Expert Administrative Support Specialist (2026-0216) Jobs

Senior Administrative Support SpecialistAcclaim Technical Services (ATS), founded in 2000, is a premier provider of tech-enabled solutions and operational services to a broad range of U.S. Federal agencies. As an Employee Stock Ownership Plan (ESOP) company-an uncommon advantage in our sector-we foster a culture of ownership, accountability, and shared success. This commitment to our people shows: ATS is consistently recognized as a top workplace in the DC area and continues to experience strong, strategic growth. We are actively recruiting a Senior Administrative Support Specialist with TS/SCI w/ Poly to support our Data and Systems Integration Division in McLean, VA. In this role, you will assist with the development and monitoring of department strategic plans, support technical communications and business management efforts within the mission and with other stakeholders; participate in program-level and organizational program review boards to foster cooperation within and across programs; collect information and draft department level responses to corporate action tasking, plan meetings and upcoming events; coordinate schedules, generate meeting minutes, document action items, provide travel support, serve as timekeeper, and track items in Taskit.