Mechanical engineering internships and new grad jobs in California

Open mechanical, design, and reliability engineering roles for students and new grads in California.

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ShowingMechanical, California
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Roles 1–95 of 305, newest first

CompanyRoleTypeLocationIndustryPayAge
AMD2027 Masters Thermal Engineering Intern/Co-OpInternshipSanta Clara, CA · On-siteSemiconductors—
MetaMechanical Engineering InternInternshipMenlo Park, CA · On-siteConsumer apps—
Applied Materials2027 Summer Intern - Mechanical Engineer - PhD, (Santa Clara)InternshipSanta Clara, CA · On-siteSemiconductors—
Applied Materials2027 Summer Intern - Mechanical Engineer - BS/MS Degree, (Santa Clara)InternshipSanta Clara, CA · On-siteSemiconductors—
Austin Community College DistrictCAD Intern (Hourly)InternshipHighland, CA · On-siteEducation$23/hr
Hewlett Packard EnterpriseThermal Engineering InternInternshipSunnyvale, CA · On-siteDeveloper tools$35–41/hr
TeslaInternship, Mechanical Design, Robotaxi Service Tooling (Winter/Spring 2027)InternshipFremont, CA · On-siteAutomotive—
Lawrence Livermore National LaboratoryDefense Technologies Engineering Division (DTED): Undergraduate Intern - Summer 2027InternshipLivermore, CA · On-siteAerospace & Defense$23–32/hr
Lawrence Livermore National LaboratoryDefense Technologies Engineering Division (DTED): Design Undergraduate Intern - Summer 2027InternshipLivermore, CA · On-siteAerospace & Defense$23–32/hr
StandardAeroCo-Op EngineerCo-opRichmond, Canada +1 · On-siteAerospace & Defense—
AeroVironment, Inc.Mechanical Engineering InternInternshipPetaluma, CA · On-siteAerospace & Defense—
Weed Instrument Company, Inc.Analysis Engineering InternInternshipBrea, CA · On-siteAerospace & Defense$25/hr
Arc Boat CompanyMechanical Engineering Intern - RecreationalInternshipTorrance, CA · On-siteRobotics$36/hr
F5, Inc.Mechanical Engineer INew gradSan Jose, CA · On-siteCybersecurity$93–139k/yr
The Aerospace Corporation2027 Radiation Effects Undergraduate InternInternshipEl Segundo, CA · On-siteAerospace & Defense—
The Aerospace Corporation2027 Radiation Effects Graduate InternInternshipEl Segundo, CA · On-siteAerospace & Defense—
L3Harris TechnologiesIntern, Mechanical EngineerInternshipCarlsbad, CA · On-siteAerospace & Defense$26–48/hr
Anduril IndustriesWinter 2027 Reliability Engineer Co-opCo-opCosta Mesa, CA · On-siteAerospace & Defense$40–48/hr
Anduril Industries2027 Reliability Engineer InternInternshipCosta Mesa, CA · On-siteAerospace & Defense$28–40/hr
GrayMatter RoboticsMechanical Design Intern - Immediate FillInternshipLos Angeles, CA · On-siteRobotics$20–35/hr
Triumph ArcadeEarly Career Mechanical EngineerNew gradMountain View, CA · On-siteGaming$105–145k/yr
PTI Technologies Inc.Design Engineer INew gradOxnard, CA · On-siteAerospace & Defense—
Arc Boat CompanyMechanical Engineering Intern - PowertrainInternshipTorrance, CA · On-siteRobotics$36/hr
MetaMechanical Engineering Intern, InfrastructureInternshipMenlo Park, CA · On-siteConsumer apps—
RoboForceRobotics Mechanical Engineering Intern (Fall/Winter 2026)InternshipMilpitas, CA · On-siteRobotics—
CoStar GroupMechanical Engineering InternInternshipSunnyvale, CA · On-siteConstruction$40–45/hr
CoStar GroupAssociate Mechanical EngineerNew gradSunnyvale, CA · On-siteConstruction$85–110k/yr
SeasatsMechanical Engineering Intern - Spring 2027InternshipSan Diego, CA · On-siteAerospace & Defense$30/hr
L3Harris TechnologiesAssociate, Mechanical EngineerNew gradCanoga Park, CA · On-siteAerospace & Defense$68–126k/yr
