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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
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Rocket Lab USA
Spacecraft Mechanical Engineer II
Rocket Lab USA ·
California, U.S.
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Rocket Lab USA
Senior Spacecraft Mechanical Engineer I/II
Rocket Lab USA ·
California, U.S.
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Rocket Lab USA
Senior Spacecraft Mechanical Engineer I/II - TS/SCI
Rocket Lab USA ·
California, U.S.
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Anduril Industries
Mechanical Engineer, Propulsion
Anduril Industries ·
California, U.S.
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LVT
Mechanical Engineer Intern
LVT ·
Utah, U.S.
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Bright Machines
Senior Mechanical Engineer
Bright Machines ·
San Francisco, California, U.S.
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Astera Labs
Principal Package Thermal & Mechanical Engineer
Astera Labs ·
San Jose, California, U.S.
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True Anomaly
Mechanical Engineer, Missile Defense (Senior-Staff)
True Anomaly ·
Denver, Colorado, U.S.
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Antora Energy
Senior / Staff Mechanical Engineer, Fluid Systems
Antora Energy ·
San Jose, California, U.S.
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Anduril Industries
Senior Mechanical Engineer
Anduril Industries ·
Massachusetts, U.S.
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RC Mowers
Mechanical Engineer
RC Mowers ·
Wisconsin, U.S.
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True Anomaly
Mechanical Engineer, Tooling and MGSE (Senior - Staff)
True Anomaly ·
California, U.S.
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Anduril Industries
Staff Mechanical Engineer, Omen
Anduril Industries ·
California, U.S.
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Vast
Senior Mechanical Engineer, Thermal Control Systems
Vast ·
California, U.S.
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Whoop
Mechanical Engineer II (Continuous Improvement)
Whoop ·
Boston, Massachusetts, U.S.
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NuScale Power, LLC
Mechanical Engineer 4 (NSSS Component Analysis)
NuScale Power, LLC ·
U.S.
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NuScale Power, LLC
Contractor - Mechanical Engineer (NSSS Component Analysis)
NuScale Power, LLC ·
U.S.
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Vast
Mechanical Engineer I, Avionics, Haven
Vast ·
California, U.S.
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Varda Space Industries
Mechanical Engineering Internship - Fall 2026
Varda Space Industries ·
El Segundo, California, U.S.
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Cyngn
Senior Mechanical Engineer
Cyngn ·
Mountain View, California, U.S.
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