Network Administrator – Security & Optimization (Canberra)

Benefits
- Leidos Life Days: accrue up to 12 days of leave per year by working slightly more than the minimum weekly hours (2 hours per week for full‑timers).
- Leidos Life Hub: access discount offers or cashback rewards with over 400 Australian and International retailers.
- Family Friendly certified workplace that supports diverse family roles. Responsibilities
- 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. Qualifications
- 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. Due to the nature of the role, you must be a Australian Citizen who holds an active TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA. Diversity & Inclusion Leidos Australia is an equal‑opportunities organisation 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. Our five Advocacy Groups (Women and Allies Network, Young Professionals, Defence & Emergency Services, Action for Accessibility and Abilities and Pride+) provide an chance for team members to connect and collaborate on shared interests. Next Steps
- To apply for this role, follow the links or apply via our Careers page: company/global/australia/careers
- Recruitment process includes 2 interviews, background checks & DISA/OSA.
- Applicants may also need to meet International Traffic in Arms Regulations (ITAR) requirements. In certain circumstances this can place limitations on persons who hold dual nationality, permanent residency or are former nationals of certain countries as per ITAR 126.1.
- We are committed to making our recruitment process accessible to all candidates. Please contact our Careers team at if you’d like to discuss any additional support during your application or throughout the recruitment process. Legal & Compliance Pay and benefits are fundamental to any career decision. Leidos pays competitive compensation and offers Health and Wellness programs, Income Protection, Paid Leave and Retirement. Additional factors considered in extending an offer include responsibilities of the job, education, experience, knowledge, skills, and abilities, internal equity, and market data. 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. #J-18808-Ljbffr Apply on Kit Job: kitjobau.com/job/3ruoib