Financial Assistant

Amentum; Aiken (SC); On-site; USD 59,000 - 62,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (including 401(k)匹

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax‑saving options

Disability and life insurance

Pet insurance

Job summary

Amentum is seeking an experienced finance administrator for Savannah River operations. The role focuses on monthly O&M invoicing, pricing, and procurement support within a government contracting environment.

Candidates should hold an Associate’s degree in finance with 3+ years of related experience, and be proficient in Microsoft Office and Deltek Costpoint. Strong analytical and communication skills are essential.

Qualifications

• U.S. citizen required due to government contracting role.
• Degree in Accounting, Finance, or related field with minimum 3 years of relevant experience.
• Strong analytical and problem-solving abilities.
• Multi-tasker with strong communication and interpersonal skills.
• Proficient in Microsoft Office including Excel, Word, SharePoint and PowerPoint.
• Experience using Deltek Costpoint.

Responsibilities

• Monthly O&M invoicing: collect material, verify billing codes, ensure pricing accuracy.
• Develop new/adjust/reprice/CLINs as requested; prepare pricing tables and cover letters.
• Maintain EMS pricing ROM letters and Master EMS tracking; process and invoice after approval.
• Seek quotes for maintenance contracts; process purchasing requisitions and vendor payables.

Skills

Analytical skills

Problem-solving

Communication

Interpersonal skills

Microsoft Office

Excel

Word

SharePoint

PowerPoint

Deltek Costpoint

Education

Associate’s degree in finance

Tools

Deltek Costpoint

Job description

Purpose and Impact:

DOE Savannah River Site (SRS) processes and stores nuclear materials in support of national defense and U.S. nuclear nonproliferation efforts. The site also develops and deploys technologies to improve the environment and treat solid and liquid nuclear and hazardous waste left from the Cold War. While current missions remain the highest priority, SRS leadership places great importance on developing broader missions for SRS that use its unique capabilities to address critical national missions. The Operation and Maintenance operator is Savannah River Nuclear Solutions (SRNS), as a Subcontractor to SRNS, Amentum Technology Inc. (ATI) provides telecommunications system operation and maintenance services as well as site operator services at SRS. This position supports operation and maintenance program managing the voice and data services at the Savannah River site.

Essential Responsibilities:

Monthly O&M invoice: Collect all material to be billed. Verify material, quantities, and billing codes are accurate Ensure the pricing is correct for the material Purchasing: Pricing will be requested and emailed to our procurement department. Submit to program manager for approval. Make updates to the purchase requisition and ensure that purchase order is received Develop new, adjust, re-price, and reinstate CLINs as requested by customer and Amentum management Assist with the creation of monthly and annual reports to SRNS and Program Manager Prepare cover letters and create pricing tables. Acquire and maintain all supporting documentation related to the development of CLINs for EMS’s/Work Orders before submitting to SRNS Verify EMS pricing, generated Rough Order of Magnitude (ROM) letter to the customer, maintain Master EMS tracking database, process approved ROM letters to the Proposal stage for approval from ATI & SRNS customer, when EMS is completed invoice to SRNS. Seek quotes for the renewal of maintenance contracts. Process purchase requisitions and orders including obtaining/verifying vendor quotes and pay invoices Interact with vendors and supplies Deliver copy of invoice with all backup documentation to SRNS; upon approval prepare cover letter, official invoice and submit for payment

Minimum Requirements (Knowledge, Skills, and Abilities):

Due to the nature of the work, the candidate must be a U.S. citizen. Degree in Accounting, Finance, or a related field with minimum of 3 years of relevant experience in government contracting for multiple type contracts (FFP, CPFF, T&M). Team player with strong analytical and problem-solving skills. Multi-tasker with strong communication and interpersonal skills. Able to recognize and research issues and make recommendations/decisions based on that research. Experience using Microsoft Office applications including Excel, Word, SharePoint and PowerPoint. Intermediate knowledge of Excel and Excel functions. Experience in Deltek Costpoint.

Minimum Education:

Associate’s degree in finance

Minimum Years of Experience:

3 – 5 years of prior assistant roles in finance.

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:

$58,913 - $62,400

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

Original Posting: 11/02/2026 - 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, 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.

Requests for accommodation will be considered on a case‑by‑case basis.