Senior Propulsion Simulation Engineer

Relativity Space

Relativity Space

1,001-5,000 employees

Manufactures and launches 3D printed reusable rockets

Robotics & Automation
AI & Machine Learning

$159,000 - $204,000

Equity, L&D stipend


Long Beach, CA, USA

Required Skills
  • Experience applying engineering fundamentals in fluid mechanics & thermodynamics
  • Experience with Python and C++
  • Experience building and applying physics-based simulations, ideally involving fluid mechanics
  • Experience with ownership, problem-solving skills, and effective team collaboration
  • Experience delivering on ambitious schedules, even and especially if unconventional & creative solutions are necessary to do so
  • Bachelor’s degree in a science, engineering, technology, or mathematics field
  • 5+ years relevant experience, preferably working with simulation tooling in a complex engineering environment
  • Build and apply thermo-fluids simulation tools to model various systems across the Aeon engine
  • Support engine test campaigns, trade studies, component design, test data review, engine sequences, and operating condition & performance prediction/tuning
  • Identify weaknesses in simulation tools and post-process engine test data to improve understanding/modeling of engine systems
  • Take ownership of projects to increase collective efficiency
  • Collaborate with partner teams and perform responsibilities with minimal oversight
  • Be a self-starter looking for ways to improve and learn more about the system and others that interface with it
  • Average of 15% travel to test & launch sites, and occasional shifted schedules or weekend work for critical milestones

Relativity Space is a pioneering force in the commercial launch industry, utilizing 3D printing technology to create reusable rockets that meet the increasing demand for space infrastructure. Their successful launch of Terran 1, the world's largest 3D printed object, has proven the viability of their manufacturing approach and paved the way for the development of Terran R, their medium-to-heavy lift reusable rocket. With a culture of continuous iteration and a focus on reducing vehicle complexity and cost, Relativity Space is leading the industry in the application of additive manufacturing to aerospace design and production.

Company Stage

Series F

Total Funding



Long Beach, California



Growth & Insights

6 month growth


1 year growth


2 year growth



Health, dental & vision coverage

Wellness stipend



11 company holidays

Generous PTO policy

Monthly lunches, game nights, & offsite events

Parental leave

Annual learning stipend