IT Support Technician

Silentium Defence Pty; Australia; On-site; AUD 70,000 - 100,000; Full time

Job summary

The role covers end-to-end IT and AV support, equipment provisioning, helpdesk response, and cyber security governance. Candidates must hold an IT-related degree, be an Australian citizen eligible for NV1 clearance, and be comfortable working in a defence environment.

Qualifications

• Tertiary qualification in IT or related discipline.
• Australian citizenship with ability to obtain NV1 clearance.
• Experience managing Linux and Windows workstations.
• Experience applying cyber security best practices.
• Ability to obtain and maintain NV1 clearance and comply with ITAR.

Responsibilities

• Provide end-to-end IT and AV support to all staff.
• Prepare, provision, and maintain IT equipment, accounts, and access.
• Respond to helpdesk requests and escalate when needed.
• Develop user-friendly support materials (wikis and guides).
• Troubleshoot system and network issues across Windows, Linux, MacOS, and mobile devices.
• Ensure backups are performed and tested according to disaster recovery requirements.
• Administer licensing and configurations for Microsoft 365, Atlassian, and other key applications.
• Manage vendor relationships for IT and network hardware.
• Develop and maintain cyber security policies, controls, and risk mitigation systems.
• Report regularly to management on progress, system performance, and key metrics.

Skills

Linux & Windows administration

Cyber security

ITAR compliance

Education

Tertiary IT qualification (IT / CS)

Tools

Microsoft 365

Atlassian

Job description

Silentium Defence is a world leader in passive radar technology, delivering advanced capability into complex defence environments. We are seeking an IT Support Technician to join our team and help us to continue to ensure our systems are reliable, secure, and able to support the operational needs of a rapidly growing business.

This role is the central point of contact for all IT matters at Silentium Defence. You will manage day‑to‑day IT operations, provide exceptional support to staff and contractors, maintain and evolve our IT infrastructure, and strengthen our cyber security posture. This hands‑on, customer‑focused role requires strong technical capability, excellent communication skills, and the ability to prioritise effectively in a dynamic environment.

What you will do

• Provide end‑to‑end IT and AV support to all people at SD
• Prepare, provision, and maintain IT equipment, accounts, and access
• Respond promptly to helpdesk requests, resolving issues or escalating when required
• Develop user‑friendly support materials such as wikis and how‑to guides
• Troubleshoot system and network issues across Windows, Linux, MacOS, and mobile devices
• Ensure backups are performed and tested according to disaster recovery requirements
• Administer licensing and configurations for Microsoft 365, Atlassian, and other key applications
• Manage vendor relationships for IT and network hardware
• Develop and maintain cyber security policies, controls, and risk mitigation systemsEnsure compliance with DISP, NIST, and other relevant cyber security frameworks
• Report regularly to management on progress, system performance, and key metrics

What you bring

• Tertiary qualification in IT, computer science, or a related discipline
• Australian citizenship with the ability to obtain and maintain an NV1 security clearance
• Strong capability managing Linux and Windows workstations
• Demonstrated experience applying cyber security best practices
• Australian citizenship is mandatory
• Ability to obtain and maintain an NV1 security clearance
• Ability to comply with ITAR requirements

We Are Innovators, problem solvers, and leaders in our field, dedicated to making a real impact on a global

Silentium Defence is a rapidly growing, Australian‑born business working at the cutting edge of advanced technology capability.

Our world‑leading passive radar sensors empower defence, space, and commercial customers to see without being seen, enabling them to protect what matters most with unparalleled precision and reliability.

Why work with us

We’re doing hard things. Each and every one of us is empowered with responsibility and plays an integral role in the growth of our business. Here, hard work translates into real‑world impact, and every contribution counts.

But it’s not all work—our culture is built on celebrating achievements, supporting one another, and providing opportunities to explore everyone’s full potential.