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156 intern engineer jobs at 94 companies in Simi Valley, CA

1mo
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Engineer intern
Simi Valley, California, United States
OnsiteMultiple Commitments Available
M Wave Design
M Wave Design: Designs and manufactures passive RF and microwave components.
Currently enrolled in an engineering or science program (BSME/BSEE in process or equivalent), US person required, ability to work with technical drawings, basic CAD (SolidWorks/AutoCAD) exposure, strong communication and teamwork skills.
SolidWorks, AutoCAD
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2mo
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Manufacturing Engineer Intern
Cerritos, California, United States
$25/hr OnsiteInternship
Amphenol CIT
Amphenol CITNYSE: APH: Designs and manufactures high-performance wire, cable, and interconnect solutions.
0+ YOE0-1 years engineering/CI experience; Lean/manufacturing knowledge; EHS awareness; Bachelor's in Engineering; strong communication; MS Office and Minitab skills.
MS Office, Minitab
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Manufacturing Engineer Intern
South Gate, California, United States
OnsiteFull Time
Precision Castparts Corp.
Precision Castparts Corp.NYSE: BRK.B: Manufacturer of complex metal components for aerospace and industrial markets.
0+ YOEInternship requiring full-time 40h/wk or part-time 20h/wk; strong math, analytical, problem-solving, communication; MS Office; ability to read technical documents; team collaboration.
Microsoft Office
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1w
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Manufacturing Engineer Intern
Santa Fe Springs, California, United States
$20/hr OnsitePart Time
RD Rubber Technology Corporation
RD Rubber Technology Corporation: Manufacturer of custom precision molded rubber components.
Internship requiring familiarity with engineering calculations, CAD modeling, prototyping, manufacturing processes, and the ability to prepare reports and support continuous improvement projects; hands-on manufacturing experience preferred.
CAD
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2mo
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ENGINEERING INTERN
Torrance, California, United States
$25/hr OnsiteFull Time, Internship
LISI Aerospace
LISI AerospaceEuronext Paris: FII: Manufactures high-performance fasteners and metal components for aircraft.
0+ YOEPursuing a Bachelor’s in Mechanical or Manufacturing Engineering; 0-1 year in manufacturing engineering; CAD proficiency; working knowledge of engineering applications.
CAD, SolidWorks, AutoCAD, M3, LINKS
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Engineering Intern
Los Angeles, California, United States
$22-$25/hr OnsiteFull Time
DCX-CHOL Enterprises
DCX-CHOL Enterprises: Designs and manufactures electrical interconnect systems for harsh environments.
0+ YOERecent engineering graduate with BS in engineering; familiarity with GD&T, manufacturing and interpreting drawings; Microsoft Office skills; interest in electromechanical manufacturing.
Geometric Dimensioning and Tolerance (GD&T), Microsoft Word, Microsoft Excel, Microsoft Visio, Microsoft PowerPoint, Adobe Acrobat PDF, MRP
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2mo
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Project Engineer Intern - Summer 2027
Sacramento or Oakland or Commerce or San Diego or Goodyear or Manassas
$21-$28/hr OnsiteFull Time
Helix Electric
Helix Electric: Provides electrical contracting and design-build services for complex projects.
Enrolled in a bachelor’s degree program; construction or engineering focus; internship or related experience preferred; strong communication, math, and organizational skills.
BIM, Accubid, Excel, AutoCAD, Microsoft Office
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Engineering intern
Chatsworth, California, United States
$22-$25/hr OnsiteInternship
HBK
HBKLondon Stock Exchange: SXS: Sells precision sensors and integrated test and measurement systems.
3+ YOETechnical college degree (or equivalent) with related engineering experience; BS in Mechanical or Electrical Engineering; ASQ a plus; proficient in MS Office; strong communication; local candidate.
SolidWorks, LabVIEW, Microsoft Excel, Microsoft Word
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1mo
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Manufacturing & Test Engineering Intern
Valencia, California, United States
$21-$31/hr OnsiteInternship
ITT
ITTNYSE: ITT: Manufactures engineered components for transportation, energy, and industrial markets
Junior/Senior engineering student (Mechanical or Electrical) in good academic standing; familiarity with CAD; proficiency in Microsoft Word, Excel, PowerPoint; strong analytical, problem-solving, and communication skills.
CAD, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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1mo
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Utility Intern
Long Beach, California, United States
$22-$26/hr OnsiteMultiple Commitments Available
HDR
HDR: Global firm providing architecture, engineering, and environmental services.
Currently enrolled in an undergraduate or graduate engineering program; basic Microsoft Office skills; attention to detail, problem-solving and communication skills; able to work ~20 hours/week on-site; GPA and software familiarity preferred.
Microsoft Office
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1mo
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Utility Intern
Long Beach, California, United States
OnsitePart Time, Internship
HDR
HDR: Global provider of engineering, architecture, environmental and construction services.
