Linux Systems Administrator

Leidos Australia; Canberra; On-site; AUD 100,000 - 120,000; Full time

Job summary

A national security solutions provider based in Canberra is seeking skilled Linux Administrators for their GEOSPACES program. This critical role involves managing Linux server environments and providing high-level support for complex issues. The successful candidate will have strong expertise in enterprise Linux distributions, user authentication services, and configuration tools like Ansible and Puppet. Applicants must also be Australian Citizens with an active TSPV security clearance. Join a diverse and inclusive team committed to building a secure future.

Qualifications

• Extensive experience with enterprise-grade Linux distributions.
• Strong capability in managing user access and authentication services.
• Hands-on experience with configuration and deployment tools.
• Skilled in virtualisation technologies.
• Proven incident management experience in enterprise environments.

Responsibilities

• Provide Level 2/3 support for complex Linux issues.
• Manage virtualised environments and physical systems.
• Develop system configurations and manage SOE lifecycle.
• Administer accounts, permissions, and security compliance.
• Implement security controls and automate tasks.

Skills

Enterprise-grade Linux distributions (RHEL, CentOS, Ubuntu, SUSE)

User access and authentication services (OpenLDAP)

Configuration and deployment tools (Ansible, Puppet, Chef)

Virtualisation technologies (VMware, ESXi, KVM)

Level 2/3 incident management

Tools

Ansible

Puppet

Chef

VMware ESXi

KVM

Job description

Overview

Leidos Australia is seeking multiple skilled Linux Administrators to join our GEOSPACES program, delivering advanced national security technology solutions in a secure, high-compliance environment.

These key technical roles are responsible for the administration, maintenance, and support of the organisation’s Linux server environment and associated infrastructure, ensuring the stability, integrity, and efficient operation of mission-critical systems that underpin core business and operational outcomes.

Responsibilities

• Provide Level 2/3 support for complex Linux issues, ensuring minimal business disruption.
• Manage virtualised environments (VMware/KVM) and physical systems such as HP OneView and GreenLake.
• Develop system configurations using Ansible, Puppet or Chef, and manage the SOE lifecycle with Kickstart.
• Administer accounts, permissions and authentication services (LDAP and similar), maintaining security compliance.
• Implement required security controls, including firewalls and mandatory access controls, and automate tasks using Bash, Python or Perl.

What You’ll Bring To Make An Impact

• Extensive experience with enterprise-grade Linux distributions such as RHEL, CentOS, Ubuntu and SUSE.
• Strong capability in managing user access and authentication services, including OpenLDAP and similar systems.
• Hands-on experience with configuration and deployment tools including Ansible, Puppet and Chef.
• Skilled in virtualisation technologies such as VMware ESXi/vSphere and KVM.
• Proven Level 2/3 incident management experience, resolving complex issues in enterprise environments.

Don’t worry if you don’t tick all the boxes – if you meet most of them, we encourage you to submit your application. We’re most interested in your strengths, what you want to learn and how far you want to go.

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.

Diversity, Inclusion and Next Steps

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. Our five Advocacy Groups provide opportunities to connect and collaborate on shared interests and support our diverse community.

Next Steps

• To apply for this role, follow the links or apply via our Careers page.
• Recruitment process – 2 interviews, background checks & DISA/OSA.
• Applicants may also need to meet International Traffic in Arms Regulations (ITAR) requirements. In some cases this may limit eligibility for dual nationals or certain residency statuses.
• We are committed to making our recruitment process accessible. Please contact our Careers team if you need additional support during your application.

Leidos reserves the right to modify or discontinue roles at any time. For security and compliance information, please review our non-discrimination and data-security statements in the official job posting.

Note: This description focuses on the responsibilities and qualifications for the Linux Administrator role within the GEOSPACES program and does not include extraneous marketing content beyond what is necessary for candidate consideration.