Description

In this position you will integrate hardware and software across lab and platform environments, configure network components, and manage troubleshooting and defect resolution across multiple layers. You will also support security accreditation, apply OS hardening, and produce technical documentation to keep engineering and leadership informed of progress and risks.

• Integrate hardware and software, building and validating RHEL/Windows images, servers, laptops, and network devices in lab and platform environments.
• Configure IP addressing, VLANs, routing, trunking, and validate performance/QoS across integrated systems.
• Conduct structured troubleshooting and defect management across physical, OS, application, and network layers, including log capture and root‑cause analysis.
• Apply OS hardening, create security artefacts (PPS matrices, diagrams, build guides, STIG‑style checklists) and support accreditation processes.
• Produce technical documentation and liaise with engineering, cybersecurity, vendors, and leadership to report progress, risks, and system readiness.
• Set up and test servers, laptops, and network devices; build and configure Linux (RHEL) and Windows images, services, drivers, and packages.
• Diagnose hardware and software issues using methodical fault‑isolation techniques and generate clear defect reports.
• Apply networking fundamentals such as IP/subnetting, VLANs, trunk/access ports, cabling standards, and basic routing/switching.
• Leverage lab‑based test & evaluation, OS security hardening (CIS/STIG), virtualization/containerisation (VMware, KVM, Docker/Podman), CI/CD pipelines, and scripting for automation (advantageous).
• Create and manage technical artefacts like network/solution diagrams (Visio/Draw.io) and maintain configuration items in Git for repeatable integration workflows.
• Maintain an active NV1 or higher security clearance and comply with ITAR requirements where applicable.
• Contribute to critical Defence projects that protect Australia’s future.

Requirements

We are looking for highly experienced professionals to join our LC4S team and support the Land C4 Program, which uses a multiple‑submission approach to deliver capability iteratively. The role will involve coordinated requirements definition and contracting for future Land C4 systems, ensuring continuous and holistic delivery.

The ideal candidate has hands‑on experience setting up servers, laptops and network devices, building RHEL and Windows images, and strong troubleshooting skills using structured fault‑isolation methods. A solid understanding of IP addressing, VLANs, routing and cabling standards is required, with additional experience in test & evaluation, security hardening, virtualization, CI/CD pipelines, and automation scripting considered advantageous. A current NV1 or higher security clearance (and possible ITAR compliance) is mandatory.

Benefits

Downer offers meaningful work on critical defence projects, extensive professional development programs, and attractive perks such as discounts through Perks@Downer. We support veterans with reservist leave, champion diversity and inclusion, and provide flexible, equitable work arrangements as a WORK180 endorsed employer.

• Access career mapping, accelerated learning programs, and Communities of Practice for professional growth.
• Enjoy discounts on healthcare, retail, vehicles and other perks via Perks@Downer.
• Receive up to 20 days of Reservist Leave and benefit from veteran support initiatives.

Training + Development

Interview process

Visa Sponsorship

Security clearance