Amentum is continually expanding our opportunities working on prominent defence projects across air, land and sea supporting the critical capabilities that keep Australia secure. We have a growing presence in cyber, space and nuclear programs.

Tell me about this role:

Join the Commercial team within the Collaborative Autonomous Systems Program Office (CASPO), supporting the delivery of some of Defence's most innovative and strategically significant capability programs, including advanced autonomous platforms. Working within an integrated Defence environment, you will provide commercial and procurement support across the full acquisition lifecycle while partnering with military, APS and industry stakeholders to achieve key project outcomes. This is an exciting opportunity for a commercial professional who enjoys working in a collaborative, fast-paced environment where no two days are the same.

You'll play a key role in supporting procurement activities, contract management, stakeholder engagement and commercial governance while contributing to the successful delivery of critical Defence capabilities.

We’re offering uncapped training and development opportunities as well as other benefits including subsidised parking, flexible working and different leave arrangements including paid parental, study, reserve and volunteer leave.

What will I be doing day to day?

- Support procurement and commercial activities throughout the full contract lifecycle.
- Assist with procurement planning, tender activities, contract establishment and contract management.
- Prepare and review commercial documentation, reports, briefs, plans and correspondence.




- Provide commercial advice and support to project teams and stakeholders.
- Coordinate with legal, finance, procurement and other specialist areas to ensure compliance and effective risk management.
- Manage commercial enquiries and resolve contract-related issues.
- Build strong working relationships across project teams and key stakeholder groups.
- Contribute to procurement strategies, schedules and commercial planning activities.
- Assist with the development of business cases, approvals, risk assessments and supporting documentation.
- Support probity and conflict of interest processes throughout procurement activities.
- Contribute to the successful delivery of commercial outcomes across major Defence projects.

What sort of skills do I need?

- Experience in commercial management, contract management, procurement, or acquisition environments.
- Experience with ASDEFCON and Commonwealth contracting procurement frameworks essential.
- Experience working with Defence stakeholders including CASG, SPOs, Navy, Army, Defence Primes, or Defence industry organisations.
- Experience managing complex contracts and supplier relationships.
- Knowledge of Defence commercial and governance processes.
- Strong commercial acumen with the ability to assess and manage risk.




- Experience preparing commercial documentation, reports, submissions, and briefs.
- Current Australian Government Security Clearance (Baseline, NV1 or NV2).

What’s in it for me?

- Flexibility - We like our employees to have the flexibility they need to live the lives they choose. With flexible working options such as WFH where possible.
- Inclusion - Our employees should feel safe bringing their whole self to work, we offer a number of programs promoting inclusion.
- Benefits and Rewards – Our benefits and rewards includes additional superannuation; flexible leave options; salary continuation insurance; professional certification bonus; employee discount program.

Amentum: Trusted Partner in National Security

Amentum is a key service provider to the Australian Government, supporting critical national security and Defence capabilities across land, air, maritime, cyber, space, nuclear, and digital domains. With over 880 professionals nationwide, we deliver complex infrastructure, logistics, and technical solutions with a strong focus on quality, safety, and innovation.

With 27 years of experience and a presence in major cities and regions, we’re proud of our people—our greatest asset. Join us and be part of a high-performing team with exceptional benefits and career opportunities. Apply directly or reach out to Jeremy Parkinson, *@global.amentum.com.

Additional information

- Support procurement and contract activities across major Defence programs.
- Provide commercial advice and prepare key project documentation.
- Engage stakeholders to deliver compliant and effective outcomes.

📌 Commercial Officer | Defence Aerospace (Amberley)
🏢 Kinexus
📍 Amberley