Combustion Devices- Propulsion Design Engineer I

Job Description At Relativity Space, we're building rockets to serve today's needs and tomorrow's breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress beyond the known. Joining Relativity means becoming part of a company where autonomy, ownership, and impact are valued at every level. Here, you're not just executing tasks; you're solving new problems, helping develop rockets, factories, and a business from the ground up. Whether in propulsion, manufacturing, software, avionics, or corporate functions, you'll collaborate across teams, influence decisions, and see your work come to fruition quickly. Relativity fosters creativity and technical rigor, and your voice will help shape our shared story. This is a unique moment to leave your mark on our product, process, and culture, with Terran R gaining momentum. The most meaningful work of your career awaits. Join us. About the Team: The Propulsion team at Relativity develops engines for the Terran R vehicle. We oversee their design from concept to launch and reuse, working closely with Manufacturing, Test, Launch, and Integration teams. Our goal is to develop our engines rapidly and support Terran R's first launch in 2026. As part of this team, you'll help build, test, and improve the Aeon-R engine systems, contributing to bringing Terran R into space. About the Role: You will own propulsion combustion devices and systems from concept through manufacturing and implementation. This role requires skills in design, analysis (structural, thermal, fluid), manufacturing, testing, project management, and communication. You will collaborate across teams and take ownership of your projects. Success in this role involves thriving in ambiguity and leading collaborative projects with minimal oversight. This position offers the chance to significantly impact a fast-growing startup and to grow professionally in an environment that values growth and risk-taking. About You: Bachelor's degree in a science or engineering field This is an entry-level position; professional experience is not required Experience applying engineering fundamentals in thermodynamics, thermal, structural, and fluids Nice to haves but not required: Experience with rocket engine development and/or testing Evidence of ownership from academic or work projects Knowledge of engine subsystems such as combustion devices, heat exchangers, ducting Exposure to additive manufacturing and automation techniques Relativity Space is committed to transparency and fairness in compensation. Actual pay will depend on experience, qualifications, and other factors. Our total rewards include competitive salary and equity, generous PTO and sick leave, parental leave, an annual learning stipend, and more. For details, please visit our benefits page. Hiring Range: $97,000—$124,300 USD We are an equal opportunity employer and value diversity. We do not discriminate based on race, color, religion, sex, sexual orientation, gender identity, age, marital status, veteran status, or other protected characteristics.

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