Relativity Space

Propulsion Engineer I, Combustion Devices

Relativity Space$90K — $136K *
Aerospace & Defense
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in a science or engineering field
  • Experience in development of propulsion or combustion components
  • Solid foundation in thermodynamics, thermal, structural, and fluids

Responsibilities

  • Own assigned combustion component from design to flight
  • Coordinate across disciplines for hardware accountability
  • Ensure manufacturing and testing align with design specifications
  • Participate in qualification and modifications for future engine upgrades
  • Drive decision-making processes without bureaucratic hurdles

Benefits

  • Competitive salary and equity
  • Generous PTO and sick leave policy
  • Parental leave
  • Annual learning and development stipend
  • Transparent and fair compensation practices
Full Job Description
About the Team:

The Propulsion team at Relativity is focused on developing and delivering highly performant and manufacturable engines for Terran R. Engineers are responsible for 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, free from technical gatekeeping, where ownership and accountability are key at all levels. But designing engines with a quarter million pounds of thrust is just the beginning. As the flight configuration enters qualification, the team is now exploring modifications for future engines, including thrust upgrades, new cycles, and design for mass production.

About the role:

As a Responsible Engineer, you'll have cradle-to-grave ownership of your assigned component, from initial design through manufacturing, testing, qualification, and flight. This level of end-to-end ownership over combustion hardware is rare in the aerospace industry, where these responsibilities are typically distributed across multiple teams and organizations. Combustion devices are among the most thermally and structurally critical components in the engine, operating under extreme temperatures and pressures. The RE role provides technical ownership at the component level, requiring coordination across disciplines and direct accountability for hardware decisions throughout the entire product lifecycle.

About you:
  • Bachelor's degree in a science or engineering field
  • Experience working in the development of propulsion components, combustion components, or related hardware
  • Experience applying engineering fundamentals in thermodynamics, thermal, structural, and fluids

Nice to haves, but not required:
  • Experience in a rocket engine development and/or test environment
  • Clear evidence of ownership from school or work experience
  • Working knowledge of engine subsystems such as combustion devices, heat exchangers, ducting
  • Exposure to powder bed additive manufacturing and automation techniques


At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:

$90,000-$136,000 USD

About Relativity Space

Relativity Space is an American aerospace manufacturer that is developing 3D printed rockets. The company was founded in 2015 by Tim Ellis and Jordan Noone, and is headquartered in Los Angeles, California. Relativity Space's goal is to reduce the cost and time required to produce rockets by using 3D printing technology. The company's rockets are designed to be fully reusable, which could significantly reduce the cost of space launches. Relativity Space has received funding from a number of investors, including Mark Cuban and Playground Global.
Learn more about Relativity Space
Size
200 employees
Industry
Founded
2016

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