IRAP Assessor

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.

Opportunity to join the Directorate of Cyber Security Assessments and Authorisation (CSAA) as a DCIAB Embedded Assessor, where you'll conduct independent ICT security assessments of Defence systems classified SECRET and below for a Maritime project based in Canberra.

What You'll Do

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

• Perform security assessments of Defence ICT systems, identifying vulnerabilities and evaluating control effectiveness
• Produce Security Assessment Reports and Authorisation Briefs in accordance with CSAA and DCIAB standards
• Provide expert advice on ICT security risks, threats, and mitigation strategies across systems such as radar, satellite, and aircraft networks
• Attend stakeholder meetings and contribute to Directorate reporting and briefings
• Support the CSAA Authorisation process through ongoing engagement, edits, and governance compliance

What You'll Bring

• Demonstrated experience as an IRAP Assessor conducting Defence ICT security assessments and risk management
• In-depth knowledge of PSPF, ISM, DSPF, and the CSAA A&A Framework
• Relevant certifications such as CISSP, CISM, ISO 27001 Lead Auditor, or IRAP Assessor endorsement
• Strong analytical and reporting skills with the ability to deliver clear, actionable security recommendations
• Independence and integrity, with no prior involvement in system design or documentation, and willingness to complete Conflict of Interest checks

Due to the nature of the work, you are required to currently hold and maintain a minimum
Negative Vetting 2
or higher Security clearance as required by the Commonwealth. In some instances, compliance with
International Traffic in Arms Regulations (ITAR)
requirements may also be an inherent requirement.

More than anything, you'll bring a strong work ethic, a positive attitude, and a commitment to delivering high-quality outcomes for our clients.

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 .
• 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.