System Administrator

Overview

System admin for maritime defense project handling Linux/Windows & SCIF support.

Key Responsibilities

• user support
• maintenance
• system updates
• on-call support
• project delivery

Tasks

Join our Downer Professional Services team and play a key role in delivering complex defence and national security projects that safeguard Australia’s future.

Requirements

• linux
• windows
• cybersecurity
• performance tuning
• system admin
• security clearance

What You Bring

Due to the nature of the work, you are required to currently hold and maintain a minimum Negative Vetting 2 or higher Security clearance as required by the Commonwealth. In some instances, compliance with International Traffic in Arms Regulations (ITAR) requirements may also be an inherent requirement. More than anything, you’ll bring a strong work ethic, a positive attitude, and a commitment to delivering high-quality outcomes for our clients.

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Benefits

As a WORK180 Endorsed Employer, we support flexibility that works for your life, inclusive leadership that values your voice, and equitable access to opportunity so you can do your best work and bring your whole self to it. -Professional development: Access career mapping, accelerated learning programs, and shared learning through our Communities of Practice. -Veteran support: Benefit from initiatives like up to 20 days of Reservist Leave to stay connected post-service. -Great perks: Enjoy discounts on healthcare, retail, vehicles, and more through Perks@Downer.

About Downer Professional Services

-As a separate specialist arm of the long‑established Downer Group, the firm draws on decades of experience delivering to the Defence sector. -Headquartered in Canberra with offices nationwide, it advises on and delivers strategic and technical projects for Defence, national security agencies, and government. -It spans cyber‑security, systems and workforce planning, strategic procurement, business case development, and engineering asset management. -Recent projects include runway works at RAAF bases Williamtown, Edinburgh, and Richmond, supporting the full defence-capability lifecycle. -As one of the few integrated providers in its field, it blends advisory, program, and estate delivery under one roof, preserving project continuity.

Sector Specialisms

Security Clearance

-must hold and maintain minimum negative vetting 2 (nv2) security clearance; may need itar compliance.