Purpose and Impact:
Amentum is seekingaProposal ManagerIIIto serve as core members of the Proposals team. This role provides proposal development support across Amentum programs within a dynamic and complex environment, leading the development and submission of clear,compliantand compelling proposal solutions and execution packages.
The Proposal Manageris responsible forintegrating with key stakeholders to deliver effective,efficientandtimelyproposals, often under tight deadlines.
Work Schedule:
Day shift – 5 days per week, 8 hours per day
Essential Responsibilities:
Manage the end-to-end proposal development and submission process, including interpretation of RFPs, coordination of RFIs, development of solution strategies, SOW preparation, bid analysis, strategic planning, and execution package development.
AnalyseRFP requirements and develop proposal strategies that align with customer expectations andorganisationalbusinessobjectives
Facilitate the development, coordination, and review of proposal deliverables.
Mentor and support Proposal Manager team members in workload management and professional development.
Ensure all proposal documentation ismaintainedin accordance withestablished document control processes and procedures.
Support proposalreporting activities for stakeholders and management asrequired
Liaise with stakeholders to support proposal interpretation, compliance, and clarification activities.
Collaborate with colleagues to drive proposal development initiatives and support continuous improvement outcomes.
Monitor proposal schedules, milestones, and commitments with internal and external stakeholders.
Maintainaccurateand up-to-date proposal records and documentation.
Promote andmaintainworkplace health, safety, and compliance practices.
Perform other duties asrequired
Work Environment, Physical Demands, and Mental Demands:
The position is desk based and sedentary in nature, the ability to lift items up to 5kgs may berequiredoccasionally andparticipatingin Site walks occasionally
Experienceand Skills
Experience may substitute for education where applicable
Proposal Manager III (5–10 Years):
Undergraduate qualification in Business, Management, Project Management, or related fieldrequired
Five (5) to ten (10) years of progressive experience in proposal development and project management.
Demonstrated proposal and project management process knowledge.
Proficiencyin proposal document preparation using Microsoft Office and Adobe suites.
Document management experience. SharePoint and MS Project experience preferred.
Security Clearance Required:
Active U.S. Secret or TS/SCI Clearance; or equivalent Australian NV1 or Top-Secret Positive Vetting (TSPV) Department of Defense Security Clearance and ability tomaintainthat clearance or obtain higher clearance
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STATEMENT OF WORK REQUIREMENTS
At least 18 years of age.
Able to fluently read, write and speak English
Australian orUS citizen
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This position isdesignatedas a safety sensitive position.
As part of our commitment tomaintaininga safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel tocomply withcompany drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre-hire screening for marijuana, as well as other federally controlled substances due to Amentum’s role as a federal contractor and trusted partner to the US Government.
Other Responsibilities:
Safety- Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing andmaintaininga safe work environment. Asappropriate, each employeeis responsible forcompleting all training requirements and fulfilling all self-aid/buddyaid responsibilities,participatingin emergency responsetasksand serving on safety committees and teams.
Quality- Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations.Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.
Procedure Compliance- Each employee must read,understandand implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policiespertaining tohis/her job.
Qualified applicants will receive consideration for employment without regard to race,color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.
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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:
06/09/2026 - Until Filled
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

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.