"thermal performance" Jobs

219 open tech roles matching “thermal performance”, 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 219 results

Radiant

Join Radiant as a Senior Mechanical Engineer to design and analyze turbomachinery for innovative portable nuclear microreactors.

Radiant El Segundo, CA Published 11 months ago
Valar Atomics

Lead system-level thermal-hydraulics modeling for advanced nuclear power systems at a pioneering energy startup.

Valar Atomics Torrance, CA $151k–$185k/yr Published 1 month ago
Flexible on stack
Radiant

Join Radiant as a Senior Mechanical Engineer to lead the design of critical fluid systems for innovative portable nuclear microreactors.

Radiant El Segundo, CA Published 3 months 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
Radiant

Lead thermal-hydraulics analysis for a groundbreaking portable nuclear microreactor at a fast-paced startup.

Radiant El Segundo, CA Published 1 month ago
Radiant

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

Radiant El Segundo, CA Published 1 month ago
Echodyne

Join Echodyne as a Senior Mechanical Engineer to design cutting-edge radar technology for various industries.

Echodyne Kirkland, WA $124.7k–$187.0k/yr Published 1 month ago
Helion

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

Helion Everett, WA Published 4 months ago
Astro Mechanica

Join Astro Mechanica as a Senior Propulsion Engineer to lead the design of combustion devices for advanced aerospace propulsion systems.

Astro Mechanica San Francisco Published 3 months ago
Astro Mechanica

Join Astro Mechanica as a Senior Combustion Devices Engineer to lead the design of advanced propulsion systems for supersonic travel.

Astro Mechanica San Francisco Published 4 months ago
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
SpaceX

Join SpaceX as a Sr. Propulsion Fluids Analyst to drive design decisions for advanced rocket engine hardware through fluids and thermal analyses.

SpaceX Hawthorne, CA $135k–$190k/yr Published 2 months ago
Flexible on stack
Varda Space

Join Varda as a Senior Thermal Analysis Engineer to develop thermal systems for spacecraft in a fast-paced, innovative environment.

Varda Space El Segundo, California, United States $140.3k–$179.3k/yr Published 2 months ago
Heron Power

Join Heron Power as a Senior Hardware Applications Engineer to lead application-specific testing of innovative power electronics solutions.

Heron Power Scotts Valley $130k–$160k/yr Published 1 day ago
Flexible on stack
Heron Power

Own application-specific testing of Heron's solid state transformer for energy storage applications in a collaborative startup environment.

Heron Power Scotts Valley $130k–$160k/yr Published 1 day 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
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
Radiant

Join Radiant as a Senior Engineering Technician to fabricate and assemble innovative portable nuclear microreactors in a dynamic startup environment.

Radiant El Segundo, CA Published 1 month ago
SpaceX

Lead sourcing strategy and supplier management for server mechanicals and cooling at SpaceX, driving innovation and cost efficiency.

SpaceX Austin, TX Published 1 week ago
Apex Space

Join Apex as a Senior Space Simulation Test Engineer to ensure the reliability of spacecraft through environmental testing.

Apex Space Los Angeles Published 1 week ago