The Accountant Senior provides professional accounting services by preparing, analyzing and processing financial
statements, budgets, customer invoices and monthly reports for assigned business area.
Principal Accountabilities
(Typical duties include the following, although specific duties vary by assignment or contract.)
1. Applies knowledge of accounting principles to activities associated with maintaining ledger accounts and
developing financial statements and reports.
2. Updates and reviews monthly account reconciliations.
3. Ensures that the internal financial reporting requirements of the company are met.
4. Ensures contract invoices are accurate and reconciled for monthly payment.
5. Responsible for monthly close and adjusting journal entries.
6. Point of contact for site and customer support for the financial management organization.
7. Audits and prepares reports on the status of the contract and identifies areas for remediation.
8. Reviews work prepared by others and provides constructive comments and/or suggestions to foster efficiencies
and improvements for the department.
9. Conducts studies and submit recommendations for improving the organization’s accounting processes.
10. Serves as a consultant to implement accounting functions during phase-in of a new contract.
11. Position may be assigned to a specific targeted business area and may require additional or specific job duties
related to assigned function which are not aforementioned.
12. Provides financial support including forecasting, budgeting, and analyzing variances from budget.
13. Prepares analyses of accounts receivables and administers the collection of past due receivables.
14. Prepares monthly invoices and submit timely billing to the customers.
15. Completes unbilled analysis for the project.
16. Identifies opportunities of cost savings for Operations and be the business advisor.
17. Works closely with Operations, support financial reporting for the client, and helps maintain financial health
of the project.
18. Creates and maintains project codes used by Operations.
19. Keeps good documentation of contracts and purchase orders.
Knowledge & Skills
• Knowledge of General Accepted Accounting principles (GAAP) required. Knowledge of Federal Acquisition
Regulations (FAR), Joint Travel Regulations (JTR), and Cost Accounting Standards (CAS) a plus.
• Ability to perform data extraction and manipulation, analyze financial data, and generate reports.
• Demonstrate proficiency in finance and accounting relational databases and Microsoft applications.
• Ability to work with numbers and complete assignments with attention to detail and a high degree of accuracy.
• Good interpersonal and communication skills with the ability to communicate effectively with all levels
throughout the organization.
• Ability to organize and prioritize multiple work assignments, work with little supervision, and work well under
pressure.
• Advanced knowledge of Microsoft Excel, Costpoint, Essbase, Hyperion, Cognos, Project Accounting
Experience & Education
• Bachelor’s degree in finance, business administration or demonstrated equivalent.
• Four (4) to six (6) years of previous accounting experience required. Prefer at least two (2) years in
government contract accounting experience.
Physical Requirements/Working Environment
Typical office environment with no unusual hazards, constant sitting while using the computer terminal, constant use
of sight abilities while reviewing documents, constant use of speech/hearing abilities for communication, constant
mental alertness, must possess planning/organizing skills, and must be able to work under deadlines. Position may
require travel.
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.
Compensation Details:
NA
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:
03/09/2026 - 03/12/2026Amentum 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.