Project Manager (Approach to Government)

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.

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Role Description:

As the Project Manager – AIR6500, you will lead, manage and coordinate the development of a major Government approval submission in support of the AIR6500 Program. Working within a complex Defence capability environment, you will be responsible for planning, integrating and maturing all project information required to support a successful Second Pass Government submission in accordance with the One Defence Capability System (ODCS).Working closely with the Capability Sponsor, CASG stakeholders, Defence Groups, industry partners and specialist subject matter experts, you will coordinate the development of submission artefacts covering scope, cost, schedule, commercial strategy, risk, governance and execution planning. You will act as the central integration point, ensuring information is mature, aligned and delivered to support key Government decision milestones.The role requires strong Defence capability development experience, exceptional stakeholder engagement skills, and the ability to navigate complex governance, approvals and acquisition environments. You will provide advice and reporting to senior Defence leadership while coordinating activities across multiple stakeholder groups to ensure submission readiness.This role is ideally suited to an experienced Program Manager, Capability Manager, Project Director or Defence approvals specialist with a strong understanding of Defence investment, acquisition and governance processes.

Day to Day Tasks include:

• Lead and coordinate development of the AIR6500 Second Pass Government submission.

• Establish and maintain an integrated submission schedule and critical path.

• Coordinate project scope, cost, schedule, commercial and risk inputs.

• Manage submission dependencies, actions, decision points and milestones.

• Coordinate Defence and industry stakeholder contributions and reviews.

• Facilitate working groups, stakeholder forums and governance activities.

• Identify and manage issues, risks and opportunities impacting submission readiness.

• Support development of business cases, approval documentation and supporting artefacts.

• Monitor progress against key milestones and provide status reporting.

• Escalate critical issues and decisions requiring senior leadership attention.

• Ensure submission activities align with Defence governance and ODCS requirements.

• Support assurance, review and approval activities throughout the submission lifecycle.

Essential Requirements:

• Minimum 8+ years' experience delivering Defence capability development, acquisition, program management or projectintegration activities.

• Demonstrated experience supporting First Pass, Second Pass, Combined Pass or equivalent Defence approval processes.

• Strong understanding of the One Defence Capability System (ODCS) and Defence governance frameworks.

• Experience coordinating scope, schedule, cost, commercial and risk information for major Defence programs.

• Proven ability to manage complex stakeholder environments across Defence and industry.

• Experience developing executive briefs, reports, submissions and governance materials.

• Strong project planning, scheduling and coordination skills.

• Excellent communication, facilitation and stakeholder engagement capabilities.

• Ability to manage multiple priorities and competing stakeholder requirements.• Proficiency in Microsoft Office Suite and project reporting tools.

• NV1 – NV2 Security Clearance.

Desirable Requirements:

• Previous experience within CASG, Capability Sponsor or Defence Headquarters environments.

• Knowledge of Defence Investment Committee and Government approval processes.

• Experience engaging industry partners to support capability definition and acquisition planning.

• Experience preparing business cases, investment submissions or major project approvals.

• Qualifications in Project Management, Engineering, Commercial Management or a related discipline.