Defence It Support Technician – Cybersecurity & Systems …, City of Salisbury

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 robust technical capability, excellent communication skills, and the ability to prioritise effectively in a energetic 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 systems

Ensure 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

Relevant qualification in cyber security

Robust capability managing Linux and Windows workstations

Demonstrated experience applying cyber security best practices

Eligibility

Australian citizenship is mandatory

Ability to obtain and maintain an NV1 security clearance

Ability to comply with ITAR requirements

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