Subcontract Administrator III

Amentum, a global leader in critical mission support, engineering, technology, and national security solutions, is seeking a Subcontract Administrator III to support a government contract based in Kings Bay, Georgia. The KBOS contract operates 24/7/365, with standard hours Monday-Friday, 0700-1600. Onsite with potential opportunity to work hybrid.

Purpose and Scope

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 and Amentum 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.

The selected person will work under the direction of a Subcontract Manager as well as receive additional direction from the On-Site Program Management staff. The following activities will be performed:

• Coordinate, develop, and produce subcontract documentation such as NDAs/TAs, subcontracts agreements, modification 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

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

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

• Performs due diligence research for subcontractors, vendors, and consultants

• Develop and maintain subcontract files in accordance with Amentum policies, procedures, and processes.

• Monitor and track subcontractor deliverables including but not limited to invoices, certified payroll reports, daily status reports, etc..

• Review and process subcontract purchase requisitions.

• Review contract documents and coordinate with Contracts Manager/Project Manager of any issues found.

• Reviews prime contract documents for FAR compliance issues and ensures compliance with those FARs throughout contract performance.

• Works with Legal and Contracts to resolve subcontractor disagreement of terms and conditions, execute contract terminations or to file a claim as required.

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

• Responds to inquiries, provides reports containing all requested contract data, analyzes incoming correspondence for action required, researches and resolves problems related to day-to-day contract administration and associated operational issues.

• Ensure compliance with company policy and procedure.

• Support internal and external audit.

• Perform all other position related duties as assigned or requested.

Qualifications

Education and Experience

• 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.

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

• US Citizenship.

• Active Secret or TS/SCI Clearance; or ability to receive or maintain Secret or TS/SCI clearance.

Preferred Skills

• Understanding of contract requirements, risk management, contract documentation, and procurement for services and construction services.

• Ability to read, analyze, and interpret general business procedures and governmental regulations (Federal Acquisition Regulations (FAR)).

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

• Ability to write effective business correspondence and subsidize language in contracts.

• Ability to effectively present information, receive and respond to questions from groups of managers, clients, and customers both orally and in writing.

• Ability to interface with subcontractors to negotiate, resolve disputes, and make sound business decisions.

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

• Advanced organizational skills are required.

Work Environment, Physical Demands, and Mental Demands

• Typical office environment with no unusual hazards, occasional lifting to 20 pounds, constant sitting while using the computer terminal, constant use of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, and constant mental alertness; must possess planning/organizing skills and be able to work under deadlines.

• Ability to travel to multiple job sites within 50 miles of each other.

Compensation Details:

$100000

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:

05/13/2026 - 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 ( .