Amentum is seeking a Subcontracts Administrator to manage the full subcontract lifecycle—from solicitation to closeout—supporting prime government contracts within the Engineering and Technology Business Group. You bring proven experience in federal subcontract administration and procurement systems. You can work independently, manage multiple priorities, and ensure high levels of internal customer satisfaction.

Knowledge, Skills, and Abilities

• Relationship Management: Expertly build and maintain productive partnerships with subcontractors and internal stakeholders.

• Analytical Reasoning: Strong attention to detail with the ability to interpret complex requirements and apply sound judgment.

• Strategic Negotiation: Influence positive outcomes through professional negotiation and collaborative partnership.

• Adaptable Execution: Ability to work independently or collaboratively in fast-paced environments with minimal oversight.

• Remote Coordination: Effectively support and coordinate distributed teams across multiple time zones

Core Responsibilities

Manage the full subcontract life cycle—from planning and RFP issuance to negotiation, award, and closeout—ensuring alignment with prime contract requirements and Amentum policies. Key duties include: 

• Lifecycle Management: Administer various subcontract types (CPFF, T&M, FFP) in compliance with FAR/DFARS regulations.

• Systems & Compliance: Maintain audit-ready files using Deltek Costpoint, AMRO, and SharePoint; manage subcontractor time collection and invoicing systems.

• Performance Tracking: Produce key metrics, including cycle time, aging, burn rates, and closeout status.

• Stakeholder Engagement: Act as the primary liaison between suppliers and internal management to resolve issues and ensure execution. 

• Contract Administration: Draft and negotiate subcontracts, NDAs, and modifications while applying mandatory FAR/DFARS flowdowns and terms.

• Proposal Management: Issue RFPs, evaluate supplier proposals for SOW compliance, and conduct price/cost analyses to mitigate risk.

• Financial Oversight: Monitor funding ceilings and burn rates, coordinate invoice processing, and support subcontractor timekeeping.

• Compliance & Guidance: Maintain audit-ready files and provide procurement expertise to cross-functional stakeholders. 

Minimum Requirements:

Qualifications & Experience

• Education: Bachelor’s degree in Business, Supply Chain, or a related field.

• Experience: 5+ years in subcontracting or procurement; federal acquisition (FAR/DFARS) knowledge required.

• Technical Skills: Proven ability to manage subcontract documentation, compliance, and file maintenance.

• Financial Acumen: Skilled in price/cost analysis, scope evaluation, and negotiation strategy.

• Contract Management: Proficiency in administering FP, CR, and T&M contract types.

• Risk Management: Ability to identify risks and implement practical mitigation strategies.

• Communication: Strong professional English communication skills for all organizational levels.

• Execution: Excellent organizational skills to manage competing priorities and stakeholder reporting. 

• Travel: Ability to travel for occasional onsite meeting requirements.  Must be able to obtain and maintain facility credentials/authorization. Note: US citizenship is required for facility credentials/authorization at the onsite work location.

• Prior RFP/Proposal support experience.

Systems & Tools

• Software: Proficient in Microsoft Office (Word, Excel, PowerPoint).

• ERPs: Experienced with procurement systems (e.g., CostPoint, SAP, OnBase) and electronic filing. 

Benefits

Amentum offers the following benefits for this position, subject to applicable eligibility requirements: medical dental and vision insurance, 401(k) retirement plan, life insurance, long-term and short term disability insurance, 15 days of paid time off, 10 holidays (8 fixed/2 flexible),and parental leave.

       

Compensation Details:

US: $85,000 - $125,000

       

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:

03/13/2026 - 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.