The ideal candidate is a hands-on propulsion engineer with strong experience in liquid bipropellant rocket engines, hypergolic propulsion systems, pump-fed systems, and spacecraft propulsion integration, with the judgment and leadership required to take full technical ownership of a flight propulsion system. The RE will own the propulsion system across its complete lifecycle, including engine architecture, propellant feed and pressurization systems, valves and fluid components, start and shutdown sequencing, thermal management, controls and instrumentation, performance, reliability, testing, qualification, spacecraft integration, and flight operations.