Systems Administrator | 6-month Fixed Term Contract
Leidos LLC
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Benefits offered by this job
Job summary
Leidos Australia is seeking a Systems Administrator to design, implement and support enterprise infrastructure across Windows, Unix and Linux, including on-premises, cloud and hybrid environments. You will build, test and deploy infrastructure components, ensure secure operations, and collaborate with project managers, architects and cybersecurity teams to deliver resilient solutions.
The role emphasizes automation, standardisation and continuous improvement, with opportunities to contribute to
Qualifications
- Experience in systems administration, infrastructure engineering or a similar technical role supporting enterprise environments.
- Knowledge of Windows, Unix and Linux operating systems, including server provisioning, configuration, patching, upgrades and lifecycle management.
- Understanding of core infrastructure services including Active Directory, DNS, DHCP, networking, storage, authentication, monitoring, backup and performance management.
- Experience with virtualisation technologies such as VMware and/or Microsoft Hyper-V, along with infrastructure troubleshooting and performance optimisation.
- Knowledge of infrastructure security, system hardening, vulnerability remediation, patch management and compliance requirements.
- Ability to develop technical documentation, support project delivery activities and work effectively with a range of technical and business stakeholders.
Responsibilities
- Build, configure, test and deploy infrastructure solutions across Windows, Unix, Linux, virtualised and cloud platforms, ensuring alignment with project requirements and operational standards.
- Support major technology initiatives including infrastructure migrations, upgrades, cloud adoption, technology refresh programs and platform modernisation projects.
- Collaborate with project managers, architects, cybersecurity specialists, vendors and operational teams to deliver secure, resilient and supportable solutions from implementation through to production handover.
- Contribute to continuous improvement through automation, infrastructure standardisation and operational best practices that enhance efficiency, reduce risk and improve service reliability.
Skills
Education
Tools
Job description
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 around 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. 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.
- 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.
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.
This is an opportunity to contribute to the delivery of critical infrastructure projects that support the security, reliability and modernisation of enterprise technology environments. As a Systems Administrator, you will play a key role in implementing and supporting infrastructure solutions across on-premises, cloud and hybrid environments. Build, configure, test and deploy infrastructure solutions across Windows, Unix, Linux, virtualised and cloud platforms, ensuring alignment with project requirements and operational standards. Support major technology initiatives including infrastructure migrations, upgrades, cloud adoption, technology refresh programs and platform modernisation projects. Collaborate with project managers, architects, cybersecurity specialists, vendors and operational teams to deliver secure, resilient and supportable solutions from implementation through to production handover. Contribute to continuous improvement through automation, infrastructure standardisation and operational best practices that enhance efficiency, reduce risk and improve service reliability.
We're looking for an infrastructure professional who enjoys solving technical challenges, delivering quality outcomes and working collaboratively across project and operational teams. You bring a practical approach to systems administration, a focus on security and reliability, and the ability to support infrastructure change in complex enterprise environments.
- Experience in systems administration, infrastructure engineering or a similar technical role supporting enterprise environments.
- Knowledge of Windows, Unix and Linux operating systems, including server provisioning, configuration, patching, upgrades and lifecycle management.
- Understanding of core infrastructure services including Active Directory, DNS, DHCP, networking, storage, authentication, monitoring, backup and performance management.
- Experience with virtualisation technologies such as VMware and/or Microsoft Hyper-V, along with infrastructure troubleshooting and performance optimisation.
- Knowledge of infrastructure security, system hardening, vulnerability remediation, patch management and compliance requirements.
- Ability to develop technical documentation, support project delivery activities and work effectively with a range of technical and business stakeholders.
- Experience supporting infrastructure across cloud and hybrid environments.
- Knowledge of AWS, Microsoft Azure, Oracle Cloud Infrastructure or other enterprise cloud platforms.
- Experience with automation and scripting technologies such as PowerShell, Shell scripting, Python, Ansible or equivalent tools.
- Familiarity with Infrastructure as Code, configuration management and cloud modernisation practices.
- Relevant Microsoft, Linux, VMware, cloud or infrastructure certifications.
- Tertiary qualifications in Information Technology, Computer Science, Engineering, or a related discipline.
This role requires the successful applicant to be an Australian citizen and hold an NV-1 security clearance.
Original Posting: For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
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.
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 $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.
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.
- competitive compensation
- Health and Wellness programs
- Income Protection
- Paid Leave
- Retirement
More details are available here.
Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com.
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.
If you have any questions about the role or recruitment process, please contact Praveena Sundarakumar, Talent Acquisition.
At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it.
We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail.
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