Subcontractor Administrator (SCA) III

Amentum; United States; Remote; USD 100,000 - 160,000; Full time

Job summary

Amentum is seeking a Subcontracts Administrator to support programs remotely from Alice Springs, Australia. The role covers cradle-to-grave subcontract administration, ensuring compliance with government policies and procedures and collaboration across HR, finance and program teams.

Responsibilities include negotiating terms, managing NDAs and CTAs, and overseeing subcontract performance while supporting proposal activities and staff training. Security clearance (Secret) is required.

Qualifications

• Bachelor’s degree in business administration or related field; five years of procurement/subcontracts experience.
• Security clearance: Secret required for role.
• Excellent communication and negotiation skills; working knowledge of SharePoint, MS Office, and integrated software applications.
• Experience with various subcontract types (Cost-Plus, Fixed Price, Time & Materials, and subsets).

Responsibilities

• Prepare, review, and maintain subcontract and procurement documentation in compliance with CPSR and FAR/DFARS.
• Develop and manage subcontract files; monitor deliverables and closeout processes.
• Evaluate proposals; conduct negotiations and prepare related documentation.
• Coordinate with internal and external stakeholders to ensure workflow and issue resolution.
• Manage lifecycle of NDAs, teaming agreements, subcontracts, CTAs from drafting to execution.
• Provide guidance on CPSR, FAR/DFARS compliance and internal procedures.
• Support proposals: issue RFPs/RFQs, data calls, kickoff and stand-up meetings.
• Deliver subcontract training and drive process improvements.
• Track contractor performance against cost, deliverables, and small business goals.

Skills

Communication skills

Negotiation skills

SharePoint proficiency

MS Office proficiency

Education

Bachelor’s degree in business administration or related field

Tools

SharePoint

Microsoft Office

Costpoint or ERP systems

Job description

Purpose and Impact:

Amentum is currently seeking a Subcontracts Administrator to support our program remotely in Alice Spring, Australia. 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. Responsible for ensuring compliance with government policies and procedures. This position will be expected to possess a good understanding of government subcontracting, work independently with some instruction, be solution-oriented, contribute meaningfully to team and/or organizational goals, demonstrate good judgement and business acumen, collaborates with stakeholders and other departments when needed.

Work Schedule:

Day shift - 5 days per week, 8 hours per day

Essential Responsibilities:

• Prepare, review, and maintain subcontract and procurement documentation, including acquisition plans, agreements, SOWs, certifications, and correspondence, in compliance with regulations such as CPSR and FAR/DFARS.

• Develop, manage, and maintain subcontract files, including monitoring deliverables, modifications, and correspondence, while ensuring compliance and supporting closeout processes.

• Evaluate proposals, quotations, and RFPs; conduct negotiations with subcontractors regarding terms, conditions, and pricing; and prepare associated documentation.

• Coordinate with internal stakeholders (e.g., HR, finance, AP, and program teams) and external stakeholders (e.g., subcontractors and service providers) to ensure seamless workflow and issue resolution.

• Manage the lifecycle of agreements (NDAs, teaming, subcontracts, CTAs), from drafting to negotiation and execution, ensuring alignment with company policy and regulatory requirements.

• Conduct compliance oversight and provide guidance to project teams on regulations (CPSR, FAR/DFARS) and internal procedures to ensure legal and company standards are met.

• Provide proposal support, including issuing RFPs/RFQs, conducting data calls, and participating in kickoff and stand-up meetings for new projects.

• Deliver subcontracts training for staff, recommend process improvements, and ensure that project and subcontract goals are met.

• Track and evaluate subcontractor performance, including cost, deliverables, compliance with terms, and small business goals.

• Perform other duties as assigned or requested.

Work Environment, Physical Demands, and Mental Demands:

The position is desk based and sedentary in nature, the ability to lift items up to 5kgs may be occasionally and participating in Site walks occasionally.

Minimum Requirements (Knowledge, Skills, and Abilities):

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

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

Security Clearance Required:

It is a condition of employment that employees obtain and retain the appropriate level of security clearance and medical clearance applicable to each role. The employee will require a Secret clearance.

Minimum Education:

• Bachelor’s degree in business administration or related field, and five (5) years of experience in procurement, subcontracts, supply chain or related field; or one (3) year of related experience.

• 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.

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

Preferred Qualifications:

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

STATEMENT OF WORK REQUIREMENTS

• At least 18 years of age.

• Able to fluently read, write and speak English

• Australian or US Citizen

This position is designated as a safety sensitive position.

As part of our commitment to maintaining a safe and compliant work environment, Amentum is a drug-free workplace and requires all personnel to comply with company drug and alcohol policies as a condition of employment. Employment is contingent upon successful completion of the drug screening process. Please note that this may include pre-hire screening for marijuana, as well as other federally controlled substances due to Amentum's role as a federal contractor and trusted partner to the US Government.

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.

Compensation Details

$100,000 - $160,000

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

09/17/2026 - 09/21/2026

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.