Subcontracts Administrator-2

Amentum; Chantilly (VA); Hybrid; USD 100,000 - 125,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off

401(k) matching

Educational reimbursement

Parental leave

Employee stock purchase plan

Job summary

Amentum seeks a Subcontracts Administrator in Chantilly, VA for cradle-to-grave subcontract management on Federal contracts in a hybrid work environment.

You will prepare and negotiate all agreements, issue RFPs/RFQs, manage change orders in Costpoint, and guide project teams on CPSR, FAR/DFARS compliance. A Bachelor's degree and 6–8 years of experience, plus the ability to obtain a TS clearance, are required.

Qualifications

• Bachelor's degree required.
• 6–8 years of relevant experience in subcontract administration.
• Ability to obtain government security clearance (TS).

Responsibilities

• Provide cradle-to-grave subcontract administration for Federal contracts.
• Prepare, negotiate, and manage subcontracts, NDAs, teaming and CTAs.
• Create and manage POs and Change Orders in Costpoint; monitor subcontractor compliance.
• Issue RFPs/RFQs and conduct complex negotiations with vendors.
• Support project teams and ensure compliance with CPSR, FAR, and DFARS.
• Review data in Procurement Requisition system and drive process improvements.

Skills

Security clearance eligibility

Deltek Costpoint experience

FAR / DFARS knowledge

Negotiation skills

Analytical ability

MS Office proficiency

Education

Bachelor's degree

Tools

Deltek Costpoint

Job description

Purpose and Impact: Amentum is currently seeking a Subcontracts Administrator! This is a wonderful opportunity to gain more experience as a Subcontracts Administrator in a fast-paced, rapidly growing organization. This is a hybrid position.

Work Schedule: Regular 8:30 to 5:30

Essential Responsibilities:

• Provide cradle-to-grave subcontract administration for Federal contracts.
• Administration of assigned subcontracts and purchase orders.
• Prepare and negotiate all agreements with partners/subcontractors, including NDAs, teaming agreements, subcontract agreements, consultant agreements and CTAs.
• Work with project teams to support day-to-day subcontract administration, including receiving requests from project teams for subcontractor agreements, purchase orders, and reviewing data in the Procurement Requisition system.
• Guide project teams in addressing difficult subcontract actions and proactively educate them on various subcontract and compliance issues, especially CPSR, FAR, DFARS, and/or other Federal Government statutes, laws, regulations, and requirements.
• Create Purchase Orders and Change Orders in Deltek Costpoint to provide funding, POP, and SOW to subcontractors, and maintain tracking of all subcontractors to ensure their compliance with Amentum’s terms and conditions.
• Provide proposal support to include issuing RFPs/RFQ's and all data calls to partners/subcontractors, conduct complex negotiations with subcontractors, including but not limited to terms and conditions and pricing, participate in proposal kickoff
• undefined
• Review and resolve issues on assigned tasks which affect company compliance, ensure satisfaction of legal requirements.
• Recommend possible revisions or process improvements to meet company needs.
• Engage with our client’s proposal team and appropriate contracts administrator.
• Correspond with internal and external customers in a timely and professional manner.
• Monitor and evaluate subcontractor performance.

Work Environment, Physical Demands, and Mental Demands: Attendance is always critical. Must be able to work a 40-hour workweek, normally Monday through Friday. However, times and days may vary depending on business requirements. Needs to be available to work overtime during critical peaks and be available to meet last‑minute requests for overtime should the situation occur.

Minimum Requirements (Knowledge, Skills, and Abilities):

• Ability to obtain and maintain a government security clearance
• Working to expert knowledge of CPSR desired and experience with Deltek Costpoint a requirement.
• Strong analytical ability to review and evaluate all types of subcontract agreements to negotiate all terms and conditions and be aware of areas of risk to the company.
• Deep understanding of the FAR and dFARs and other agency‑specific clauses.
• Ability to understand the requirements of prime contracts.
• Ability to work well in a collaborative business environment with peers within the subcontracts and contracts group as well as business developers and project teams.
• Advanced oral and written communication skills are required along with comprehensive knowledge of company policies and procedures, and workflow processes.
• Must be able to interface with individuals at all levels of the organization both verbally and in writing is critical.
• Proficiency in the use of MS Office product suite (PowerPoint, Excel, Word, SharePoint)
• Some PC repair/troubleshooting skills may be required.
• Effective time management skills.

Security Clearance Required: Ability to obtain a TS clearance

Minimum Education: Bachelor’s degree

Minimum Years of Experience: 6 to 8 years

Preferred Qualifications: AI if applicable to your program

Other Responsibilities:

Safety - Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self‑aid/buddy aid responsibilities, participating in emergency response tasks and 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, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/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.

#javelin

Compensation Details: $100,000-$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:

• 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: 10/02/2026 - 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.