Company Overview

For 29 years, clients in the private and public sectors have relied upon SOS International LLC (SOSi) for critical operations in the world’s most challenging environments. SOSi is privately held, was founded by its current ownership in 1989, maintains corporate headquarters in Reston, VA, and specializes in providing logistics, construction, training, intelligence, and information technology solutions to the defense, diplomatic, intelligence and law enforcement communities.

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.

CORPORATE-190211-8516: Accounts Payable Specialist II
LocationU.S. - Virginia - Reston
Open Date2/11/2019
SOS International LLC (SOSi) is seeking an Accounts Payable Specialist to join our team in Reston, VA. The Accounts Payable Specialist is responsible for the daily and weekly processing of accounts payable.


  • Processes daily and weekly check runs and obtains authorized signatures on checks
  • Reviews invoices for proper authorization and approval
  • Receives, reviews and processes AP documentation on a timely basis
  • Adds new vendor information to Deltek Costpoint
  • Analyzes AMEX transactions and recordings
  • Ensures accuracy of data entry; monitors AP for duplicate invoices and requests for payment on statements instead of approved invoices
  • Responds to inquiries on invoice payments from vendors; investigates issues and questions related to payment processing and any discrepancies in a timely manner
  • Supports processing and administration of wire transfers
  • Administers receipt of cash
  • Keeps filing up to date; maintain AP files in an orderly and efficient manner
  • Performs other duties as assigned by manager
  • One to three years’ of Accounts Payable experience working in a U.S. Government contracting environment
  • High school diploma required, college courses in accounting preferred
  • Proficient in Excel and Word, 10-key by touch
  • Experience with Deltek CostPoint and Deltek T&E preferred
  • Strong problem solving skills, basic accounting principles knowledge, documentation skills, research and resolution skills, data analysis and multi-tasking skills
  • Thorough knowledge of applicable accounts payable/general ledger systems and procedures, financial chart of accounts and corporate procedures
  • Ability to communicate effectively verbally and in writing
  • Ability to interact with employees and vendors in a professional manner
  • Ability to perform mathematical computations such as percentages, fractions, addition, subtraction, multiplication and division quickly and accurately

Work Environment

  • Working conditions as normal for an office environment
  • Requires periods of non-traditional hours including consecutive nights or weekends when necessary