Defence Network Specialist — Security-Cleared (Canberra)

Downer; Canberra; On-site; AUD 90,000 - 130,000; Full time

Job summary

Downer Professional Services in Canberra is seeking a Network Specialist to design and implement a secure ICT system for Defence projects. You will deliver artefacts and documentation that support accreditation, risk management, and secure operations within the Defence environment.

The role requires hands-on experience with A&A processes, RHEL, and network security, with a proactive, collaborative mindset and the ability to liaise with Defence stakeholders to ensure robust, compliant solutions.

Qualifications

• Experience delivering A&A artefacts for ICT systems in Defence.
• Experience with RHEL and network engineering, including firewall configuration.
• Familiarity with Defence network architecture is desirable.

Responsibilities

• Develop A&A artefacts per JCG Defence Cyber Security Assessment and Authorisation Framework.
• Develop artefacts to support Digital Demand Request (DDR) assessment by Defence Digital Group (DDG).
• Liaise with external interface (USN EDT, DTCN) system owners to define EDT interfaces.
• Conduct compliance assessment against the Australian Information Security Manual (ISM) and develop technical documentation.

Skills

Assessment and Authorisation (A&A) for

Red Hat Enterprise Linux (RHEL)

Networking design

Firewall configuration

Defence network architecture knowledge

Job description

Downer Professional Services in Canberra is seeking a Network Specialist to design and implement a secure ICT system for Defence projects. You will deliver artefacts and documentation that support accreditation, risk management, and secure operations within the Defence environment.

The role requires hands-on experience with A&A processes, RHEL, and network security, with a proactive, collaborative mindset and the ability to liaise with Defence stakeholders to ensure robust, compliant solutions.