"thermal engineering" Jobs

264 open tech roles matching “thermal engineering”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Python, Mechanical Engineering, Electrical Engineering. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 264 results

SpaceX

Join SpaceX as a Senior Thermal Engineer to develop innovative cooling solutions for AI satellites in space.

SpaceX Bastrop, TX Published 3 weeks ago
AI-first team
Castelion
Castelion Rio Rancho, New Mexico, United States Published 4 months ago
SpaceX

Join SpaceX as a Senior Thermal Engineer to lead the thermal design and validation for Starship vehicles and hardware.

SpaceX Hawthorne, CA $130k–$180k/yr Published 3 months ago
Flexible on stack
Valar Atomics

Lead the design and operation of helium systems for next-generation high-temperature gas-cooled reactor technology at Valar Atomics.

Valar Atomics Torrance, California, United States $144k–$176k/yr Published 1 month ago
Helion

Join Helion as a Senior Multiphysics Modeling Engineer to develop and validate models for fusion hardware in a pioneering energy company.

Helion Everett, WA Published 6 months ago
Flexible on stack
Apex Space

Join Apex Space as a Senior Thermal Engineer to lead thermal design and performance for spacecraft from concept through flight.

Apex Space Los Angeles Published 3 days ago
Flexible on stack
Radiant

Join Radiant as a Senior Structures Engineer to design critical structures for portable nuclear microreactors in a fast-paced startup environment.

Radiant El Segundo, CA Published 1 month ago
K2 Space

Lead thermal modeling and simulation efforts for spacecraft in a high-growth satellite company.

K2 Space Los Angeles, CA $140k–$230k/yr Published 1 month ago
Apex Space

Join Apex Space as a Senior Thermal Engineer to develop spacecraft thermal models and drive innovation in aerospace systems.

Apex Space Los Angeles Published 10 months ago
Flexible on stack
Helion

Join Helion as a Senior Process Engineer to lead the design of the world's first continuous fusion fuel cycle in a pioneering energy company.

Helion Everett, WA Published 3 months ago
K2 Space

Join K2 Space as a Senior Mechanisms Engineer to design and integrate turbomachinery for high-power spacecraft systems.

K2 Space Los Angeles, CA $140k–$175k/yr Published 2 months ago
Inertia

Lead the design and analysis of critical components for the world's first fusion energy power plant at Inertia.

Inertia Livermore $125k–$225k/yr Published 6 months ago
Flexible on stack
Radiant

Join Radiant as a Senior Structural Engineer to design critical concrete structures for innovative nuclear microreactors.

Radiant El Segundo, CA Published 1 month ago
Radiant

Join Radiant as a Senior Civil Engineer to design concrete structures for innovative portable nuclear microreactors.

Radiant El Segundo, CA Published 4 weeks ago
Radiant

Join Radiant as a Senior Nuclear Engineer to lead modeling methods and reactor physics calculations for innovative nuclear microreactors.

Radiant El Segundo, CA Published 1 month ago
Flexible on stack
Radiant

Join Radiant as a Senior Power Electronics Engineer to design and develop power electronics for innovative nuclear microreactors.

Radiant El Segundo, CA Published 6 months ago
Rigetti Computing

Lead the mechanical architecture of quantum hardware systems, focusing on cryogenic design and collaboration with physicists and engineers.

Rigetti Computing Berkeley, CA Published 1 month ago
K2 Space

Join K2 Space as a Senior Mechanisms Engineer to design and deploy high-power turbopumps for advanced spacecraft thermal control systems.

K2 Space Los Angeles, CA $140k–$175k/yr Published 2 months ago
SpaceX

Join SpaceX as a Senior Thermal Engineer to develop thermal systems for AI satellites in space.

SpaceX Bastrop, TX Published 1 month ago
Radiant

Join Radiant as a Senior Stress Engineer to ensure structural integrity for the world's first portable nuclear microreactor.

Radiant El Segundo, CA Published 1 month ago