AMENTUM is a leading provider of integrated integral 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 Analysts 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.
- Professional Qualification preferred e.g., CPA,ACCA or Equivalent.
- Work Experience Requirement:
- 3-5+ in an Accounting or Finance related field
- At least 2 Years in an Billing specific function
- Experience providing support to international customers is an advantage.
- Knowledge, Skills and Abilities Requirements

Language Skills:
- Strong English communication skills, both written and oral
- Mathematical Skills:
- Advanced Math skills (University level)
- Intense attention to detail, and the ability to investigate complex discrepancies.
- Reasoning

📌 Billing Analyst I (Buenos Aires)
🏢 Amentum
📍 Buenos Aires