Mayvin is seeking a Project Billing Specialist to join our on-site Corporate Accounting team in Alexandria, VA. This role is ideal for a motivated professional looking to build a career in government contracting finance. You'll gain hands-on experience supporting project financial management, billing, reporting, and contract compliance while working alongside an experienced team that values collaboration, accuracy, and continuous learning.
Must be a U.S. Citizen.
Must be eligible for a DOD Secret clearance.
Responsibilities:
- Prepare and submit accurate customer invoices in accordance with contract requirements
- Support project financial management, including project setup, contract maintenance, reporting, and financial reconciliation
- Review direct costs and expense reports for proper coding, FAR compliance, and adherence to company policies
- Assist with project financial planning and business management activities throughout the contract lifecycle
- Research discrepancies, recommend solutions, and resolve financial issues
- Support the Corporate Accounting team with financial reporting and other accounting functions
Required Qualifications:
- Bachelor's degree in Business, Finance, Accounting, or a related field
- Experience supporting government contracting finance or accounting
- Experience billing Time & Materials, Firm Fixed Price, and/or Cost-Reimbursable contracts preferred
- Experience with Unanet, Deltek Costpoint, or another government contracting accounting system preferred
- Advanced Microsoft Excel skills
- Strong analytical, organizational, and communication skills
- High level of integrity, professionalism, and attention to detail
- Self-motivated with a strong desire to learn and grow in government contracting finance
About Mayvin
Mayvin is more than a workplace—it’s a community built on innovation, ingenuity, and impact. Enjoy outstanding benefits and amenities, a truly supportive work environment, and continuous opportunities for professional growth. Your contributions are recognized and rewarded, and—most importantly—your voice matters. Here, you're treated with the dignity and respect you deserve.
Mayvin is proud to support the national security mission of the United States through exceptional service to the Departments of War, Homeland Security, and Justice. Join us in solving the nation's toughest challenges—because at Mayvin, #PeopleMatter and it's time to #ReimagineYourMission.
Skills Required
- U.S. Citizen
- Eligible for DOD Secret clearance
- Bachelor's degree in Business, Finance, Accounting, or related field
- Experience supporting government contracting finance or accounting
- Advanced Microsoft Excel skills
- Strong analytical, organizational, and communication skills
- High level of integrity, professionalism, and attention to detail
- Self-motivated with desire to learn and grow in government contracting finance
- Experience billing Time & Materials, Firm Fixed Price, and/or Cost-Reimbursable contracts
- Experience with Unanet, Deltek Costpoint, or another government contracting accounting system
What We Do
Mayvin is a global technical and knowledge-based services firm supporting government organizations like the Departments of Defense, Homeland Security, and Justice. They provide project management, mission support, engineering, cybersecurity, and data analysis services, emphasizing a corporate culture where 'People Matter'.