L3Harris TechnologiesIntern, Mechanical EngineeringInternshipCarlsbad, CA · On-siteAerospace & Defense$26/hr
DLR GroupMechanical Engineering Intern | Summer 2027InternshipLos Angeles, CA · On-siteConstruction$20–26/hr
CiscoMechanical Engineer I (Intern) - United StatesInternshipSan Jose, CA · On-siteTelecom$44–185k/yr
Hormel Foods Family of CompaniesASSOCIATE DESIGN ENGINEER – CORPORATE ENGINEERING (HAYWARD, MN) CAMPUS RECRUITINGNew gradHayward, CA · On-siteAgriculture & Food—
ANDRITZ AGMechanical engineering design internshipInternshipUnited States · On-siteEnergy—
Varda Space IndustriesThermal Engineering Internship - Summer 2027InternshipEl Segundo, CA · On-siteAerospace & Defense$33/hr
Varda Space IndustriesMechanisms & Payload Internship - Summer 2027InternshipEl Segundo, CA · On-siteAerospace & Defense$33/hr
Singularity Defense Corp.Mechanical Engineer - Co-opCo-opGardena, CA · On-siteAerospace & Defense—
Base Power CompanyMechanical Engineering InternInternshipAustin, TX +1 · On-siteRobotics—
Muon SpaceThermal Engineering Intern (Summer 2027)InternshipSan Jose, CA · On-siteAerospace & Defense$40/hr
Empirical Systems Aerospace, Inc.Engineering InternshipInternshipSan Luis Obispo, CA · On-siteAerospace & Defense$20–25/hr
TeslaInternship, Mechanical Design Engineer, Energy Infrastructure Power Electronics, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
AMD2027 Undergrad Thermal Engineering Intern/Co-OpInternshipSanta Clara, CA · On-siteSemiconductors—
TeslaInternship, Thermal Design Engineer, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
TeslaInternship, Thermofluids Analyst Engineer, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
Rocket LabSpacecraft Thermal Engineer INew gradLong Beach, CA · On-siteAerospace & Defense$83–114k/yr
Voyager Technologies2027 Mechanical Engineering Intern InternshipLong Beach, CA · On-siteAerospace & Defense—
TeslaInternship, Actuator Mechanical Design Engineer, Optimus (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
TeslaInternship, Robotics Thermal Design Engineer, Optimus (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
MantariMechanical Engineer InternInternshipTorrance, CA · On-siteAerospace & Defense—
Rocket LabMechanical Engineer I (Future Grad 2027)New gradLong Beach, CA · On-siteAerospace & Defense$82–113k/yr
AstranisThermal Intern (Winter 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisThermal Intern (Summer 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisThermal Associate Engineer (Winter 2027)New gradSan Francisco, CA · On-siteAerospace & Defense$1,925 / wk
AstranisThermal Associate Engineer (Summer 2027)New gradSan Francisco, CA · On-siteAerospace & Defense$1,925 / wk
iRhythm TechnologiesMechanical Engineering Co-op Full Time Intern Jan - June 2027InternshipSan Francisco, CA · On-siteRobotics—
Celestica International LPStudent Intern, Design EngineeringInternshipSan Jose, CA · On-siteAerospace & Defense$24–30/hr
MillProduct Design Engineering Intern, Summer 2027InternshipSan Bruno, CA · On-siteRobotics$35–45/hr
Bracket Bot Inc.Advanced 3D Printing Mechanical Engineering InternInternshipSan Francisco, CA · On-siteRobotics—
TeslaInternship, Robotics Mechanical Design Engineer, Optimus (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
Leprino Foods CompanyLEW Engineering InternInternshipLemoore, CA · On-siteAgriculture & Food—
Oklo Inc.General Internship Application 2026-2027InternshipSanta Clara, CA · On-siteEnergy$35–44/hr
