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

This is an opportunity to play a key role in maintaining and evolving critical enterprise Windows infrastructure that underpins business operations and customer services. As a Senior Windows Engineer, you will work across modern on-premises and hybrid cloud environments, partnering with infrastructure, security, network, architecture, and application teams to deliver reliable, secure, and scalable technology services.

• Lead the administration, optimisation, and continuous improvement of enterprise Windows Server environments, ensuring high levels of availability, performance, resilience, and operational supportability.
• Contribute to the delivery of infrastructure modernisation, cloud adoption, automation, and technology refresh initiatives, helping to reduce operational complexity and improve service outcomes across the organisation.
• Drive security and compliance outcomes through system hardening, vulnerability remediation, patch management, identity and access controls, and the implementation of operational best practices.
• Provide senior technical expertise for complex incidents, root-cause analysis, and infrastructure challenges while mentoring engineers and sharing knowledge across multidisciplinary technology teams.

About You

You are an experienced infrastructure professional who enjoys solving complex technical challenges and improving the reliability, security, and efficiency of enterprise platforms. You bring a collaborative approach to working with a diverse range of stakeholders and are motivated by delivering practical technology outcomes in large-scale environments.

Essential

• Significant experience in Windows Server engineering, systems administration, or enterprise infrastructure operations.
• Advanced knowledge of Microsoft Windows Server, Active Directory Domain Services, Group Policy, DNS, DHCP, TCP/IP, and authentication services.
• Experience administering enterprise-scale Windows environments, including server lifecycle management, patching, certificates, permissions, and configuration management.
• Advanced capability in PowerShell automation and scripting, with experience improving operational efficiency through automation and repeatable processes.
• Experience with Windows security hardening, vulnerability remediation, access management, compliance controls, and operational risk management.
• Experience supporting high-availability environments, disaster recovery readiness, backup and recovery solutions, and performance monitoring.
• Ability to troubleshoot and resolve complex infrastructure, networking, application hosting, and operating system issues across multiple technology domains.
• Well-developed communication skills with the ability to collaborate effectively across infrastructure, cybersecurity, architecture, service management, and delivery teams.

Advantageous

• Experience supporting Windows workloads within hybrid and cloud-based environments.
• Knowledge of Microsoft Azure, including Azure Virtual Machines, networking, storage, identity services, Azure Monitor, and Log Analytics.
• Experience with Microsoft Entra ID and hybrid identity solutions.
• Familiarity with Infrastructure as Code and configuration management tools such as Terraform, ARM/Bicep, Ansible, or Azure Automation.
• Experience with Microsoft IIS, enterprise application hosting, SCCM/Microsoft Endpoint Configuration Manager, and modern observability platforms.
• Experience mentoring engineers and contributing to technical standards, documentation, and knowledge-sharing initiatives.

This role requires the successful applicant to hold 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:

• 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

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 Ben George, Talent Acquisition.

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.