relativity

Senior Thermal Analyst, Propulsion

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At a Glance

Location
Long Beach, California, United States
Experience
5+ years
Posted
2026-03-06T20:01:13-05:00

Key Requirements

Domain Knowledge

  • Aerospace
  • Engineering

Requirements

Bachelor's degree in a science, engineering, technology, or mathematics field

5+ years of relevant engineering experience

Experience with Finite Element Analysis

Experience with computer aided design (CAD) software

Able to work completely independently, balancing multiple deliverables with competing priority and deadlines

Experience with defining thermal and fluid instrumentation suites for tests

Compensation & Benefits

$148,500

$181,500 USD

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.

If you need a reasonable accommodation, please contact us at

accommodations@relativityspace.com

Responsibilities

Responsible for the thermal analyses on Aeon-R engines to guide design decisions and ensure reliability and performance requirements are met

Responsible for the analysis of 3D-printed engine components, complex mechanical assemblies, and/or the thermal integrity of the fully integrated engine assembly.

Work hand-in-hand with mechanical designers, manufacturing engineers, and junior thermal analysts to arrive at optimal solutions for the engine and vehicle programs

Develop and execute tests to support development and qualification, including hands-on work like test article integration, instrumentation setup, and data processing

Guide the advancement of the Propulsion department’s thermal analysis discipline by development of best practices, standards documents, and the training and mentorship of others

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.