Principal Propulsion Engineer

  • Full Time
  • USA
  • Posted 3 weeks ago
  • Salary: $190,000—$249,000 USD

Company Details

Building humanity’s multiplanetary future.

Company Overview: 

Relativity is the first and only company to automate aerospace manufacturing by integrating intelligent robotics, software, and proprietary metal 3D printing technology. Disrupting 60 years of aerospace, Relativity offers a radically simplified supply chain, building a rocket with 100x fewer parts in less than 60 days. Our long-term goal is to upgrade humanity’s industrial base on Earth and on Mars.


Relativity seeks a highly talented Principal Propulsion Engineer to join a rapidly growing space startup. The area of influence of this role spans the full range of engine development activities and also involves frequent interfacing with other vehicle engineering departments. This position will provide outstanding leadership and technical contribution to the development of the Terran R launch vehicle, as well as helping to build a world-class team.

What you’ll do:

You will help drive the overall engine architecture for a clean sheet, fully reusable, 258,000lb thrust additively manufactured liquid propulsion engine (Aeon-R), plus all future engine programs. In order to be successful in this role, you should be self-motivated, adaptable and able to contribute significantly to a fast-paced, propulsion development program. You should also be able to resolve ambiguity and drive projects to completion. A high degree of drive and autonomy is required. You must be flexible to changes in strategic direction and willing to go the extra mile to ensure we as a company are producing the best possible product. Along with these high expectations comes the opportunity to have a significant influence on a fast-growing startup company and to oversee rapid progress in an environment that encourages growth and risk.

What you need to know:

  • Bachelor’s degree or higher in an engineering discipline
  • 8+ years of experience in propulsion system testing or development
  • Demonstrated success in developing a liquid pump fed rocket engine from conceptual design through qualification and production unit acceptance testing
  • History of taking an aerospace product from concept to production

Nice to haves but not required: 

  • Advanced degree in Engineering
  • Substantial hands on experience with propulsion systems and components
  • Knowledge of liquid rocket engine design and test specifications
  • Deep understanding of thermodynamics, compressible and incompressible flow, thermochemistry mechanics, structural design in demanding environments, design for additive manufacturing, and/or materials

Relativity Space offers competitive salary and equity, a generous vacation policy, an annual L&D stipend and more! 

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

The below-range represents Relativity Space’s current good-faith pay scale for this role.  Relativity Space reserves the right to modify or update this range at any time.

Tagged as: management, fluids, vehicle program, aeon-r engine, terran 1, terran r

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