Systems Engineer | Linux

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• Due to the nature of the role, you must be an Australian Citizen and hold an active NV-2 AGSVA security clearance.

Our team feel Leidos is a great place to work. Learn more about our culture and benefits by visiting us here https://www.leidos.com/company/global/australia/careers

Do Work That Matters

Leidos Australia delivers Technology and Airborne solutions that protect and advance the Australian way of life.  Our 2000 local experts, backed by our global experience and network of partners, are working to solve the world’s toughest challenges in government, intelligence, defence, aviation, border protection and health markets.

Your New Role and Responsibilities

The Air Component Command and Control Capability System (AC-C2CS) is a mission-critical suite of software applications that enables the Australian Defence Force (ADF) to effectively plan, prepare, execute, manage, and report on aviation operations.

This role is focused on keeping mission-critical, Linux-hosted application services highly available, secure, and performant. You’ll combine hands-on Linux administration with operational support for database-backed platforms (including Sybase), working within ITIL processes to deliver stable services, rapid incident resolution, and continuous improvement.

Key responsibilities include:

• Administer and maintain Linux server environments (RHEL/CentOS/Ubuntu) supporting mission-critical applications.
• Monitor and improve application and platform availability, performance, and capacity.
• Deliver deployments, upgrades, and patching across systems and applications, including change planning and validation.
• Troubleshoot complex application, OS, and database-related issues (including Sybase connectivity and performance).
• Operate within ITIL processes to manage incidents, problems (RCA), service requests, and accurate ITSM records.

What You’ll Bring to Make an Impact

• Strong hands-on Linux administration experience (Red Hat preferred); RHCSA/RHCE desirable.
• Experience supporting enterprise applications in production environments, including middleware/runtime stacks.
• Working knowledge of Sybase (or similar) database operational support (monitoring, backup/recovery, performance basics).
• Scripting capability (Bash and/or Python) plus familiarity with monitoring and log analysis tools.
• Must hold or be eligible to obtain NV2 Security Clearance and be able to work in secure/regulated 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.

Diverse Team Members, Shared Values and a Common Purpose

Providing our customers with smarter solutions takes an incredible team with diversity of thought, experience and perspectives driving innovation. Inclusion is at the heart of our culture and is one of our core values. It’s about creating a workplace where everyone can do important work, feels welcome, valued, and respected, and has equal access to opportunities to thrive. Paul Chase – Chief Executive, Leidos Australia.

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 (Women and Allies Network, Young Professionals, Defence & Emergency Services, Action for Accessibility and Abilities and Pride+) provide an opportunity for team members to connect and collaborate on shared interests, and work to support and celebrate our diverse community.

Next Steps

• To apply for this role, follow the links or apply via our Careers page.
• Recruitment process - 1 virtual interview and/or 1 face-to-face & background checks.
• 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 get in touch with our Careers team careers.au@au.leidos.com if you’d like to discuss any additional support during your application or throughout the recruitment process. 

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.

Original Posting:

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.