Network administrator

Leidos Australia delivers IT and airborne solutions that protect and advance the Australian way of life. Our 2000 local experts, backed by our global experience and network of partners, are working to solve the world's toughest challenges in government, intelligence, defence, aviation, border protection and health markets.

Leidos Australia is seeking multiple skilled Network Administrators to join our AGO GEO SPACES program, delivering advanced national security technology solutions in a secure, high‐compliance government environment. These key technical roles are responsible for the installation, configuration, maintenance, and reliable operation of the organisation's data and voice communication networks, ensuring the stability, integrity, and security of critical network services that support mission‐essential operations.

• Manage and maintain network infrastructure hardware, including switches, routers, firewalls and wireless access points, to ensure high availability and performance.
• Provide Level 2 and Level 3 incident response and resolution for network outages and complex connectivity issues, minimising disruption to business operations.
• Implement and enforce network security policies, manage firewall rules and conduct ongoing monitoring to safeguard the network from unauthorised access and cyber threats.
• Configure network devices and maintain accurate, up-to‐date documentation of network topology, configurations and procedures.
• Monitor network performance, identify bottlenecks and apply optimisation strategies to maintain optimal network health and capacity.

• Strong understanding of core networking principles, including TCP/IP, DNS, DHCP, VLANs and routing protocols such as OSPF and BGP.
• Hands‐on experience working with enterprise‐grade networking hardware, including platforms such as Cisco, Juniper, Palo Alto and Fortinet.
• Experience managing and troubleshooting network security devices and firewall policies.
• Proven ability to use network analysis and monitoring tools, such as Wireshark and SolarWinds, to diagnose and resolve complex network issues.
• Australian Citizen who holds an active TSPV security clearance and the ability to meet DISA / OSA requirements.

We encourage applications from candidates who meet most of the above; we value strengths and desire to learn.

Pay and benefits are fundamental to any career decision. Employment benefits include competitive compensation, health and wellness programs, income protection, paid leave and retirement. Pay range for this job level is a general guideline.

Leidos Australia is an equal opportunities organisation and is committed to creating a truly inclusive workplace. We welcome and encourage applications from Aboriginal and Torres Strait Islanders, culturally and linguistically diverse people, people with disabilities, veterans, neurodiverse people, and people of all genders, sexualities, and age groups.

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.