Demonstrated depth in at least one relevant missile modeling area, such as flight dynamics and vehicle modeling; guidance-law development or analysis; flight-control, autopilot, or control-system modeling; navigation, estimation, or multisensor integration; trajectory optimization or weapon-system performance analysis; seeker, tracker, fire-control, or terminal-engagement integration; or real-time simulation, HITL, or HWIL. Develop or integrate models of aerodynamics, propulsion, mass properties, inertia, actuators, control surfaces, thrust-vector control, navigation sensors, IMUs, GPS, seekers, fuzing, launch and ejection systems, staging, separation events, atmospheres, winds, gravity, targets, and threats as applicable.