Amentum is a leader in global engineering, project management and solutionsintegration, 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.

About the role:

We’re seeking a Senior Proposals Operations Manager to drive the creation of high‑impact, strategically aligned proposal plans that embody the Amentum playbook—elevating the bid team to peak readiness well ahead of client documentation release.

Leveraging your deep industry insight and strong external networks you will proactively identify and capture growth opportunities that advance Amentum’s strategic objectives.

You will report to the Growth and Strategy Group Director and partner closely with a supportive team of proposal specialists and business development managers to communicate compelling, customer focused solutions to our clients’ toughest problems.

Your Role and Responsibilities

In this role you lead the team seeking and delivering proposals for major Defence below‑the‑line service delivery opportunities in complex, highly technical environments. You will:

• Managing large Defence and National Security Tenders throughout the Proposal Development Lifecycle (Proposal Planning, Proposal Development/Delivery and Post Proposal Submission Activities).
• Manage Australian Government and Department of Defence ASDEFCON proposals on some of our largest, complex, high value and most strategically important opportunities.
• Lead the development of comprehensive proposal plans aligned to the Amentum playbook, ensuring the bid team is in a high state of readiness ahead of client documentation release and that roles, timelines and dependencies are clearly understood.
• Proactively identify and secure the engagement of subject matter experts (project management, technical & engineering, commercial, supply chain, pricing and other specialists), authors and reviewers.
• Chair structured kick‑off meetings to align all stakeholders to the capture strategy, proposal plan, bid schedule and their individual contribution.
• Direct and facilitate the creation and review of storyboards, ensuring they effectively guide authors to produce responses that fully answer client questions, align with agreed win themes and strategies, and maximise evaluation scoring potential.
• Oversee the end‑to‑end proposal document production process, monitoring progress against schedule, coaching authors to lift response quality, and ensuring that all outputs reflect a deep understanding of client evaluation criteria while represent a compelling, high‑quality submission for internal and client review.
• Lead and govern the review process, clearly defining expectations for each review stage, enabling reviewers to provide targeted, constructive feedback, ensuring that the incorporation of review comments measurably strengthens the overall proposal.

Qualifications and Experience

To thrive in this position, you will bring:

• Bachelor's degree in Business Administration, Marketing, Communications, or industry qualifications awarded by bodies such as the Association of Proposal Management Professionals.
• Experience working within an international company and with international customers (Desired)
• Experience with proposal planning, development, and post-submittal activities.
• Leadership DNA: Ability to motivate, coach, and lead dispersed teams
• Stakeholder engagement mastery: Exceptional communication and relationship-building skills
• Operational excellence mindset: Detail oriented, organised, and committed to delivering results
• Business acumen: Strong understanding of consulting, financials, and program management
• Australian citizenship and NV1 security clearance as a minimum

Flexible Working

This position offers the flexibility of remote working, with the expectation that most days will be spent in the Canberra office during critical proposal development periods to foster teamwork and timely communication.

Your Package

We offer a competitive salary package that is commensurate with experience and qualifications. Our compensation structure is designed to attract and retain top talent, with opportunities for growth and advancement.

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.