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Amentum Subcontract Administrator III in Helena, Montana

Remote-Telework Role. Must be a US Citizen to apply. Must have Aerospace or Aviation industry experience.

Aviation or Aerospace - Subcontract Administrator III is responsible for all phases of subcontract administration, cradle to grave, to include acquisition planning, source selection, cost/price analysis, negotiation, post-award administration and closeout. Responsible for ensuring compliance with government policies and procedures. This is a mid/senior level position that will be expected to possess a solid understanding of government subcontracting, work independently with minimal instruction, be solution-oriented, contribute meaningfully to team and/or organizational goals, demonstrate excellent judgement and business acumen, collaborate with stakeholders and other departments, identify risks and mitigation strategies, and support special projects.

Essential Responsibilities:

  • Coordinate, develop, and produce subcontract documentation such as Subcontracts agreements, Master Agreements, Blanket Purchase Order Agreements, Agreement Modifications, task/delivery orders, solicitations, estimates, cost/price analyses, negotiation memorandums, justifications, determinations, special contract provisions, representations, certifications, and correspondence.

  • Coordinate, develop, and produce procurement documentation such as acquisition plans, source selection plans and evaluation criteria, RFPs, agreements, profit analyses, statements of work, data submittal requirements, and proposal preparation instructions.

  • Selecting the appropriate Subcontract/Purchase Order type (FFP, CR, T&M, IDIQ, etc.) that is best suited for the prime contract, program needs, and overall risk profile.

  • Evaluate proposals and quotations, determine offer responsiveness, responsibility, and eligibility for award, and perform discussions and negotiations.

  • Develop and maintain subcontract files. Monitor and track subcontractor deliverables.

  • Review and process subcontract purchase requisitions.

  • Conduct subcontract file reviews in support of Government and GSCM Procurement Compliance audits.

  • Conduct subcontracts training for technical and subcontract staff.

  • Draft/review/negotiate teaming and non-disclosure agreements.

  • Coordinate with accounting and finance departments in administering subcontract invoicing and payments, job cost management, contract audit/filing, and closeout process.

  • Ensure compliance with CPSR, FAR/DFARS, Agency-specific regulations, and Amentum policies on subcontracts and procurement.

  • Ensure subcontract requirements are met, monitor cost status, assist in cost management, and coordinate issue resolution with customers.

  • Ensure the management of subcontract file(s), prepare and control of all modifications and correspondence.

  • Interface and coordinate with subcontractors and service providers, as well as Amentum HR, Finance, AP, and Program teams. Participation in cross-functional collaboration and tiger teams.

  • Monitor small business goals on assigned subcontracts, coordinate with technical staff, maintain records, and participate in small business outreach activities.

  • Develop negotiation strategy and conduct negotiation of terms and conditions with subcontractors.

  • Negotiate terms and conditions with Suppliers and Subcontractors.

  • Ensure cost or price analysis is conducted and adequately documented to ensure fair and reasonable price.

  • Maintain and process purchase orders, releases, and modifications in Amentum’s business systems.

  • Close out subcontracts.

Minimum Knowledge, Skills, and Abilities:

  • Bachelor's degree in Business Administration or related field, and five (5) years of experience in subcontracts, procurement, supply chain or related field, or a Master’s degree and three (3) years of experience. For this role, at least three (3) years of prior experience must be directly with subcontract administration.

  • Two (2) years of experience in procurement or related field may be substituted for each year of the four (4) years of college.

  • Excellent communication and negotiation skills and working knowledge of SharePoint, Microsoft Office Suite, and integrated software applications are required.

  • Experience with various subcontract types (Cost-Plus, Fixed Price, Time & Materials, and subsets thereof)

  • Must have Aerospace or Aviation industry experience.

  • US Citizenship is required to apply.

Preferred Knowledge, Skills, and Abilities:

  • Experience with Costpoint or similar ERP system, to include use of the purchasing module.

  • Process improvement experience in a recognized methodology (Lean Six Sigma, CMMI, ISO)

  • Experience with AMRO, IBM Maximo, Hyland OnBase, Unanet, IBM Cognos, Deltek Time and Expense, OnPoint, Centresuite systems

  • Capture and Proposal support experience

  • Knowledge of prevailing wage requirements, to include Davis Bacon Act, Service Contract Act/Wage Determination, Collective Bargaining Agreements.

  • Specialized knowledge such as Construction, Engineering, Manufacturing, Labor Broker subcontract agreements.

  • Experience with negotiating agreements with non-profits and universities.

May be required to travel domestically and internationally on short notice.


Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, religion, color, sex, gender, national origin, age, United States military veteran’s status, ancestry, sexual orientation, marital status, family structure, medical condition including genetic characteristics or information, veteran 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.

Labor Law Posters (

EEO including Disability/Protected Veterans