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    Summer 2027 Mechanical Engineering internships in California

    As of November 12, 2026, Intern Insider listed 89 open Summer 2027 Mechanical Engineering internships in California, from 55 companies. Employers include Tesla, Applied Materials and Stantec. None of these listings is marked remote. Browse the roles by employer below. You can read the full posting free, then apply in minutes with a free account.
    89 open roles · showing the 60 most relevant · 35 companies · 8 added this week
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    Tesla logoTesla10 open

    Applied Materials logoApplied Materials6 open

    Stantec logoStantec4 open

    AV logoAV2 open

    Fortive logoFortive2 open

    IMEG logoIMEG2 open

    Inversion logoInversion2 open

    Legence logoLegence2 open

    Lightmatter logoLightmatter2 open

    NASA - National Aeronautics and Space Administration logoNASA - National Aeronautics and Space Administration2 open

    Sidara logoSidara2 open

    Amca logoAmca1 open

    Arc logoArc1 open

    ASML logoASML1 open

    Astranis Space Technologies logoAstranis Space Technologies1 open

    Brown and Caldwell logoBrown and Caldwell1 open

    Constellation logoConstellation1 open

    Dispatch | YC P26 logoDispatch | YC P261 open

    DLR Group logoDLR Group1 open

    DoorDash logoDoorDash1 open

    DwyerOmega logoDwyerOmega1 open

    General Astronautics logoGeneral Astronautics1 open

    General Atomics logoGeneral Atomics1 open

    HNTB logoHNTB1 open

    Mettler-Toledo International, Inc logoMettler-Toledo International, Inc1 open

    Mott MacDonald logoMott MacDonald1 open

    Northrop Grumman logoNorthrop Grumman1 open

    Pivotal logoPivotal1 open

    Radiant logoRadiant1 open

    Rivian and Volkswagen Group Technologies logoRivian and Volkswagen Group Technologies1 open

    RTX logoRTX1 open

    Southern California Edison (SCE) logoSouthern California Edison (SCE)1 open

    Therma logoTherma1 open

    Voyager Technologies logoVoyager Technologies1 open

    Wing logoWing1 open

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    As of November 12, 2026, Intern Insider listed 89 open Summer 2027 Mechanical Engineering internships in California, from 55 companies.

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