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Propulsion Engineer II, Valves

Relativity Space - Long Beach, CA, United States - In-office - posted 2026-05-08

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Relativity Space is building rockets to serve today's needs and tomorrow's breakthroughs. The Terran R vehicle will deliver customer payloads to orbit, meeting growing demand for launch capacity. The Propulsion team is focused on developing and delivering highly performant and manufacturable engines for Terran R. Engineers own the entire lifecycle of their parts, from initial design through production to qualification and flight. The team fosters a culture of bottoms-up decision-making and ownership at all levels. As a Propulsion Engineer II specializing in Valves, you will be responsible for the design, analysis, development, and qualification of flow control devices for the Aeon R engine and Terran R launch vehicle. Your specific responsibilities include: - Design and analysis of clean sheet cryogenic, pneumatic, proportional, or solenoid valves - Detailed fluid, thermal, and structural analysis of piece parts and assemblies - Development and qualification test planning and execution of internally developed valves - Engine and vehicle test support for existing flow control products - Conducting trade studies to produce architectures and designs that satisfy system requirements You will collaborate across teams, shape decisions, and see your work come to life in record time. This is an opportunity to work on cutting-edge propulsion systems at a critical moment when Terran R is tangible and picking up momentum. Required qualifications: - Bachelor's degree in Mechanical Engineering or related engineering discipline - 2+ years of professional engineering experience - Direct experience applying engineering fundamentals in thermodynamics, structures, fluid dynamics, and heat transfer

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