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.

Our Team:
Air Combat Systems Program Office (ACSPO) is the acquisition and sustainment management organisation responsible for governing, supporting, and assuring the Australian F 35A Lightning II capability within the Aerospace Combat Systems Branch. It delivers asset management, project management, financial management, engineering services, and business management for the CAF30 (F-35A Lightning II Sustainment) Product and Project AIR06000 Phase 2A/B, Phase 2C, and Phase 6.

The organisation comprises an integrated workforce of around 100 ADF, APS, and above the line contractor personnel based primarily at RAAF Williamtown, supported by approximately 50 additional personnel, including JPO Cooperative Program Partner members, Reservists, embedded staff, and below the line contractors, located across Australia and the United States.

About the Role:
In this role, you will provide high quality Business Operations Support to the Australian Combat Systems Program Office (ACSPO) Team. You will play a central role in enabling effective governance, coordination, and day‑to‑day operations, ensuring activities are delivered efficiently, accurately, and in line with Defence requirements.

Working under limited direction in a fast‑paced and integrated environment, you will manage competing priorities, coordinate complex tasking, and support executive‑level forums, travel, events, and communications. Your contribution will directly support the operational effectiveness, organisational health, and governance outcomes of ACSPO.

This role suits someone who is highly organised, well-spoken, detail‑oriented, and proactive, with a positive mindset and the ability to work confidently with senior stakeholders across Defence.

This full-time position is based at Williamtown, near Newcastle. 

What’s Involved:

• Provide timely, efficient, and positive business operations support 
• Manage and coordinate internal and Branch tasking and communication, including inbox management, drafting correspondence, obtaining appropriate SPO approvals, and ensuring completion in line with task requirements and deadlines
• Support business meetings, workforce activities, and interviews through document preparation, Outlook scheduling, room setup, and attendee support
• Assist with the coordination and management of SPO travel requirements
• Manage scheduling, workforce coordination, and event planning for ACSPO, including coordination of official visits
• Manage and coordinate the inwards and outwards clearance process using Defence information systems
• Manage SPO office requirements, including stationery and equipment orders
• Collate data and coordinate executive‑level forums, including monthly internal governance boards
• Undertake data analysis and reporting on organisational health metrics
• Support the Quality Management function through coordination, co‑development, review, and maintenance of controlled documentation
• Where appropriate, support the Defence Business Management Unit (DBMU) in identifying and implementing process improvements across business management functions

Who we’re Looking For:

You are a highly organised and articulate professional who takes pride in enabling senior leaders and teams to operate effectively. You communicate clearly and professionally, manage inboxes and priorities with confidence, and are comfortable working across Defence systems, corporate tools, and governance frameworks. You thrive in structured environments where attention to detail, discretion, and reliability are critical.

You’ll Need:

• Experience in business operations, workforce support, administration, or executive support within Defence, government, or a similarly complex organisation
• Strong experience managing inboxes, schedules, and correspondence for senior stakeholders
• Well‑developed verbal and written communication skills, with a professional and confident manner
• Proficiency with Outlook, Microsoft Office, and document creation (briefs, minutes, reports, packs)
• Experience using Defence systems for tasking, travel, clearances, workforce or corporate reporting
• Knowledge of Power BI or dashboarding tools is advantageous
• Experience supporting meetings, events, travel coordination, and executive‑level forumsFamiliarity with governance processes, document control, and Quality Management Systems is desirable
• A proactive mindset with demonstrated interest in process improvement and operational efficiency
• NV1 security clearance or the ability to obtain one (Australian citizenship required)

Required Security Clearance Level: NV1 Preferred – pending experience will consider Baseline to obtain NV1
Location: RAAF Base Williamtown / Newcastle
Weekly Hours: 40 Hours (Monday-Friday) Onsite

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.