identities to submit their application. Applications are strongly encouraged from the Aboriginal and/or Torres Strait Islander, LGBTQIA+ and neurodivergent communities.
Apply Now
Applications may be assessed as they are received and as such the recruitment process may be finalised prior to the closing date.
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