Cyber Security Architect

Overview

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.

As the Cyber Security Architect, you will lead the development and delivery of a unified cyber security architecture for complex Air Command and Control systems, ensuring alignment with Defence and Australian Government standards. The position is based onsite at Campbell Park, Canberra.

What You’ll Do

- Design and deliver cyber security architecture and documentation to support certification and accreditation of Air C2 systems.
- Coordinate with stakeholders across Defence, RAAF, CIOG, and certification authorities to ensure alignment and compliance.
- Implement and apply security frameworks including PSPF, ISM, DSPF, NIST SP-800, and ISO 27000 series.
- Provide technical leadership and guidance across ICT and cyber security domains.
- Manage stakeholder expectations and ensure consistent security processes across delivery teams.

What You’ll Bring

- Proven experience as a Security Architect in large-scale ICT projects with deep technical expertise.
- Strong knowledge of cyber security policies, standards, and frameworks.
- Advanced technical writing, interpersonal, and organisational skills.
- Ability to work independently and collaboratively with Defence and industry stakeholders.
- Familiarity with Defence cyber worthiness concepts and architecture frameworks like DODAF, TOGAF, SABSA, or UAF.

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 it 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.

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