Senior Billing Closeout Specialist

Job Locations US-VA-Reston
Job Post Information* : Posted Date 2 months ago(4/23/2020 3:34 PM)
Location : Location
Clearance Requirement
Job Requires Relocation


SOSi is currently seeking an experienced Senior Billing Closeout Specialist to join our Billing team at our operational headquarters in Reston, VA.


  • Prepare complex closeout invoices for submissions to customers of various types of government and commercial contracts (Time & Materials, Firm-Fixed-Price, Cost-Plus-Fixed-Fee, etc.), account analysis and financial reconciliations
  • Respond to customer inquiries and coordinate contract closeout
  • Maintain detailed status of all closeout projects; including those requested, in progress, and completed
  • Provide status of any issues or problems as well as how they are being addressed/resolved, and a timeline for resolution
  • Research and resolve a variety of internal and external customer inquiries concerning closeout billing status, and initiate communications to external and internal customers to resolve closeout billing discrepancies and issues
  • Assist with completion and final indirect rate invoices in advance of closeout
  • Assist with analysis for funding deobligations in advance of final closeout
  • Assist in preparing monthly invoices when needed
  • Promote compliance in accordance with the FAR and contract policy and procedures


  • Bachelor’s degree in Business or Accounting
  • Must have a minimum of seven to ten years experience in government contracting, to include experience in closing out a wide range of government contracts
  • Prior Deltek CostPoint and Cognos Reporting experience
  • Ability to multi-task; organize and prioritize multiple on-going projects
  • Independent self-starter with the ability to work with minimal supervision
  • Strong analytical and problem-solving ability
  • Excellent organizational skills and attention to detail
  • Excellent oral and written communication skills
  • Strong understanding of Microsoft Office Suite including advanced Excel

Preferred Qualifications


  • Fluency in a foreign language is desirable, but not required.
  • Ability to obtain and maintain a U.S. government security clearance.

Working Conditions

  • Working conditions are normal for an office environment.
  • Fast paced, deadline-oriented environment.
  • No travel will be required


SOSi is an equal employment opportunity employer and affirmative action employer. All interested individuals will receive consideration and will not be discriminated against on the basis of race, color, religion, sex, national origin, disability, age, sexual orientation, gender identity, genetic information, or protected veteran status. SOSi takes affirmative action in support of its policy to advance diversity and inclusion of individuals who are minorities, women, protected veterans, and individuals with disabilities.


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