Senior DoD Contracts & OTAs Lead

Applied Physical Sciences (APS) seeks an experienced Principal Contracts Administrator in Concord, MA to manage the cradle-to-grave contract portfolio and ensure compliance with company policy and government regulations. You will work under the Director of Contracts and Supply Chain, with flexibility for work-from-home arrangements. This role requires deep knowledge of government contracting, OTAs, and export controls, plus advanced Excel and strong communication skills.