Cyber & Network Security Professionals

At Downer Professional Services (DPS) , we are committed to delivering outcomes that put Australia’s interests first . We work on complex and impactful Defence, government, and infrastructure projects that shape the future of our nation. Our people are at the core of our success, bringing expertise, innovation, and leadership to critical Defence programs.
Our Technical, Advisory, and Capability (TAC) practice and Team Downer (which serves as one of the prime Major Service Providers (MSP)) deliver above-the-line consulting services and Integrated Work Packages across the Department of Defence, leveraging innovative approaches such as mission and digital engineering to enable the successful delivery of critical Defence programs.
This includes engagement with key areas across Defence including Defence Digital Group (DDG), Capability Acquisition and Sustainment Group (CASG), and the Navy, Army, and Air Force.
To support these consulting services and Integrated Work Packages we are continually seeking skilled Cyber & Network Security professionals to join our team.
If you’re driven to make a meaningful impact and interested in future opportunities, we’d love to hear from you. Joining our talent community ensures you’ll be considered for permanent consulting roles with Downer Professional Services, supporting Defence and National Security projects across all service lines.
Whether you specialise in network architecture, infrastructure security, tactical data link operations, or cyber assurance, we want to hear from you.
If successful in securing a role, your work may involve:

• Designing, securing, and maintaining Defence network and communications systems
• Providing cyber assurance, system certification, and compliance against security frameworks
• Supporting tactical data link integration and interoperability across Defence platforms
• Implementing network solutions across strategic and tactical environments
Enhancing infrastructure resilience and mitigating cyber threats in critical systems

Our work is highly complex and confidential , applicants must be Australian citizens with a minimum NV2 security clearance. Additionally, compliance with International Traffic in Arms Regulations (ITAR) requirements may be necessary. In some cases, this may impose restrictions individuals who are dual citizens, permanent residency, or former nationality of specific countries as outlined in ITAR 126.1

We are seeking candidates with defence industry experience in the follow areas:

• Strong experience in Cyber & Network Security within Defence, government, or professional services.
• Relevant qualifications or certifications (e.g., CCNA/CCNP, CISSP, CompTIA Security+, Juniper, TOGAF, etc.)
• Experience with network design, cybersecurity frameworks
• Understanding of secure systems architecture, security accreditation, and risk assessment
Familiarity with tactical communications, SatCom, or secure data environments is highly regarded

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 join 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.

• Be first in line for future opportunities – By joining our talent network, you’ll receive priority consideration for upcoming roles that align with your skills and career goals, ensuring you stay ahead of the curve.
• Work on projects that matter – You’ll have the chance to contribute to career-defining projects that support Australia’s sovereign capability and national security, delivering real impact in Defence, government, and infrastructure.
• Invest in your growth – We believe in continuous learning. Whether it’s through structured career mapping, mentoring, training programs, or our Summer and Winter Schools for accelerated learning, we provide the resources to help you advance in your career.
• Collaborate with Industry experts – You’ll work alongside highly skilled professionals and leaders in a supportive and collaborative environment, where knowledge-sharing and professional development are at the core of what we do.
• Enjoy a range of perks & benefits – As part of Perks@Downer, you’ll have access to discounted healthcare, savings on retail and car purchases, and exclusive industry benefits to support your lifestyle.
• Strong veteran support & Inclusion Initiatives – We actively support Defence veterans with policies including up to 20 days of Reservist Leave to help you transition while staying connected to service.
  

Let’s connect

If you’re interested in future opportunities with Downer Professional Services, register your Interest today. Simply apply now, and we’ll be in touch as relevant roles become available.

Downer Group is an equal opportunity employer committed to diversity and inclusion. We encourage applications from all backgrounds, including First Nations people and those from culturally and linguistically diverse communities.

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.