Lead Integration & Test Engineer

Castelion is seeking a Lead Integration & Test Engineer to lead the safe and reliable integration and verification of warhead systems into complete hypersonic missile vehicles. This role involves owning end-to-end integration and test strategies from subassembly through full vehicle level, supporting ground qualification, environmental testing, and flight test campaigns. The position requires serving as the technical authority on warhead-vehicle integration and test while collaborating with cross-functional teams to meet stringent DoD standards and mission requirements.