Accounts Receivable Accountant II

TSC • Arlington, VA

6d • Remote

About The Position

TSC is seeking a detail oriented and experienced Accounts Receivable (AR) Biller to join our finance team. The ideal candidate will have hands-on experience with Deltek and a strong understanding of project-based billing, government contracting requirements, and project closeout processes. This role is responsible for accurate invoices, maintaining billing schedules, ensuring compliance with contract terms, and supporting full lifecycle project accounting through closeout. This role can be performed on a remote basis.

Requirements

• Bachelor’s degree in Accounting, Finance, or related field and 2–4 years of relevant billing or project accounting experience
• US Citizenship with the ability to obtain and maintain a government security clearance
• Experience with Deltek Costpoint
• Proven experience in billing or a similar financial role
• Strong computer skills including Excel, Outlook, and PDF document management
• Excellent communication and customer service skills
• Ability to manage multiple priorities and meet deadlines
• Strong attention to detail and organizational skills
• Intermediate mathematical and analytical skills
• Ability to work effectively in a fast-paced, deadline-driven environment, both independently and as part of a team

Nice To Haves

• Experience supporting government contracting environments
• Knowledge of billing compliance and contract requirements
• Strong problem-solving and analytical abilities
• Demonstrated customer service mindset
• Exceptional attention to detail and organizational skills

Responsibilities

• Prepare, review, and submit accurate and timely customer invoices in accordance with contract terms and billing requirements
• Manage billing activities within Deltek Costpoint
• Review contract documents to ensure billing compliance with federal, state, and commercial guidelines
• Perform detailed analysis of project costs, labor, expenses, and revenue recognition
• Monitor unbilled receivables and follow up on outstanding invoices as needed
• Coordinate with Project Managers and Project Controls to validate billing data and resolve discrepancies
• Support and lead project closeout activities, including: final invoice preparation and submission, reconciliation of project costs and revenue, de-obligation of remaining funds, clearing unbilled balances, ensuring all documentation is complete and compliant
• Assist with internal and external audits as required
• Maintain accurate customer records, billing files, and supporting documentation

Benefits

• TSC offers a stable work environment, a competitive salary, and a comprehensive benefit package; including Employee Stock Option Plan (ESOP) participation, 401k Plan, Flexible Work Schedules, Tuition Reimbursement, Co-Sponsored Health Plan, Paid Leave and much more.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level