Hands-on experience with propulsion or fluid system component fabrication, assembly, and testing including tube bending, tube routing, welding, brazing, pressure vessel fabrication, valve assembly, structural proof testing, leak testing, and functional testing. Expertise in at least one propulsion or fluids manufacturing domain: cnc machining, metal forming, additive manufacturing, tube cleaning and routing, mechanical assembly, welding, tooling, vehicle integration, precision alignment, interface control.