AstranisReliability Test Intern (Winter 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisReliability Test Intern (Summer 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisElectrical Reliability Intern (Winter 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisElectrical Reliability Intern (Summer 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
AstranisElectrical Reliability Associate (Winter 2027)New gradSan Francisco, CA · On-siteAerospace & Defense$1,925 / wk
AstranisElectrical Reliability Associate (Summer 2027)New gradSan Francisco, CA · On-siteAerospace & Defense$1,925 / wk
L3Harris TechnologiesAssociate, Mechanical EngineeringNew gradCanoga Park, CA · On-siteAerospace & Defense$68–126k/yr
L3Harris TechnologiesIntern, Mechanical Engineer 1InternshipCanoga Park, CA · On-siteAerospace & Defense$26–48/hr
L3Harris TechnologiesMechanical Design Engineering InternInternshipCanoga Park, CA · On-siteAerospace & Defense$25/hr
TeslaInternship, Mechanical Design Engineer, Vehicle Power Electronics, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
Murata AmericasIntern, NPI Packaging Engineer - Fall 2026InternshipSan Diego, CA · On-siteSemiconductors—
Hewlett Packard EnterpriseMechanical Hardware Engineer I GraduateNew gradSunnyvale, CA · On-siteDeveloper tools$69–126k/yr
MattelProduct Development Engineer I - DollsNew gradEl Segundo, CA · On-siteRetail & Consumer Goods$71–82k/yr
Vital LyfeMechanical Engineering Internship - Spring 2026InternshipLos Angeles, CA · On-siteEnergy$30–33/hr
IMEG CorpMechanical Engineering Intern | Anaheim, CAInternshipAnaheim, CA · On-siteConstruction$22–24/hr
TeslaInternship, Reliability Test Engineer, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
Elkay Plumbing Products Co.Mechanical Engineering Intern (Summer 2027)InternshipPaso Robles, CA · On-siteIndustrial$20–25/hr
AeroVironment, Inc.Mechanical Engineer INew gradMoorpark, CA · On-siteAerospace & Defense$67–102k/yr
Rocket LabThermal Engineering Intern Summer 2027InternshipLong Beach, CA · On-siteAerospace & Defense$28/hr
Rocket LabThermal Engineering Intern Spring 2027InternshipLong Beach, CA · On-siteAerospace & Defense$28/hr
Ventura Coastal, LLCFinished Product Packaging Operator - Shift 2nd (73812)New gradVisalia, CA · On-siteAgriculture & Food$24/hr
RTX CorporationMechanical Engineer I (Onsite)New gradFullerton, CA · On-siteAerospace & Defense—
AstranisProduction Quality Intern (Summer 2027)InternshipSan Francisco, CA · On-siteAerospace & Defense$29/hr
The Wonderful CompanyFood Scientist INew gradUnited States · On-siteAgriculture & Food$73–80k/yr
FMI AerostructuresNC Programming Intern - Part timeInternshipUnited States · On-siteAerospace & Defense—
TeslaInternship, Reliability Electronics Design Engineer, Energy Engineering (Winter/Spring 2027)InternshipPalo Alto, CA · On-siteAutomotive—
Winners Merchants International, L.P.Merchandise AssociateNew gradNovato, CA · On-siteRetail & Consumer Goods$18/hr
Qualcomm IncorporatedMechanical Engineering Internship – Summer 2027InternshipSan Diego, CA · On-siteSemiconductors—
1XInternship - CNC Machine ParkInternshipHayward, CA · On-siteRobotics$28/hr
Winners Merchants International, L.P.Merchandising AssociateNew gradBakersfield, CA · On-siteRetail & Consumer Goods$17/hr
QualcommMechanical Engineering Internship – Summer 2027InternshipSan Diego, TX +2 · On-siteSemiconductors—
Rocket LabHarness Design Engineer INew gradLong Beach, CA · On-siteAerospace & Defense$82–103k/yr
Wood RodgersAssistant EngineerNew gradOrange, CA · On-siteConstruction$32–42/hr
TeslaInternship, Mechanical Engineer, Cell Engineering (Winter/Spring 2027)InternshipFremont, CA · On-siteAutomotive—