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Radiant

Thermal Modeling Engineer - 2026 New Graduate

El Segundo, CA, USA

USD 105k-125k / year + Equity

2 days
Entry Level
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Efficiency
Energy Production
Energy Services
Energy & Utilities
Nuclear Electric Power Generation
Renewable Energy
Sustainability
Read more
about Thermal Modeling Engineer - 2026 New Graduate at Radiant
Radiant

Thermal Modeling Engineer

El Segundo, CA, USA

USD 107,500-150k / year + Equity

3 days
Mid-Senior Level
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Efficiency
Energy Production
Energy Services
Energy & Utilities
Nuclear Electric Power Generation
Renewable Energy
Sustainability
Read more
about Thermal Modeling Engineer at Radiant
Cache Energy

TES (Thermal Energy Storage) Mechanical Engineer

Champaign, IL, USA
9 days
Seed
Mid-Senior Level
Alternative Energy Equipment
Electrical Distribution
Energy
Energy Storage
Other Equipment
Power Grid
Renewable Energy Semiconductor Manufacturing
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about TES (Thermal Energy Storage) Mechanical Engineer at Cache Energy
Castelion

Senior Mechanical Design Engineer (Structures & Thermal Protection Integration)

rio rancho, nm, usa
17 days
Series B
Senior
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Senior Mechanical Design Engineer (Structures & Thermal Protection Integration) at Castelion
Castelion

Senior Thermal & TPS Integration Engineer

rio rancho, nm, usa
17 days
Series B
Senior
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Senior Thermal & TPS Integration Engineer at Castelion
Astranis

Thermal Engineer Intern (Fall 2026)

San Francisco, CA, USA

USD 29-29 / hour

18 days
Internship
Aerospace
Aerospace & Defense
Communication Equipment
Connectivity
Defense & Space
Hardware
Internet
Internet Services
Mobile & Telecommunications
Other Communications and Networking
Satellite
Satellite Communication
Science and Engineering
Space Research and Technology
Technology
Telecommunications
Telecommunications Service Providers
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about Thermal Engineer Intern (Fall 2026) at Astranis
Astranis

Thermal Associate Engineer (Fall 2026)

San Francisco, CA, USA
18 days
Associate
Aerospace
Aerospace & Defense
Communication Equipment
Connectivity
Defense & Space
Hardware
Internet
Internet Services
Mobile & Telecommunications
Other Communications and Networking
Satellite
Satellite Communication
Science and Engineering
Space Research and Technology
Technology
Telecommunications
Telecommunications Service Providers
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about Thermal Associate Engineer (Fall 2026) at Astranis
Venus Aerospace

Sr. Propulsion Engineer

Houston, TX, USA
4 days
Senior
Aerospace
Aerospace & Defense
Aviation
Aviation and Aerospace Component Manufacturing
Data & Analytics
Design
Engines
Manufacturing & Industrial
Product Research
Science and Engineering
Transportation
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about Sr. Propulsion Engineer at Venus Aerospace
Apex

Senior Mechanical Engineer (Propulsion)

Los Angeles, CA, USA

USD 150k-187k / year + Equity

16 days
Senior
Aerospace
Aerospace & Defense
Commercial
Defense and Space Manufacturing
Defense & Space
Manufacturing
Manufacturing & Industrial
Satellite
Science and Engineering
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about Senior Mechanical Engineer (Propulsion) at Apex
Castelion

Senior Mechanisms Engineer (TVC Actuation)

rio rancho, nm, usa
17 days
Series B
Senior
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Senior Mechanisms Engineer (TVC Actuation) at Castelion
Castelion

Senior Mechanical Design Engineer (ACS Systems)

rio rancho, nm, usa
17 days
Series B
Senior
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Senior Mechanical Design Engineer (ACS Systems) at Castelion
Castelion

Senior Mechanical Design Engineer (RF Systems & Radomes)

rio rancho, nm, usa
17 days
Series B
Senior
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Senior Mechanical Design Engineer (RF Systems & Radomes) at Castelion
Castelion

Materials Engineer - High Temperature Composites

torrance, ca, usa
3 days
Series B
Entry Level
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Materials Engineer - High Temperature Composites at Castelion
Castelion

Materials Engineer - High Temperature Composites

torrance, ca, usa
9 days
Series B
Entry Level
Aerospace
Aerospace & Defense
Defense
Defense and Space Manufacturing
Defense & Space
Electronics
Engines
Government
Government and Military
Industrial Automation
Manufacturing
Manufacturing & Industrial
Military
National Security
Science and Engineering
Read more
about Materials Engineer - High Temperature Composites at Castelion
Cache Energy

Materials Performance Engineer

Champaign, IL, USA
9 days
Seed
Mid-Senior Level
Alternative Energy Equipment
Electrical Distribution
Energy
Energy Storage
Other Equipment
Power Grid
Renewable Energy Semiconductor Manufacturing
Read more
about Materials Performance Engineer at Cache Energy
Apex

Spacecraft Mechanisms and Actuators Engineer

Los Angeles, CA, USA

USD 120k-190k / year + Equity

10 days
Mid-Senior Level
Aerospace
Aerospace & Defense
Commercial
Defense and Space Manufacturing
Defense & Space
Manufacturing
Manufacturing & Industrial
Satellite
Science and Engineering
Read more
about Spacecraft Mechanisms and Actuators Engineer at Apex
Apex

RF Test Engineer

Los Angeles, CA, USA

USD 128k-177k / year + Equity

10 days
Mid-Senior Level
Aerospace
Aerospace & Defense
Commercial
Defense and Space Manufacturing
Defense & Space
Manufacturing
Manufacturing & Industrial
Satellite
Science and Engineering
Read more
about RF Test Engineer at Apex
Radiant

Senior Mechanical Engineer, Fluid Systems

El Segundo, CA, USA

USD 158k-219,450 / year + Equity

10 days
Senior
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Efficiency
Energy Production
Energy Services
Energy & Utilities
Nuclear Electric Power Generation
Renewable Energy
Sustainability
Read more
about Senior Mechanical Engineer, Fluid Systems at Radiant
Radiant

Staff Mechanical Engineer, Fluid Systems

El Segundo, CA, USA

USD 200,500-314,475 / year + Equity

10 days
Senior
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Efficiency
Energy Production
Energy Services
Energy & Utilities
Nuclear Electric Power Generation
Renewable Energy
Sustainability
Read more
about Staff Mechanical Engineer, Fluid Systems at Radiant
Radiant

Mechanical Professional Engineer (PE)

El Segundo, CA, USA

USD 158k-219,450 / year + Equity

10 days
Senior
Alternative Energy Equipment
Clean Energy
Cleantech
Energy
Energy Efficiency
Energy Production
Energy Services
Energy & Utilities
Nuclear Electric Power Generation
Renewable Energy
Sustainability
Read more
about Mechanical Professional Engineer (PE) at Radiant