Billing Specialist - Hybrid

Westat is a leader in research, data collection and analysis, technical assistance, evaluation, and communications. Our evidence-based findings help clients in government and the private sector accelerate advancements in health, education, transportation, and social and economic policy. Our dedication to improving lives through research and our approach to projects grounded in investigative curiosity, statistical and data rigor, adaptive methods, and advanced technology are why clients find exceptional value in our work.
Westat is seeking a Billing Specialist to be responsible for preparing accurate, timely, and compliant invoices for federal, state, and local government clients. This role requires strong knowledge of government contract types, compliance requirements, and ERP systems commonly used in the GovCon industry. The specialist works closely with project managers, finance teams, and auditors to ensure accuracy and adherence to FAR, DFARS, and agency specific regulations.
This is a full-time position with a hybrid work arrangement at our corporate headquarters (1-2 days per week) in Bethesda, Maryland.
Job Responsibilities:

• Prepare invoices for cost plus, time and materials, and fixed price contracts, reconcile labor, ODCs, subcontractor costs, and indirect burdens, and submit invoices through government systems such as WAWF/iRAPT, IPP, or agency specific portals.
• Ensure invoices meet formatting, documentation, and approval requirements.
• Prepare documentation for DCAA audits, internal audits, and customer reviews, maintain detailed billing files and audit ready documentation and generate AR aging reports and support collections efforts.
• Work with project managers to validate billable costs and funding status; coordinate with AP, payroll, and subcontract management to ensure accurate cost flow.
• Communicate with contracting officers, CORs, and internal stakeholders to resolve billing issues.

Basic Qualifications:

• Typically requires a bachelor’s degree in accounting, Finance, Business, or related field or equivalent experience. 
• A minimum of 2 years of billing experience in government contracting or professional services using Deltek Costpoint.
• Understanding of indirect rate structures, provisional billing rates, and cost pools.
• Demonstrated Excel skills, including pivot tables and lookups.

Preferred Qualifications:

• High attention to detail and accuracy.
• Demonstrated communication and documentation abilities.
• Ability to manage multiple deadlines and work in a fast-paced environment.

Westat offers a well-rounded and comprehensive benefits program focused on wellness and work/life balance. Subject to plan requirements, employees may participate in:

• Employee Stock Ownership Plan
• 401(k) Retirement Plan
• Paid Parental Leave
• Vacation Leave (15 days per year)
• Sick Leave (9 days per year)
• Holiday Leave (7 government holidays and 2 floating holidays)
• Professional Development
• Health Advocate
• Employee Assistance Program
• Travel Accident Insurance
• Medical Insurance
• Dental Insurance
• Vision Insurance
• Short Term Disability Insurance
• Long Term Disability Insurance
• Life and AD&D Insurance
• Critical Illness Insurance
• Supplemental Life Insurance
• Flexible Spending Account
• Health Savings Account

Any offer of employment may be contingent upon receipt of acceptable results from a post-offer background screening, if required for the specific position, which may include, for example, identity verification, employment history, motor vehicle driving record history, and criminal or sexual offender records history. Any background screening results will be evaluated through an individualized assessment based on the individual’s specific record and the duties and requirements of the position.

This opportunity will be posted for a minimum of 5 days and applications will be accepted on an ongoing basis.

Employment Eligibility: This is a U.S.-based position. Candidates must be authorized to work in the United States on a full-time basis. Westat does not offer employment-based visa sponsorship (including H-1B sponsorship) for this role. Depending on project requirements, some positions may require employees to meet specific residency criteria.

Westat is an Equal Opportunity Employer and does not discriminate on the basis of race, creed, color, religion, sex, national origin, age, veteran status, disability, marital status, sexual orientation, citizenship status, genetic information, or any other protected status under applicable law. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.