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 Officer

Role Description:
We are seeking a motivated and detail‑oriented Defence Commercial Officer to join a high performing sustainment environment supporting critical capability outcomes. This role is ideal for a commercial or procurement professional who thrives in a fast‑paced, compliance‑focused setting and is looking to broaden their experience across procurement, financial administration, and contract management.

You will play a key role in ensuring smooth and uninterrupted delivery of goods and services by managing procurement transactions, coordinating supplier engagement, processing payments and supporting a wide range of commercial activities. This is an excellent opportunity for someone who enjoys meaningful work, values accuracy and accountability and is keen to contribute to an essential national program.

Key Responsibilities:

Procurement & Purchasing Support:
 - Undertake procurement transactions, including:
    - Purchase Order creation and administration within ERP systems
    - Goods receipting and invoice processing
    - Purchasing card transactions
 - Source and review supplier quotes to support value‑for‑money assessments
 - Prepare procurement artefacts such as Section 23 approvals and Endorsements to Proceed 
 - Develop Survey and Quote documentation in accordance with ASDEFCON‑aligned frameworks
 - Finalise approved procurement activities to ensure timely delivery

Contract & Commercial Administration:
 - Support in‑service support contract management and general contract administration
 - Monitor deliverables, contractor communication and contract record‑keeping
 - Assist with contract variations, extensions and compliance documentation

Financial & Budgeting Support:
 - Contribute to procurement plan updates and financial tracking activities
 - Provide support with budgeting, reconciliation and financial governance
 - Monitor and manage stale commitments, ensuring issues are identified early and escalated appropriately

Skills and Experience:
 - Relevant qualifications in Procurement, Commerce, Business, Contract Management, Finance (or a related discipline)
 - SAP ERP experience is essential (ideally gained within Defence or a similarly structured, compliance‑driven environment)
 - Demonstrated experience in Defence commercial and contract management 
 - Strong understanding of governance, documentation standards, ASDEFCON‑aligned procurement and Commonwealth procurement compliance
 - Excellent written communication, analytical capability and stakeholder engagement

Required Security Clearance Level: Baseline

Location: Cairns, QLD (Alternatively Darwin and Henderson WA)

Weekly Hours: 40 
 

Compensation Details:

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting:

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.