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Thermal Engineer I

Relativity Space is developing reusable launch vehicles and Terran R to meet growing orbital payload demand. The Thermal Engineer I will contribute to thermal architecture, analysis, test, and integration across component, subsystem, and vehicle levels, collaborating closely with hardware and multidisciplinary teams to enable flight-ready systems.

Skills

  • Proficiency in thermal and fluids analysis at component and system levels using tools like Sinda/Fluint/Thermal Desktop or commercial FEM/FVM/FDM solvers.
  • Hands-on test experience: test plans, instrumentation, data acquisition, and post-test analysis.
  • Experience solving multidisciplinary problems on integrated vehicles and working with cross-functional teams.
  • Familiarity with scripting for analysis automation (MATLAB or Python).
  • Strong fundamentals in thermodynamics and heat transfer (conduction, convection, radiation).

Responsibilities

  • Drive architecture, sizing, and development of thermal systems (insulation, heaters, TPS, environmental conditioning).
  • Build, execute, automate, and validate thermal analyses at component, subsystem, and vehicle levels.
  • Provide technical direction to design and development engineers on thermal application and requirements compliance.
  • Develop and execute thermal test plans, perform test article integration, instrumentation setup, and data processing.
  • Support vehicle and engine thermal system development, stage testing, and flight operations.

Education

  • Undergraduate degree in engineering or a related field (required).
  • Graduate degree in engineering or related field (preferred but not required).

Benefits

  • Competitive salary and equity
  • Generous PTO and sick leave policy
  • Parental leave
  • Annual learning and development stipend
  • Additional company benefits and perks (see company benefits page)
To read the complete job description, please click on the ‘Apply’ button
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CEO of Relativity Space
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Average salary estimate

$110650 / YEARLY (est.)
min
max
$97000K
$124300K

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We are building the future of aerospace. A rocket company at the core, Relativity Space is on a mission to become the next great commercial launch company. Terran R, our medium-to-heavy lift reusable launch vehicle, will reliably deliver payloads...

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DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$97,000/yr - $124,300/yr
EMPLOYMENT TYPE
Full-time, onsite
DATE POSTED
August 26, 2025
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