Cyber Security Specialist

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 Certification Specialist in Melbourne to work on a Land project
.

What You'll Do

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

• Implement automated scanning technologies and deliver timely security assessments, including business case development and executive endorsement
• Review vendor security documentation to support certification and accreditation processes across Defence systems
• Develop consistent testing methodologies and validate security controls in design and Digital Twin environments
• Liaise with DCIAB to support ATO/ATO-C accreditation and maintain compliance with AISM, DSPF, and PSPF frameworks
• Conduct risk assessments, recommend mitigation strategies, and respond to security advisories to strengthen system security posture

What You'll Bring [Key skills and qualifications]

• Cybersecurity Compliance
  – Strong grasp of AISM, DSPF, PSPF, and risk management.
• Security Testing & Automation
  – Skilled in automated scans and control validation.
• Accreditation & Documentation
  – Experienced in ATO processes and reviewing security docs.
• Strategic Planning
  – Capable of business case development and stakeholder engagement.
• Threat Intelligence
  – Able to act on vendor advisories and improve system security.

Due to the nature of the work, you are required to currently hold and maintain a minimum
Negative Vetting 1
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.