Shield AI seeks a Senior Engineer to design, develop, and integrate safety-critical Run-Time Assurance (RTA) software for autonomous aircraft and platforms. The role focuses on C++ development of real-time safety capabilities, hardware-in-the-loop integration, and flight-test support for the X-BAT collaborative combat aircraft.… Responsibilities include adapting reusable safety components into production systems, implementing real-time code at autonomy/flight-control boundaries, and strengthening engineering evidence through CI, static analysis, and rigorous testing. Requires 5+ years of embedded/autonomy/aerospace software experience, strong modern C++ and Linux skills, and familiarity with safety-critical development practices.