Network Administrator

Leidos Australia; Bendigo; On-site; AUD 90,000 - 130,000; Full time

Job summary

Leidos Australia is seeking multiple experienced Network Administrators to join our GEOSPACES program, supporting advanced national security technology in a secure, high-compliance government environment. You’ll help keep mission-critical network services available, secure and performing reliably.

You’ll manage and maintain enterprise networking infrastructure, implement security controls and provide Level 2/3 incident response in a collaborative, cross-functional team.

Qualifications

• Experience with enterprise networking technologies and security policies.
• Hands-on administration of enterprise networking devices (Cisco/Juniper/Palo Alto/Fortinet).
• Experience with network analysis and monitoring tools (Wireshark, SolarWinds).
• Ability to create and maintain clear technical network documentation.

Responsibilities

• Manage and maintain network infrastructure including switches, routers, firewalls and wireless APs.
• Provide Level 2/3 incident response and troubleshooting for complex network issues.
• Implement and maintain network security controls and monitoring to protect services.
• Configure devices, monitor performance and maintain accurate topology and procedures.

Skills

TCP/IP

DNS/DHCP

VLANs

OSPF/BGP

Cisco/Juniper/Palo Alto/Fortinet

Firewalls

Wireshark/SolarWinds

Documentation

Tools

Cisco

Juniper

Palo Alto

Fortinet

Job description

About Leidos Australia

At Leidos Australia, our work goes beyond a job title. We design, build, operate and support the systems, services and capabilities that help protect and advance the Australian way of life.

Backed by a global organisation of more than 40,000 people, our Australian team of about 2,000 has partnered with government, defence and national security customers for more than 30 years. We deliver mission-critical solutions where reliability, trust and purpose matter.

Benefits

Leidos is a destination for people who want their work to have purpose, their contribution to be recognised, and their career to grow without needing to fit a single mould. Meaningful work is supported by benefits, flexibility and career pathways that help you grow while balancing life outside work. This includes:

• Flex Your Way – Tailor work to your life with options including Life Days (up to 12 extra days off per year), part-time arrangements, job sharing, and compressed hours.
• Wellbeing That Matters – Free access to Headspace and MeQuilibrium, plus dedicated wellness spaces to support your mental, physical, and emotional wellbeing.
• Learn Without Limits – Access over 120,000 on-demand courses, alongside technical, project management, leadership, and professional development opportunities.
• Work That Makes an Impact – Contribute to nationally significant projects that matter, solve complex challenges, and accelerate your career through unique growth opportunities.
• Build Your Future – Whether you're deepening technical expertise or preparing for leadership, we'll invest in your development every step of the way.
• And Much More – These are just a few of the ways we invest in our people and help them thrive.

About The Team

You’ll join a team where people work with integrity, inclusion, innovation, agility, collaboration and commitment. In practice, that means sharing ownership, solving complex problems together and staying connected to the customer context, the purpose behind the work and how each role contributes to meaningful outcomes.

The Mission Software Solutions business delivers customized and off-the-shelf software solutions to Defence, Intelligence and other Government sectors. The business also builds capabilities that can be used for a wide range of applications in both traditional and non-traditional environments; providing leadership in the advancement of technological modernisation of complex enterprises within Government.

The Opportunity

Leidos Australia is seeking multiple experienced Network Administrators to join our GEOSPACES program, supporting advanced national security technology in a secure, high-compliance government environment. You’ll help keep mission-essential network services available, secure and performing reliably.

In This Role, You Will

• Manage and maintain network infrastructure, including switches, routers, firewalls and wireless access points, supporting the availability and performance of critical data and voice networks.
• Provide Level 2 and Level 3 incident response, troubleshooting complex network and connectivity issues and restoring services with minimal operational disruption.
• Implement and maintain network security controls, including firewall policies and monitoring, to protect services from unauthorised access and cyber threats.
• Configure network devices, monitor performance and capacity, identify opportunities for optimisation, and maintain accurate network topology, configuration and procedural documentation.

About You

You’ll bring practical network administration experience and the technical capability to troubleshoot and maintain enterprise networks in a secure operational environment.

Essential

• Experience with networking fundamentals including TCP/IP, DNS, DHCP, VLANs and routing protocols such as OSPF and BGP.
• Hands‑on experience administering enterprise networking technologies such as Cisco, Juniper, Palo Alto or Fortinet.
• Experience managing and troubleshooting firewalls, network security devices and associated security policies.
• Capability in diagnosing and resolving complex network issues using network analysis and monitoring tools such as Wireshark or SolarWinds.
• Ability to maintain clear and accurate technical documentation covering network configurations, topology and operational procedures.

Advantageous

• Experience providing Level 2 or Level 3 support within complex, secure or high-availability network environments.
• Experience supporting network performance monitoring, capacity management and optimisation activities.

Due to the nature of the role, you must be an Australian Citizen who holds an active TSPV security clearance; accompanied by the ability to be successful for a DISA/OSA.

Certain roles may be subject International Traffic in Arms Regulations (ITAR) requirements which may limit persons who hold dual nationality with certain proscribed countries from accessing material, or in the case of dual Australian‑U.S citizens, may require the candidate to obtain a U.S. Persons Abroad authorisation from the U.S DDTC.

What To Expect When You Apply

• An initial conversation with our Talent Acquisition team
• An interview with the hiring manager or interview panel
• Any role-specific assessment, technical discussion or customer step required for the position

Pay Range

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay And Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Commitment to Non-Discrimination

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.