Familiarity with embedded software development, including a sound understanding of discrete I/O, A/D converters, microprocessor system designs, serial communications (Async/Sync RS-422, etc.), ethernet protocols, and electrical test equipment (oscilloscopes, multimeters, power supplies, etc.). Supporting the design and integration of flight computers, data-handling systems, command and data buses, electrical power systems, guidance and navigation electronics, communications systems, sensors, and actuators.