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Mechanical Engineer Jobs in United States

Discover the latest Mechanical Engineer jobs at the fastest growing startups in United States. Updated daily.

All jobs in United States All Mechanical Engineer jobs Other Engineering in United States
Anduril Industries
Senior Mechanical Engineer, Space
Anduril Industries ·
Massachusetts, U.S.
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Relativity
Staff Launch Mechanical Engineer
Relativity ·
Florida, U.S.
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Zipline
Senior Mechanical Engineer, Long Range Platform
Zipline ·
California, U.S.
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Charm Industrial
Mechanical Engineer II
Charm Industrial ·
Colorado, U.S.
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SpaceX
Mechanical Engineer (Starship)
SpaceX ·
Hawthorne, California, U.S.
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Seso inc.
Darby Pit - Mechanical Engineer I
Seso inc. ·
Idaho, U.S.
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True Anomaly
Mechanical Engineer, Missile Defense Tooling & MGSE Design (Senior - Staff)
True Anomaly ·
California, U.S.
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True Anomaly
Mechanical Engineer, Missile Defense (Senior - Staff)
True Anomaly ·
California, U.S.
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Commonwealth Fusion Systems
Mechanical Engineer – Cable Magnets
Commonwealth Fusion Systems ·
Massachusetts, U.S.
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Whoop
Senior Mechanical Engineer (Continuous Improvement)
Whoop ·
Boston, Massachusetts, U.S.
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Commonwealth Fusion Systems
Field Mechanical Engineering - Assembly
Commonwealth Fusion Systems ·
Massachusetts, U.S.
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Commonwealth Fusion Systems
Senior Field Mechanical Engineering - Assembly
Commonwealth Fusion Systems ·
Massachusetts, U.S.
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IonQ
Optomechanical Engineer
IonQ ·
Maryland, U.S.
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Anduril Industries
Senior Mechanical Engineer: Mechanisms, Space
Anduril Industries ·
California, U.S.
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Path Robotics
Mechanical Engineer – Sensing & Mobile Welding Robotics
Path Robotics ·
Columbus, Ohio, U.S.
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Commonwealth Fusion Systems
Principal Mechanical Engineer
Commonwealth Fusion Systems ·
California, U.S.
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Whoop
Senior Mechanical Engineer (Apparel & Accessories)
Whoop ·
Boston, Massachusetts, U.S.
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nLIGHT
Mechanical Engineering Intern (Summer 2026)
nLIGHT ·
Colorado, U.S.
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Avive Solutions Inc.
Mechanical Engineer
Avive Solutions Inc. ·
California, U.S.
Hybrid
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Seso inc.
O'Connor Crops & Cattle Mechanical Engineer I
Seso inc. ·
Montana, U.S.
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