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Jobs/Mechanical & Physical Systems/Energy & Climate

Mechanical & Physical Systems Jobs in Energy & Climate

Mechanical & Physical Systems roles at energy & climate companies building the future.

486 open roles · Updated 9/1/2026

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Staff Infrastructure Design Engineer

Crusoe EnergyEnergy & Climate

⚙️ Mechanical & Physical SystemsStaff / Principal

Remote

Sr. TPV Process Development Engineer

Antora EnergyEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Sunnyvale, CA

Senior Nuclear Methods Engineer

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Los Angeles, CA

Technical Illustrator/CAD Designer

Valar AtomicsEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Torrance, CA

Senior Mechanical Engineer (Vacuum Systems)

Avalanche EnergyEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Tukwila, WA

Fire Protection Engineer

Valar AtomicsEnergy & Climate

⚙️ Mechanical & Physical SystemsEntry-Level

Torrance, CA

Director, Nuclear Engineering

RadiantEnergy & Climate

⚙️ Mechanical & Physical SystemsDirector

El Segundo, CA

Plasma-Material Interaction (PMI) Manager)

Thea EnergyEnergy & Climate

⚙️ Mechanical & Physical SystemsManager

Kearny, NJ

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Mechanical & Physical SystemsEnergy & Climate

Mechanical Design Engineer

Pacific FusionEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Fremont, CA

Senior Mechanical Engineer - Vacuum Systems

Pacific FusionEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Fremont, CA

Principal Nuclear Engineer

RadiantEnergy & Climate

⚙️ Mechanical & Physical SystemsStaff / Principal

El Segundo, CA

Staff Structures Engineer

RadiantEnergy & Climate

⚙️ Mechanical & Physical SystemsStaff / Principal

El Segundo, CA

Senior Mechanical Design Engineer - Reactivity Controls

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Los Angeles, CA

Mechanical Design Engineer II - Reactivity Controls

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Los Angeles, CA

Materials & Process Engineer

General MatterEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Los Angeles, CA

Mechanical System Integration and Test Engineer

Heron PowerEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Scotts Valley, CA

Structural Analyst II

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Los Angeles, CA

Summer 2027 Internship - Architectural Engineering

General MatterEnergy & Climate

⚙️ Mechanical & Physical SystemsIntern

Los Angeles, CA

Senior Mechanical Engineer - Test Infrastructure

Pacific FusionEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

San Leandro, CA

Director of Fusion Nuclear Science

Xcimer EnergyEnergy & Climate

⚙️ Mechanical & Physical SystemsDirector

Denver, CO

Senior Mechanical Design Engineer (PCS)

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Los Angeles, CA

Thermal - Fluids Analyst I / II

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Los Angeles, CA

Process Engineer

Mariana MineralsEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Joaquin, TX

Mechanical Design Engineer II (PCS)

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsMid-Level

Los Angeles, CA

Turbomachinery Engineer

AntaresEnergy & Climate

⚙️ Mechanical & Physical SystemsSenior

Los Angeles, CA

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Frequently asked questions

How many mechanical & physical systems jobs are in energy & climate?: There are currently 486 open mechanical & physical systems roles at energy & climate companies on BuildList, refreshed hourly from company career pages.
What kinds of mechanical & physical systems roles do energy & climate companies offer?: The openings span companies at different stages and experience levels. Use the remaining filters to narrow the live list by location, seniority, and company stage.
Can I find remote mechanical & physical systems jobs in energy & climate?: Yes. Use the location filter to isolate remote openings within this sector, then check each listing for country or regional restrictions.
How do I apply for mechanical & physical systems jobs in energy & climate?: Every listing links straight to the company's own application page — BuildList doesn't sit between you and the employer, so there's no account or middleman.