Question
FULL_TIME
2-5

Commercial Officer L2

1/11/2026

The primary objective is to provide commercial expertise to manage the phase-out of the current In-Service Support Contracts and facilitate transitional activities into the new contract. This includes ensuring contractual obligations are met, risks are mitigated, and Defence standards are upheld throughout the process.

Working Hours

40 hours/week

Company Size

10,001+ employees

Language

English

Visa Sponsorship

No

About The Company
Amentum is a global leader in advanced engineering and innovative technology solutions, trusted by the United States and its allies to address their most significant and complex challenges in science, security and sustainability. Our people apply undaunted curiosity, relentless ambition and boundless imagination to challenge convention and drive progress. Our commitments are underpinned by the belief that safety, collaboration and well-being are integral to success. Headquartered in Chantilly, Virginia, we have approximately 50,000 employees in more than 70 countries across all 7 continents.
About the Role

Amentum is a leader in global engineering, project management and solutions integration, trusted to modernise the most critical missions anywhere in the world. Driven to create a safer, smarter, cleaner world, we innovate as a team of inventive doers passionate about making a difference. Underpinned by a strong culture of ethics, safety and inclusivity. Amentum is fiercely committed to operational excellence and successful execution.

Are you seeking a career that offers a healthy work-life balance, a friendly company culture, and engagement with a supportive community?

We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive and diverse team who always strive to do the right thing for our people, clients and communities.

People are our greatest asset, and we offer a competitive package to retain and attract the best talent.

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

Amentum is proud to be an Equal Opportunity Employer, please refer to our Enterprise Agreement and www.fairwork.gov.au for more information.

Role Title: Commercial Support Officer

Role Description: One of Defence's systems program offices is de-scoping and phasing out an existing In-Service Support Contract (ISSC) and is transitioning to a new contractual arrangement. This requires structured phase-out activities to ensure continuity of support, compliance with Defence procurement policies, and effective handover to the incoming contract. The primary objective is to provide commercial expertise to manage the phase-out of the current ISSCs and facilitate transitional activities into the new contract. This includes ensuring contractual obligations are met, risks are mitigated, and Defence standards are upheld throughout the process. 

As the Level 2 Commercial Support Officer you will assist the Level 3 Commercial Lead and provide support to the systems program office with ad-hoc commercial tasks as required by the Commercial Director, such as procurement documentation, purchase order management and invoice processing. 

Your position will require your expertise and support with the following:

Contract Phase-Out Activities: 
Review and confirm all obligations under the existing ISSC’s. 
Manage the phase-out plan and ensure alignment with Defence procurement guidelines. 
Manage all contract closure activities, including final invoices, deliverables, stocktaking, disposals and performance reporting. 
Ensure compliance with Commonwealth Procurement Rules (CPRs) and Defence Contracting Framework.
 

Transition Activities: 
Support the development of transitional arrangements into the new contract. 
Facilitate knowledge transfer between outgoing and incoming contractors. 
Assist in drafting and reviewing transitional documentation (e.g., novation agreements, schedules, stocktakes, and disposals). 
Identify and mitigate commercial risks during transition. 

Stakeholder Engagement:
Liaise with internal Defence stakeholders, contractors, and suppliers. 
Provide regular status updates and reporting to the Commercial Director and MVSPO-Director. 
Chair meetings, develop and distribute meeting minutes. 

Deliverables:
Development of Phase-Out Plans, Transition Plan and schedules. 
Develop a Closure Checklist 
Maintain and manage Risk Register for phase-out and transition. 
Transition support documentation (handover notes, contractual amendments). 
Procurement documentation 
Maintain and manage action registers 
 
Skills & Experience:
Demonstrated experience in Defence commercial activities and contract management. 
Proven track record in managing contract phase-out and transition processes. 
Strong understanding of Defence procurement policies, Commonwealth procurement rules, and contracting frameworks. 
Excellent stakeholder engagement and communication skills. 
Ability to work autonomously and deliver within tight time frames.
Flexibility to travel for work at least once a month for a week's duration.

Essential Requirements: 3 to 5 years' experience

Desirable Requirements: ASDEFCON suite knowledge

Required Security Clearance Level: NV1

Location: Cairns/Sydney/Canberra

Weekly Hours: 40

Key Skills
Contract ManagementStakeholder EngagementRisk ManagementProcurement DocumentationInvoice ProcessingKnowledge TransferCommunication SkillsDefence Procurement PoliciesCommonwealth Procurement RulesTransition PlanningPhase-Out ActivitiesFlexibilityAutonomyTeam CollaborationAttention to DetailTime Management
Categories
Government & Public SectorEngineeringLogisticsConsultingAdministrative
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