Principle Duties and Responsibilities: Essential Functions: In accordance with Gulfstream Flight Operations FOM/SOP, as crew, domestically and internationally (when qualified), operate Gulfstream aircraft in support of Airborne Customer Support (ACS), corporate transportation, customer accommodation, demonstration, Gulfstream maintenance, production test, and any other functions as assigned. Under the direction of the Chief Production Test Pilot and/or Senior Production Test Pilot, conduct flight test evaluations of production aircraft, engines, avionics systems, and other related systems to assure that aircraft are in accordance with existing design and performance specifications.