
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
Locations:
Canberra ACT, Brisbane QLD, Melbourne VIC and Adelaide SA (multiple positions available).
We are seeking multiple TSPV cleared Senior Software Engineers to support the delivering of secure, innovative and mission-critical software Defence capabilities.
Available across Canberra, Brisbane, Melbourne and Adelaide, these roles offer the opportunity to work within highly skilled technical teams responsible for designing, developing, testing, deploying and maintaining complex software solutions that support Australia's national security objectives.
As a Senior Software Engineer, you will provide technical leadership across the software development lifecycle, contributing to software design, development, release management, configuration management and continuous improvement activities. You will work collaboratively with stakeholders and subject matter experts to solve complex technical challenges, drive software engineering outcomes and mentor less experienced team members.
These positions are offered on an initial 12-month contract with extension options available and require onsite attendance in accordance with operational requirements.
About You
You are an experienced software engineering professional with a strong track record delivering complex software solutions within enterprise, government or national security environments.
You will demonstrate:
Candidates must hold a current TSPV security clearance and be willing to undergo an Organisation Suitability Assessment (OSA) prior to commencement.
Experience working within Defence, intelligence, cyber security or other highly secure environments will be highly regarded.
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.