Core Services Engineer (Windows Administrator)

About the role

Leidos Australia is seeking a Core Services Engineer to deliver mission‑critical Windows infrastructure for a national‑security program. The role is 100% onsite in Melbourne or Canberra and requires a TSPV clearance.

Key responsibilities

• Design, administer and support enterprise Windows Server platforms, Active Directory, Group Policy, DNS and DHCP across secure environments.
• Build, maintain and optimise virtualised infrastructure on VMware, ensuring availability, resilience and security.
• Implement automation, SOPs and infrastructure improvements to boost efficiency and stability.
• Collaborate with cyber security specialists, infrastructure engineers, software teams and customer stakeholders.

Required profile

• Australian citizen with current TSPV clearance (and possibly ITAR compliance).
• Experienced Windows Infrastructure Engineer comfortable with complex, mission‑critical environments.
• Strong problem‑solving skills, able to perform root‑cause analysis and produce technical documentation.

Required skills

• Windows Server administration in medium to large enterprises.
• Active Directory, Group Policy, DNS, DHCP and identity management.
• VMware vCenter virtualization, provisioning and lifecycle management.
• PowerShell scripting or similar automation tools.

What we offer

• Flexible work options such as Life Days, part‑time, job sharing and compressed hours.
• Wellbeing support including free Headspace, MeQuilibrium and dedicated wellness spaces.
• Access to over 120,000 on‑demand learning courses and professional development opportunities.
• Opportunity to work on nationally significant projects with clear career growth pathways.