Linux Systems Administrator

Leidos Australia; Wollongong City Council; On-site; AUD 110,000 - 160,000; Full time

Benefits offered by this job

Flex Your Way

Wellbeing That Matters

Learn Without Limits

Work That Makes an Impact

Build Your Future

And Much More

Job summary

Leidos Australia is seeking a Linux Administrator to join the AGO GEO SPACES program and contribute to the delivery of advanced national security capabilities. You will maintain the Linux infrastructure and provide Level 2/3 support in a highly secure environment.

You will implement configurations using Ansible, Puppet or Chef, manage authentication services, and ensure security controls and compliance are consistently applied. Australian citizenship and a security clearance are required.

Qualifications

• Experience administering enterprise Linux environments (RHEL/CentOS/Ubuntu/SUSE).
• Experience with authentication and directory services (LDAP/OpenLDAP).
• Experience with Ansible, Puppet or Chef for automation.
• Knowledge of virtualization technologies (VMware ESXi/vSphere, KVM).
• Experience providing Level 2/3 support and troubleshooting complex infra issues.
• Ability to implement security controls, hardening and compliance requirements.

Responsibilities

• Provide Level 2 and Level 3 support across enterprise Linux environments.
• Administer and maintain virtualised and physical infrastructure (VMware, KVM, HP OneView, GreenLake).
• Develop, automate and standardise configurations with Ansible/Puppet/Chef.
• Support security and access management, automate routine admin tasks with scripting.

Skills

Linux administration

LDAP / Directory services

L2/L3 support

System hardening

Scripting (Bash/Python/Perl)

Tools

Ansible

Puppet

Chef

VMware ESXi/vSphere

KVM

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 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.

Benefits

• 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

Join Leidos Australia’s AGO GEO SPACES program and contribute to the delivery of advanced national security capabilities in a highly secure, mission-critical environment. As a Linux Administrator, you will play a key role in maintaining and enhancing the Linux infrastructure that supports essential operational outcomes, working alongside experienced engineers and technology specialists.

• Provide Level 2 and Level 3 support across enterprise Linux environments, ensuring the availability, performance and reliability of critical systems and services.
• Administer and maintain virtualised and physical infrastructure, including VMware, KVM, HP OneView and GreenLake platforms, while supporting ongoing system optimisation and lifecycle activities.
• Develop, automate and standardise system configurations using tools such as Ansible, Puppet and Chef, with a focus on operational efficiency, consistency and compliance.
• Support security and access management requirements through the administration of authentication services, implementation of security controls and automation of routine administration tasks using scripting technologies.

About You

You are a Linux systems professional who enjoys solving complex technical challenges and working within a secure, high-assurance environment. You bring experience across enterprise infrastructure technologies and are committed to maintaining stable, secure and well-managed platforms that enable critical business and operational outcomes.

Essential

• Experience administering enterprise Linux environments, including distributions such as RHEL, CentOS, Ubuntu and SUSE.
• Capability in managing user access, authentication and directory services, including LDAP-based solutions such as OpenLDAP.
• Experience with configuration management and automation tools including Ansible, Puppet or Chef.
• Knowledge of virtualisation technologies, including VMware ESXi/vSphere, KVM or similar platforms.
• Experience providing Level 2 and/or Level 3 support, with the ability to troubleshoot and resolve complex infrastructure issues.
• Experience implementing and maintaining security controls, system hardening practices and operational compliance requirements.
• Capability in scripting and automation using Bash, Python, Perl or similar technologies.

Advantageous

• Experience supporting large-scale, mission-critical or highly regulated environments.
• Familiarity with Kickstart or similar operating system deployment and Standard Operating Environment (SOE) management practices.
• Exposure to HP OneView, GreenLake or comparable enterprise infrastructure management platforms.

Due to the nature of this role, you must be an Australian Citizen and hold an active TSPV security clearance, with the ability to be successful for a DISA/OSA.

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

Ready to explore what’s possible?

If this sounds like a role where you can make an impact and continue to grow, we’d like to hear from you.

If you need any adjustments or support during the process, please let us know.

If you're looking for comfort, keep scrolling. 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. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

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.