Senior Platform Engineer, Infrastructure Management

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.

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. This includes:

• 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, Infrastructure Management is responsible for the implementation, operation, maintenance, and continuous improvement of enterprise infrastructure platforms hosted across Microsoft Azure, Amazon Web Services, and private cloud VMware environments.

The role leads infrastructure lifecycle activities, including platform deployment, configuration, patching, upgrades, capacity planning, performance optimisation, vulnerability remediation, migration, and retirement. It works closely with storage, networking, application, database, cybersecurity, architecture, service-management, and vendor teams to deliver secure, reliable, scalable, and supportable platform services.

The role provides technical leadership across the infrastructure service lifecycle and coordinates the technology dependencies required to deliver complete application and business services.

• Implement, operate and continuously improve enterprise compute platforms across Microsoft Azure, Amazon Web Services and VMware private cloud environments, including virtual machines, operating systems, clusters, images, templates, availability configurations and associated platform services.
• Lead infrastructure lifecycle activities including patching, upgrades, maintenance, migrations, refreshes and retirement, developing practical plans that account for dependencies, testing, outage impacts, implementation activities, rollback arrangements and stakeholder communication.
• Coordinate infrastructure dependencies across storage, networking, applications, databases, backup, identity, monitoring and cybersecurity teams to deliver integrated, resilient services, including availability, capacity, performance, disaster recovery and business-continuity requirements.
• Develop automation and repeatable infrastructure deployment, configuration, patching, validation, compliance and reporting using technologies such as Terraform, Bicep, AWS CloudFormation, PowerShell, Python and Ansible, while identifying opportunities to improve resource utilisation and infrastructure costs.
• Provide technical leadership across complex incident resolution, root-cause analysis, security and vulnerability remediation, monitoring and observability, change management and vendor escalation, while maintaining accurate platform architecture, operational, recovery and support documentation.

About You

We are looking for someone who brings judgement, curiosity and a collaborative approach to work that matters.

• You have experience implementing and managing enterprise compute, virtualisation, private cloud or hybrid-cloud platforms, with demonstrated capability planning and delivering platform patching, upgrades, maintenance, migrations, refreshes and retirement activities.
• You bring practical experience across Microsoft Azure, Amazon Web Services and VMware technologies, including Azure compute, monitoring, governance, identity and backup services; AWS compute, systems management, monitoring, identity and availability services; and VMware vSphere, ESXi, vCenter Server and clustering.
• You understand the broader infrastructure ecosystem, including Microsoft Windows Server and Linux, enterprise storage, networking, application hosting, backup, identity, security and hybrid connectivity, and use a structured approach to diagnosing complex infrastructure and application-hosting issues.
• You have experience with automation and Infrastructure as Code technologies such as PowerShell, Python, Bash, Ansible, Terraform, Bicep or AWS CloudFormation, along with monitoring and observability platforms such as Azure Monitor, AWS CloudWatch, VMware Aria Operations, Splunk, Elastic, Grafana or Prometheus.
• You can lead complex infrastructure activities and work inclusively across multidisciplinary teams, bringing an understanding of platform hardening, privileged access, vulnerability management, service management, capacity and availability alongside clear communication, documentation, planning and prioritisation skills.

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

If this role interests you, we encourage you to apply. We value different experiences and are interested in the capability and potential you could bring.

Certain roles may be subject International Traffic in Arms Regulations (ITAR) requirements which may limit persons who hold dual nationality with certain proscribed countries from accessing material, or in the case of dual Australian-U.S citizens, may require the candidate to obtain a U.S. Persons Abroad authorisation from the U.S DDTC.

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:

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

We’ll let you know what to expect before each stage, including who you’ll meet and how to prepare. If you need any adjustments or support during the process, please let us know.

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. Please apply via the “Apply Now” button with your resume. If you have any questions about the role or recruitment process, please contact [email protected].

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.