Senior Platform Engineer, Operating System SME

Leidos Australia; Melbourne; On-site; AUD 150,000 - 190,000; Full time

Benefits offered by this job

Flex Your Way

Headspace & MeQuilibrium

Learning & Development

Impactful projects

Career Growth

Wellbeing spaces and facilities

Job summary

Leidos Australia is seeking a Senior Platform Engineer to lead the design, build and sustainment of enterprise Windows Server and Red Hat environments across on‑premises and cloud. You’ll partner with security, infrastructure and applications teams to deliver secure, scalable operating systems.

You will own lifecycle planning, patching, automation and governance, driving efficiency with tools like PowerShell, Bash, Python and Ansible, while mentoring engineers and shaping SOE standards.

Qualifications

• Experience implementing, maintaining and supporting enterprise Windows Server and Red Hat Enterprise Linux environments.
• Windows Server capabilities: Group Policy, Active Directory integration, PowerShell, patching, security baselines, event logging and performance monitoring.
• OS security hardening, vulnerability remediation, privileged access, identity management and secure configuration.
• Automation of OS management using PowerShell, Bash, Python, Ansible, Red Hat Satellite or Azure Automation.
• Ability to lead complex OS engineering activities with cross‑functional teams and produce clear documentation.

Responsibilities

• Lead the development, testing, implementation and maintenance of OS environments across Windows Server and RHEL.
• Coordinate patching, hardening, and lifecycle planning with cybersecurity and platform teams.
• Collaborate with infrastructure, applications, databases and networking to meet service requirements.
• Drive automation for provisioning, configuration, validation and reporting using PowerShell, Bash, Python, Ansible, and Satellite.
• Provide technical leadership during incidents, root‑cause analysis and capacity management.

Skills

Windows & RHEL OS

PowerShell

Ansible

Bash/Python scripting

Security hardening

Cross‑functional collaboration

Tools

PowerShell

Bash

Python

Ansible

Red Hat Satellite

Azure Automation

Job description

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 Civil Digital Modernisation business delivers IT services to Australian Federal and State Government departments and agencies to accelerate digital modernisation and ensure secure, resilient, and adaptive environments that meet evolving regulatory, compliance, and business needs. Our approach integrates advancing data, AI, cloud, and automation delivering agility, security, efficiency, and innovation at scale.

The Opportunity

The Senior Platform Engineer, Operating System SME is responsible for the implementation, sustainment, and continuous improvement of enterprise Windows Server and Red Hat Enterprise Linux Standard Operating Environments.

The role works closely with Windows and Unix engineering teams to develop, test, deploy, maintain, and govern secure and supportable operating system builds. This includes operating system lifecycle planning, patching, security hardening, configuration management, automation, vulnerability remediation, monitoring, upgrades, and end-of-support management.

The role collaborates with infrastructure, application, database, cybersecurity, architecture, and service‑management SMEs to ensure operating system services support the end-to-end technical and business requirements of the customer.

• Lead the development, testing, implementation and maintenance of Standard Operating Environments for Microsoft Windows Server and Red Hat Enterprise Linux, including approved images, templates, configuration baselines, build procedures and lifecycle plans across physical, virtualised, private cloud, public cloud and hybrid environments.
• Maintain secure and supportable operating system platforms through security hardening, configuration management, patch assessment and deployment, vulnerability remediation, upgrades and end-of-support planning, working collaboratively with cybersecurity and platform teams to manage technical and operational risk.
• Coordinate with infrastructure, application, database, storage, network, backup, identity and monitoring specialists to ensure operating system builds meet compatibility, performance, security, recovery and end-to-end service requirements.
• Improve consistency and efficiency through automation of operating system provisioning, configuration, validation, patching, compliance checking, health checks and reporting, using technologies such as PowerShell, Bash, Python, Ansible, Red Hat Satellite and equivalent configuration and automation tools.
• Provide technical leadership for complex Windows and Red Hat incidents, root‑cause analysis, monitoring, performance and capacity management, backup and recovery, resilience, change activities and vendor escalations, while maintaining accurate SOE designs, configuration standards, lifecycle plans, support guides and operational documentation.

About You

• You have experience implementing, maintaining and supporting enterprise Microsoft Windows Server and Red Hat Enterprise Linux environments, including developing, testing, deploying and governing Standard Operating Environments and managing their upgrade, maintenance and end-of-support lifecycle.
• You bring practical Windows Server capability across areas such as Group Policy, Active Directory integration, PowerShell, patching, security baselines, event logging and performance monitoring, alongside Red Hat Enterprise Linux experience including package and repository management, systemd, SELinux, identity integration, shell scripting, patching and logging.
• You understand operating system security hardening, vulnerability remediation, privileged access, identity and access management and secure configuration, together with the relationships between operating systems and compute, storage, networking, backup, virtualisation, applications, databases, monitoring and security services.
• You have experience automating operating system management using tools such as PowerShell, Bash, Python, Ansible, Red Hat Satellite or Azure Automation, and supporting Windows or Red Hat workloads hosted on VMware, Microsoft Azure, Amazon Web Services, private cloud or comparable enterprise platforms.
• You can lead complex operating system engineering activities while working inclusively with Windows, Unix, infrastructure, application, database, cybersecurity, architecture, vendor and service‑management teams, bringing structured troubleshooting, clear communication, strong documentation and thoughtful planning and prioritisation.

This role requires the successful applicant to be an Australian citizen, hold and be able to maintain a NV‑1 security clearance.

What to Expect When You Apply

Our hiring process is designed to be straightforward, respectful and easy to navigate. If your skills, experience and qualifications look aligned with the role, our Talent Acquisition team will contact you to discuss the next stage. You can expect:

Qualifications

• An initial conversation with our Talent Acquisition team
• An interview with the hiring manager or interview panel

Ready to explore what’s possible?

If you have any questions about the role or recruitment process, please contact [e-mail].

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.

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.