# Principal Propulsion Engineer, Engine Systems & Test

Hiring organization: [Relativity Space](https://career.thegoodapps.co/organizations/relativity-space)

Canonical page: https://career.thegoodapps.co/jobs/e7f58a0c-01db-4a01-b5ed-0c6d7f727eaf

Listed on Relativity Space's own careers site. Applications go to them directly.

- Employment type: full time
- Seniority: Principal
- Location: Long Beach, CA
- Salary: 185000 – 277000 USD per year

## Summary

Lead the architecture and system-level design of advanced liquid-propellant rocket engines at a commercial spaceflight company developing a production orbital launch vehicle. This role suits experienced propulsion engineers who can drive technical trades across engine systems, manage cross-functional interfaces, and mentor teams while contributing deep technical expertise to solve novel challenges.

_Our summary, not Relativity Space's wording._

## Skills named

Fluid Mechanics, Requirements Management, Thermodynamics

## Required

- 11+ years of relevant engineering experience
- Bachelor's degree in science, engineering, technology, or mathematics
- Working knowledge of liquid-propellant rocket engines
- Demonstrated ownership and problem-solving in complex engineering projects
- Ability to lead collaborative projects with minimal oversight
- Fluency in fluid mechanics and thermodynamics fundamentals

## Nice to have

- Working knowledge of fluid components such as valves and instrumentation
- Working knowledge of engine subsystems such as combustion devices and turbomachinery

Apply on Relativity Space's site: https://boards.greenhouse.io/relativity/jobs/7845392002?gh_jid=7845392002