Currently enrolled in an undergraduate or graduate engineering program; ~20 hours/week onsite; basic Microsoft Office skills, attention to detail, problem-solving and communication skills; prefer 3 years completed toward degree with 3.0+ GPA.
Microsoft Office
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5d
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Fall Engineering Intern
Los Angeles, California, United States
OnsiteFull Time
Odin Dynamics
Odin Dynamics: Developing autonomous underwater vehicles for defense and maritime missions.
Currently pursuing B.S. or M.S. in an engineering or related field, U.S. citizenship required, foundational skills in CAD/CAE, embedded programming or circuit design, and hands-on prototyping experience.
CAD/CAE, embedded systems, E-Verify
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3w
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Intern to Entry Level Conversion - Engineering (Summer 2026 Intern Program)
Seattle or Saint Charles or Huntsville or Portland or Midwest City or Oklahoma City or Berkeley or Miami or Huntington Beach or Hazelwood or Germantown or El Segundo or Fort Walton Beach or Ridgecrest or Tukwila or North Charleston or Kennedy Space Center or Heath or Houston or Fairfax or Colorado Springs or Seal Beach or Long Beach or Newburgh or Renton or Saint Louis or Auburn or Philadelphia or Everett or San Antonio or Kent or Mesa or New Orleans
$50k-$174k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, satellites, and defense systems.
Currently enrolled engineering/applied-sciences student with expected graduation before September 2027; previously interned with Boeing; strong academics, collaboration, and technical project experience; ability to meet export-control U.S. Person requirements for many roles.
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1mo
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Intern/Co-op - Refining Chemical Engineering Fall 2026
Findlay or El Paso or Anacortes or Wilmington or Martinez or Owensboro or Canton or Canonsburg or Mandan or Salt Lake City or Dickinson or Robinson or Detroit or St Paul Park or Catlettsburg or Garyville or Texas City or Kenai or San Antonio
$33-$42/hr OnsitePart Time, Internship
Marathon Petroleum
Marathon PetroleumNYSE: MPC: Refines and markets petroleum products and renewable fuels.
Must be majoring in Chemical Engineering, strong academic performance, concurrently enrolled in a degree program, valid driver's license, authorized to work in the US indefinitely, availability for multiple co-op/term assignments preferred.
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2026-2027 Facilities Engineering Intern (Previous Intern)
Houston or Ames or Bakersfield or Belle Chasse or Covington or El Segundo or Geismar or Greeley or Midland or Pasadena or Pascagoula or Richmond or Salt Lake City
$28-$8k/mo OnsiteFull Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
Bachelor's or Master’s in Chemical Engineering; strong academics; leadership, teamwork, problem-solving; relocation possible.
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2mo
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Turbomachinery Intern Fall 2026
Long Beach, California, United States
$28/hr OnsiteInternship
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
0+ YOEEnrolled in engineering/physics/math; at least one semester remaining; GPA 3.0+; 3+ months engineering experience.
Solidworks, Catia, NX, ANSYS, Matlab, Python
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4d
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LACCD Intern
Los Angeles, California, United States
$17-$35/hr HybridInternship
Arcadis
ArcadisEuronext Amsterdam: ARCAD: Global design, engineering, and consultancy for natural and built assets.
Pursuing a B.S. in Civil or Construction Engineering or related field; strong Microsoft Office skills; able to work independently in construction field; regional travel required; safety meeting participation.
Microsoft Office, Microsoft Excel
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1mo
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Development Test Engineering Intern (Fall 2026)
Redondo Beach or Mojave
$30/hr OnsiteInternship
Impulse Space
Impulse Space: Developing in-space transportation services and orbital transfer vehicles.
Pursuing or recently completed Bachelor's in Engineering/Science, hands-on experience with fluid/mechanical systems, ability to take project ownership, collaborate cross-functionally, willing to work on-site in Redondo Beach or Mojave, ITAR-eligible (US citizen/green card/protected individual) required.
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2w
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Mechanical Engineering Intern
Akron or Ashtabula or Conroe or Freeport or Houston or The Woodlands or McIntosh or Geismar or Los Angeles
OnsiteInternship, Full Time
Huntsman
HuntsmanNYSE: HUN: Manufactures and markets chemical products for consumer and industrial markets.
Pursuing a bachelor's in Mechanical Engineering, 3.0+ GPA preferred, strong mechanical aptitude and communication, proficiency with Microsoft Office, authorized to work in the U.S. without sponsorship.
Microsoft Office
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1mo
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Mechanical Engineering Intern
Torrance, California, United States
$20-$25/hr OnsiteInternship
Hexagon
HexagonNasdaq Stockholm: HEXA B: Global leader in digital reality and autonomous technology solutions.
High school diploma or equivalent; pursuing BS in Mechanical Engineering preferred; CAD experience with CREO; knowledge of GD&T and tolerance analysis; ability to document designs and assist in product lifecycle processes.
CREO, GD&T, MRP (Syteline), Windchill
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