Principal-level technical leadership / defense context: Setting architecture for multiple teams, mentoring principal engineers, or acting as final technical reviewer; EW-aware communications, resilient links, tactical radios, or high-reliability systems. You will own the architecture that connects our FPV drones, ground stations, repeaters, radios, antennas, embedded systems, video links, command-and-control links, and platform-level electrical constraints into a coherent system that works in the field.