Thermal Engineer I - Shape Next-Gen Rockets (Equity)

Relativity Space; Long Beach (CA); On-site; USD 90,000 - 136,000; Full time

Job summary

Relativity Space in Long Beach is advancing the Terran R program and broader thermal design across propulsion, manufacturing, and avionics. The role focuses on architecture, sizing, and validation of thermal systems, and on developing automation for analyses and testing.

You will guide design and development engineers, create test plans, and analyze data from component to vehicle levels, enabling reliable flight hardware and streamlined integration.

Qualifications

• Bachelor's degree in engineering or related field.
• Internship or university collaboration experience.
• Strong fundamentals in heat transfer and thermal analysis.
• Hands-on testing, instrumentation, and data analysis.
• Experience with MATLAB or Python scripting.

Responsibilities

• Drive architecture, sizing, and development of thermal systems.
• Build, execute, and validate thermal analyses at multiple levels.
• Guide engineers in applying thermal sciences to requirements.
• Develop and execute tests for thermal systems development and qualification.
• Support vehicle and engine thermal systems development and testing.

Skills

Heat transfer

Thermal analysis

Test plans & testing

Instrumentation & data analysis

MATLAB / Python scripting

Internship experience

Education

Bachelor's degree in Engineering or related field

Tools

Sinda

Fluint

Thermal Desktop

Job description

Relativity Space in Long Beach is advancing the Terran R program and broader thermal design across propulsion, manufacturing, and avionics. The role focuses on architecture, sizing, and validation of thermal systems, and on developing automation for analyses and testing.

You will guide design and development engineers, create test plans, and analyze data from component to vehicle levels, enabling reliable flight hardware and streamlined integration.