As a Senior Software Engineer on Space Ground Software, you will own the architecture, delivery, and operation of the command-and-control software that flies real space missions - the ground-side services that plan missions, command spacecraft, ingest and serve telemetry, drive antennas and ground stations, and keep deployed satellite systems running in production. Design, build, and operate backend services across the Space C2 stack (Go, gRPC/Protobuf): command & telemetry, mission and plan management, ground-station and antenna brokering, space-to-ground protocol stacks, file transfer, and access control.