
About Us
IAG Defence & National Security (DNS) is part of IAG, a specialist advisory firm supporting complex infrastructure, Defence and national security programs across Australia.
Our DNS team works closely with Commonwealth agencies and industry partners to deliver specialist expertise into nationally significant programs. Our success depends on our ability to identify, engage and mobilise highly specialised talent quickly and effectively. IAG is recognised as Veteran Friendly Employer under the Veteran Employment Program.
The Role
The System Manager is responsible for the ongoing management, sustainment and enhancement of the AusPEX application in support of CAF16 capability requirements.
Working within a complex Defence environment, the successful candidate will coordinate sustainment activities, manage system improvements, support capability delivery and maintain effective engagement with Defence stakeholders, engineering teams and contracted suppliers.
The role is based in the ACT, and encompasses system sustainment, project management, financial management, contract administration, risk management and governance activities to ensure the continued delivery and evolution of the capability.
About You
To be successful in this role, you will have demonstrated experience managing complex ICT, application or capability systems within a Defence or government environment, with the ability to coordinate multiple stakeholders, suppliers and technical teams to achieve capability outcomes.
You will possess strong project management, governance, risk management and stakeholder engagement skills, along with the ability to manage competing priorities and communicate effectively with both technical and non-technical audiences.
Candidates must demonstrate:
Highly regarded candidates will possess knowledge and experience in one or more of the following areas:
The following qualifications and training are highly desirable:
What we offer
With offices in Perth, Brisbane, Melbourne, Sydney, and Canberra, we’re a tight-knit team, working across some of Australia’s most critical infrastructure and Defence projects. We come from diverse backgrounds and pride ourselves on our flexible, supportive and collaborative team culture. We can offer great work, great people, great culture, great conditions, and an all-round great time, whilst you go about developing a great career in this space.
As part of IAG, you’ll be joining a team of more than 250 professionals’ working across a range of integrated workstreams in a friendly and approachable environment.

IAG Defence and National Security (DNS) is a multidisciplinary team of Project Management, ICT, Logistics, Engineering and Commercial advisory professionals who primarily provide services to the Defence Sector, Australian Department of Defence and Defence Industry.
Thanks to the diversity of its service offerings, IAG Defence & National Security is uniquely positioned to provide its partners and clients with holistic solutions that address complex cross-subject requirements.
IAG DNS is part of the wider IAG team - Australasia’s most trusted transaction, commercial, strategic advisory, delivery and technical services firm.
IAG has assisted clients to successfully plan, transact and deliver more than $200 billion of projects across Australia and internationally. This combined experience ensures our team of specialist advisors effectively navigate complex governance frameworks, challenging stakeholders, multifaceted technical environments and regulatory intricacies to deliver value for money outcomes.
We bring a flexible, scalable team with unmatched professional diversity – a national pool of approximately 250 advisors with diverse backgrounds in law, commerce, engineering, defence, construction, environmental management and stakeholder engagement.