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Downer

Cyber Security Engineer

Information & Communication Technology

Posted 28/05/2026
Closes 11/06/2026

Canberra Airport, 2609, Canberra, Australian Capital Territory

Full time

Not specified

Description

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

Downer Professional Services is comprised of two business units, our Technical, Advisory, and Capability consulting practice and Team Downer, a major service partner to Defence. Together, we are a multi-disciplinary advisory and delivery partner of choice for our clients in Defence and National Security.

We currently have an opportunity for a Cybersecurity Engineer in Canberra to work on Defence Joint CJC03 projects.

What You’ll Do

This role offers a broad scope, with key role responsibilities including:

  • Design, implement and maintain ICT systems and security controls aligned to Defence frameworks including ISM, Essential 8 and NIST standards
  • Support secure system administration, configuration and change management across enterprise environments
  • Collaborate with stakeholders to deliver secure, resilient and compliant solutions across CJC03 program requirements
  • Monitor, assess and respond to system vulnerabilities, threats and compliance gaps across network and cloud environments
  • Contribute to continuous improvement of cyber security posture, including documentation, risk assessments and accreditation activities

What You’ll Bring

  • Bachelor’s degree in Computer Science, Systems Engineering, Information Technology, or related discipline (or equivalent experience)
  • Industry certifications such as CISSP, CISM, or CISA (or working towards) highly regarded
  • Strong understanding of ISM, Essential 8 and NIST SP 800-55 frameworks
  • Experience across ICT system administration, networking, security controls implementation and change management
  • Familiarity with operating systems (Windows Server, Linux, macOS), virtualisation (VMware/Hyper-V), cloud platforms (AWS/Azure/GCP) and security tooling (firewalls, IDS, endpoint protection)
  • Experience within Defence environment, in particular CASG, will be highly regarded

Due to the nature of the work, the successful applicant must hold and maintain an AGSVA Security Clearance, as required by the Commonwealth. In some cases, compliance with International Traffic in Arms Regulations (ITAR) may also be required.

Why Downer Professional Services

At Downer Professional Services, we’re not just a workplace - we’re a business dedicated to contributing to the shaping of the future of defence in Australia. As the country’s only sovereign prime, we’re committed to making a real difference in protecting Australia’s interests. 

What is means to belong at Downer Professional Services 

  • Meaningful work: Help to deliver critical Defence projects that protect Australia and shape its future.
  • Professional development: Access career mapping, accelerated learning programs, and shared learning through our Communities of Practice.
  • Great perks: Enjoy discounts on healthcare, retail, vehicles, and more through Perks@Downer.
  • Veteran support: Benefit from initiatives like up to 20 days of Reservist Leave to stay connected post-service.

You want your work to matter and so do we.  With over 26,000 people across Australia, New Zealand and the Pacific, our team is made up of individuals with unique perspectives, backgrounds, and ideas.

We know that diversity makes us stronger and we actively celebrate it through our commitment to inclusion and belonging.

We’re committed to building a team that reflects the diverse communities we serve and we welcome people of all ages, genders, sexual orientations, cultures, abilities, and lived experiences. We especially encourage applications from those whose voices have traditionally been underrepresented in our industry, including women, Aboriginal and Torres Strait Islander Peoples, Māori and Pasifika Peoples, veterans, people with disability, and neurodivergent individuals.  Even if your experience doesn’t align perfectly with this role, we’d still like to hear from you. If it feels like the right fit, apply - potential counts, and so do you.

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.

If you need support or adjustments through the recruitment process, just let us know, we’re here to help you put your best foot forward.

Applications open to:

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Tags

Cyber Security EngineerCanberraAustralian Capital TerritoryFull timeDownerInformation & Communication Technology