Accounts Receivable Specialist (Billing)

US-VA-Tysons Corner
# of Openings
HQ - OBXtek
Job ID


OBXtek is an award winning Service Disabled Veteran Owned Small Business providing information technology and management services to the federal government. As the prime contractor on over 85% of its work, OBXtek is a leader in its field and has a robust corporate infrastructure that provides support for all of its programs.


OBXtek is looking for a full-time Accounts Receivable Specialist to work in our Tysons Headquarters Office. The right person will be responsible for the invoice process, Accounts Receivables, billing and other accounting functions for the company. 


Duties include the following:


  • Prepare accurate and timely monthly invoices in accordance with contract terms in Deltek Costpoint 7.1.1 (T&M, FFP, CPF type contracts).
  • Create and maintain billing files (soft and hard copies)
  • Prepare WBS for assigned programs, maintain funding and POP
  • Assist in the management of assigned programs work force
  • Maintain PLCs for assigned programs
  • Be able to identify and prepare necessary supporting documents for corrections to labor and non-labor posting errors
  • Setup billing and revenue formula’s in accordance with contract and GAAP
  • Create and maintain billing formats as needed
  • Responsible for collecting payments for invoices.
  • Reconcile billing data to Financial Reports ( PSR , Revenue Worksheet , Labor Summary).
  • Prepare monthly Unbilled Analysis on responsible contracts.
  • Support contracts during contract close out
  • Support quarterly reporting efforts for GSA contracts
  • Perform special projects in support of Billing and F&A when as assigned.
  • Assist in DCAA, SOX, and other audits.




  • Two to four (2-4) years’ experience in Government contract billing using Deltek Costpoint 7.1.1
  • Bachelor's Degree in Finance or related field preferred. 
  • Knowledge of FAR,cost accounting standards (CAS), and GAAP Generally accepted accounting principles.
  • Intermediate knowledge ofwide area workflow (WAWF) and Myinvoices, and other e-submission of invoices.
  • Proficient in MS Office (especially Excel).
  • Display a positive and proactive attitude, strong organizational skills, and the ability to prioritize and multi-task.
  • Strong verbal and written communication skills as there will be interactions with all levels of management.


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