Job Description

AMENTUM is a leading provider of integrated global mission services to the U.S. Government and its allied partners. AMENTUM provides training, logistics, operations and maintenance services to support complex missions for customers around the world. AMENTUM employs approximately 44,000 people in over 80 countries supporting some of the most meaningful and exciting missions in the world.


AMENTUM is currently seeking a Billing Specialist I to support international programs.

Duties and Responsibilities:

Preparing detailed invoice packages with appropriate documentation and backup, as per standing policies and procedures. Preparing and reconciling labor postings for T&M billing. Preparing correcting journal entries for billing. Classifying billable vs. non-billable costs, based on program standards. Validating accuracy of system transactions. Research of old transactions for billing. Detailed unbilled analysis. AR aging analysis. Keeping accurate and complete records and tracking invoice status. Following up with field and US based teams on invoice and cost status. Timely rework of invoice rejections. Review and tracking of contract funding. Response to audit requests, as necessary. Verification, cost allocation and receiving of subcontracts' invoices. Other program accounting and billing work, as directed.

Education and Training:

Bachelor's Degree in Accounting, Finance, or Business.

Work Experience Requirement:

3-5+ in an Accounting or Finance related field At least 2 Years in an Accounting-specific function

Knowledge, Skills and Abilities Requirements

Language Skills:

Strong English communication skills, both written and oral

Mathematical Skills:

Advanced Math skills (University level)

Reasoning Abilities:

Ability to define problems, collect and analyze data, establish facts and propose solutions Ability to exercise sound judgement and make decisions independently

Other Knowledge, Skills and Abilities:

Have strong MS Office skills, especially in Excel and Word Have strong written and verbal English communication skills Have the ability to work through problems to completion Be able to follow and accurately document processes and procedures Have strong analytical skills Be very detail oriented Have experience with Microsoft Dynamics, Cost Point experience is a plus

AMENTUM is an equal opportunity employer and drug-free workplace.



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.