Systems Administrator – Hybrid Cloud & Security

Leidos LLC; North Canberra; On-site; AUD 110,000 - 140,000; Full time

Benefits offered by this job

Life Days and flexible work options

Headspace and MeQuilibrium access

Access to 120,000 on-demand courses

Development and growth opportunities

Job summary

Leidos Australia is seeking a Systems Administrator to design, implement and support enterprise infrastructure across Windows, Unix and Linux, including on-premises, cloud and hybrid environments. You will build, test and deploy infrastructure components, ensure secure operations, and collaborate with project managers, architects and cybersecurity teams to deliver resilient solutions.

The role emphasizes automation, standardisation and continuous improvement, with opportunities to contribute to

Qualifications

• Experience in systems administration, infrastructure engineering or a similar technical role supporting enterprise environments.
• Knowledge of Windows, Unix and Linux operating systems, including server provisioning, configuration, patching, upgrades and lifecycle management.
• Understanding of core infrastructure services including Active Directory, DNS, DHCP, networking, storage, authentication, monitoring, backup and performance management.
• Experience with virtualisation technologies such as VMware and/or Microsoft Hyper-V, along with infrastructure troubleshooting and performance optimisation.
• Knowledge of infrastructure security, system hardening, vulnerability remediation, patch management and compliance requirements.
• Ability to develop technical documentation, support project delivery activities and work effectively with a range of technical and business stakeholders.

Responsibilities

• Build, configure, test and deploy infrastructure solutions across Windows, Unix, Linux, virtualised and cloud platforms, ensuring alignment with project requirements and operational standards.
• Support major technology initiatives including infrastructure migrations, upgrades, cloud adoption, technology refresh programs and platform modernisation projects.
• Collaborate with project managers, architects, cybersecurity specialists, vendors and operational teams to deliver secure, resilient and supportable solutions from implementation through to production handover.
• Contribute to continuous improvement through automation, infrastructure standardisation and operational best practices that enhance efficiency, reduce risk and improve service reliability.

Skills

Systems administration

Enterprise infrastructure

Security hardening

Technical documentation

Stakeholder collaboration

Education

Tertiary degree in Information Technology, Computer Science, Engineering or related discipline

Tools

Active Directory

DNS/DHCP

VMware

Hyper-V

Automation scripting (PowerShell, Python)

Job description

Leidos Australia is seeking a Systems Administrator to design, implement and support enterprise infrastructure across Windows, Unix and Linux, including on-premises, cloud and hybrid environments. You will build, test and deploy infrastructure components, ensure secure operations, and collaborate with project managers, architects and cybersecurity teams to deliver resilient solutions.

The role emphasizes automation, standardisation and continuous improvement, with opportunities to contribute to