Summary The Portfolio Manager at the US National Science Foundation serves as a Contracting Officer Representative, managing and overseeing contracts, acquisitions, and budgets, ensuring compliance, advising leadership, and administering a complex portfolio to support organizational objectives. This announcement will close on 07/13/2026 or once 100 applications are received, whichever occurs first. Responsibilities As a Portfolio Manager GS-301-14 MP, you will perform the following duties: Contract Management and Oversight: Serve as Contracting Officer Representative (COR) for organizational contracts, administer a complex portfolio of contracts, oversee service delivery, monitor contractor performance, and manage contract modifications. Acquisition Strategy and Portfolio Management: Lead annual acquisition activities, develop and execute acquisition strategies, manage a large portfolio of projects/contracts, and provide program and project management support Budget Formulation and Exe...