Amazon Leo is Amazon's low Earth orbit satellite network. Our mission is to deliver fast, reliable internet connectivity to customers beyond the reach of existing networks. From individual households to schools, hospitals, businesses, and government agencies, Amazon Leo will serve people and organizations operating in locations without reliable connectivity. Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum. We are looking for a Thermal Test Engineer who will support Amazon Leo in the development of satellite and ground components and subsystems, by driving thermal test campaigns to validate designs, support fast design iterations, and help us go from design to launch, through development, qualification and acceptance testing activities. The ideal candidate must have experience in thermal cycle and vacuum testing, producing actionable data to influence the design of spacecraft components and subsystems. Responsibilities: - Planning and development of thermal cycle and thermal-vacuum testing campaigns. - Development of data acquisition systems and instrumentation for thermal tests. - Design of thermal test fixtures, power and data harnesses and additional required interfaces. - Development of heaters and their corresponding controllers. - Sizing and selection of cooling systems for in-air testing. - Driving test automation for high volume production. - Participation in reviews to align mechanical designs for testing and verification activities. - Planning and execution of test campaigns.