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:
Amentum is seeking a suitably qualified and experienced Defence Commercial Officer to support its client's commercial team in delivering high quality commercial, procurement and contracting services. The role operates within a technically complex maritime sustainment environment, supporting the delivery, optimisation and through-life management of unique specialised maritime capabilities.
This position requires a strong commercial acumen, deep familiarity with Defence ASDEFCON frameworks and the ability to support engineering, sustainment and logistics stakeholders; to enable effective commercial outcomes across a diverse portfolio of systems.
Roles and Responsibilities:
- Provide commercial and procurement advise and support to executive and program stakeholders within complex maritime environments
- Support the development of strategic commercial, contract and procurement documentation, including plans, briefings, strategies and commercial timelines
- Assist with tender developments, approval artefacts, evaluation activities and contract formations, using the Defence ASDEFCON frameworks
- Contribute to contract administration, including performance monitoring, contract changes risk management and compliance activities
- Maintain contract management plans, commercial registers and supporting governance tools
- Assist in delivering commercial and contract process training to Defence personnel and enhancing commercial capabilities within the organisation
Essential Requirements:
- Bachelor’s degree in Law, Commerce, Business, Finance, Supply Chain Management or a related discipline
- Demonstrated experience using Defence ASDEFCON frameworks and Commonwealth procurement processes
- Demonstrated experience in Defence maritime projects or commercial contract management roles
- Strong analytical skills, attention to detail, commercial acumen and the ability to navigate complex technical environments
- Hold an active Negative Vetting One (NV1) security clearance
Security Clearance: Negative Vetting One (NV1)
Location: Cairns, Canberra, Sydney, Darwin or Henderson (WA)
Weekly Hours: 40 hours
Compensation Details:
AUD
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:
02/18/2026 - Until FilledAmentum 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.
| Requirements Management and System Engineer | Oak Ridge, Tennessee, United States |
| Commercial Support Officer | Canberra, Australian Capital Territory, Australia. Sydney, New South Wales, Australia. Cairns, Queensland, Australia. Perth, Western Australia, Australia |
| Maintenance Trades Helper I | Jacksonville, Florida, United States |
| Fire Sprinkler Technician | Alice Springs, Northern Territory, Australia |
| Electrician, Low Voltage | Jacksonville, Florida, United States |
| HRAC Mechanic | Las Vegas, Nevada, United States |
If you are an applicant with a disability that requires a reasonable accommodation to complete any part of the application process, or are limited in the ability—or unable to use—the online application system and need an alternative method for applying, you may contact our Reasonable Accommodation Helpline at 1-888-877-3181 or 301-944-3299 for assistance. In order to address your request, the following information is needed:
Amentum uses cookies on our career site to continuously improve our site’s performance. Click here to view our Privacy Policy.