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30 chemical engineering intern jobs at 21 companies in California

1mo
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Chemical Engineering Intern
Akron or Ashtabula or Conroe or Freeport or Houston or The Woodlands or McIntosh or Geismar or Los Angeles
OnsiteFull Time
Huntsman
HuntsmanNYSE: HUN: Manufactures and markets chemical products for consumer and industrial markets.
Pursuing a Bachelor's in Chemical Engineering, minimum 3.0 GPA preferred, strong analytical and communication skills, proficiency in Microsoft Excel/PowerPoint/Word, authorized to work in the U.S. without sponsorship.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word
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1mo
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2026-2027 Facilities Engineering Chemical Engineering Intern
Houston or Bakersfield or Belle Chasse or Midland or Geismar or El Segundo or Pasadena or Pascagoula or Covington or Salt Lake City or Richmond or Ames or Greeley
$28/hr OnsiteInternship, Full Time
Chevron
ChevronNYSE: CVX: Global energy producing oil, gas, and petrochemicals.
Pursuing bachelor's or master's in chemical engineering; strong academics, communication, teamwork, problem-solving; ability to demonstrate Chevron Way.
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2w
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Chemical Engineering / Chemistry Intern (Pocatello, Idaho)
Pocatello or California or Idaho or Nevada or Utah or Wyoming or United States
OnsiteFull Time, Internship
J.R. Simplot Company
J.R. Simplot Company: Produces food, fertilizers, and agricultural products for global markets.
Currently pursuing a BS in Chemical Engineering or Chemistry; requires attention to detail, self-motivation, teamwork, adaptability, and proficiency with Microsoft Word and Excel.
Microsoft Word, Microsoft Excel
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2mo
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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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4w
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Chemical and Materials Engineering Internship - Summer 2027
Alameda or Albuquerque or Oak Ridge
$28-$32/hr OnsiteInternship
Kairos Power
Kairos Power: Developing fluoride salt-cooled nuclear reactors for clean energy.
Enrolled in BS/MS/PhD in chemical engineering, chemistry, materials science or related; lab/research experience preferred; MATLAB, AutoCAD, Python and Microsoft Office familiarity; strong problem‑solving and communication skills.
MATLAB, AutoCAD, Python, Microsoft Outlook, Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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2d
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Chemical Engineer
San Leandro, California, United States
OnsiteFull Time
Mycronic
MycronicNasdaq Stockholm: MYCR: Supplies precision production equipment for the global electronics industry.
0+ YOEBachelor’s in Chemical Engineering, Materials Engineering, or Materials Science; 0–3 years of experience; strong oral and written communication skills; domestic and international customer-site travel.
Bills of Materials (BOMs), Engineering Change Orders (ECOs)
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2w
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2027 Summer Intern & Co-Op: Chemical, Mechanical and Electrical Engineering Opportunities - Qnity Electronics
Wilmington or Newark or Circleville or Dayton or Towanda or Marlborough or Pasadena or Hayward or Midland or Carlsbad or Schaumburg or Cleveland or Parlin
OnsiteFull Time
Qnity Electronics
Qnity ElectronicsNYSE: Q: Manufactures materials and solutions for the semiconductor industry.
Enrolled full-time in a Bachelor’s or Master’s ABET-accredited engineering program (Chemical, Mechanical, Electrical or related), GPA ≥3.0, available May–August, and legal right to work in the U.S. without visa sponsorship.
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2mo
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Development Engineering Intern
Sunnyvale, California, United States
$25-$30/hr OnsiteInternship
JSR Micro
JSR Micro: Supplier of advanced semiconductor materials and lithography chemicals.
Pursuing or recently completed BS/MS in Chemistry, Chemical Engineering, Materials Science, or related field; interest in semiconductor technology and lithography; basic lab experience; strong analytical and communication skills.
Laboratory techniques, FT measurements, Data analysis, Predictive modeling
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3w
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Development Engineering Intern (Fall 2026)
Santa Clara, California, United States
$28-$31/hr OnsiteFull Time
First Solar
First SolarNASDAQ: FSLR: Designs and manufactures thin-film photovoltaic solar modules.
Must be at least a junior undergraduate pursuing Chemical Engineering or Chemistry, proficient in Microsoft Office, able to follow SOPs, lab/troubleshooting experience preferred, able to lift up to 37 lbs, meet vision and safety requirements, and pass background check.
Microsoft Office Suite, Microsoft Excel, Microsoft PowerPoint, Microsoft Word, UV-Vis, AFM, SEM, SIMS, XRD, XRR, ellipsometry
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1d
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Propulsion and Fluids Intern
Centennial or Long Beach
$28-$32/hr OnsiteMultiple Commitments Available
True Anomaly
True Anomaly: Develops autonomous spacecraft and software for space security missions.
Currently enrolled in an aerospace, mechanical, chemical engineering, or related bachelor's or master's program; U.S. citizenship required; must work onsite 40 hours weekly and provide transportation.
MATLAB, Python, Microsoft Excel, LabVIEW, CAD
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2d
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Intern, Manufacturing Engineer (Anaheim, CA) (42429)
Anaheim, California, United States
$26-$48/hr OnsiteFull Time, Internship
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Aerospace and defense providing mission-critical technology solutions.
Pursuing a bachelor's degree in mechanical, electrical, chemical, industrial engineering, or a related field. Preferred skills include CAD, soldering, Lean Six Sigma, statistical software, Python, and manufacturing process experience.
AutoCAD, SolidWorks, Creo, Minitab, JMP, Python, Lean Six Sigma
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1mo
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Intern, Bioprocess
Davis, California, United States
$18-$20/hr OnsitePart Time, Internship
Pro Farm Group
Pro Farm Group: Develops biological crop protection and plant health solutions for agriculture.
College student (biology, biotechnology, chemical engineering or related) with ability to perform lab housekeeping, prepare media, maintain inventory, perform measurements, and work flexible hours.
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1mo
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Process and Thermal Performance Intern
Alameda or Florida
$35-$45/hr HybridInternship
Rondo Energy
Rondo Energy: Manufactures thermal batteries for industrial zero-carbon heat delivery.
Pursuing Bachelor's or Master's in Mechanical/Chemical engineering, coursework in thermodynamics/fluid mechanics/heat transfer, familiarity with 1D thermal-fluid analysis and simulation tools, strong math and communication skills.
AFT, Ebsilon, Aspen, MATLAB, Aspen Plus/HYSYS, CFD, FEA
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5d
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Biomedical Engineer Intern
South San Francisco, California, United States
$35/hr OnsiteInternship
Neuralink
Neuralink: Developing implantable brain-computer interfaces to restore human capabilities.
2+ YOERequires exceptional ability in materials, chemical, biomedical engineering, chemistry, or a related field; 2+ years academic or industry experience; scientific method, lab safety, chemical handling, organization, and communication skills.
SolidWorks, CAD, FTIR, XPS, AFM
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15h
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Electrochemistry Modeling Intern
Sunnyvale, California, United States
$41-$55/hr OnsiteFull Time, Internship
Bosch
Bosch: Global manufacturer of automotive and industrial engineering technology.
Graduate student in applied mathematics, chemical or mechanical engineering, or a related field with GPA 3.0+. Requires computational and mathematical foundations focused on electrochemistry and transfer phenomena.
Python
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4w
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MWD Water Reuse Co-Op Intern - MWD - #721853572
Pomona or Carson
$25/hr OnsitePart Time
Cal Poly Pomona Foundation
Cal Poly Pomona Foundation: Auxiliary organization providing support services for Cal Poly Pomona.
Currently enrolled in a 4-year Civil/Chemical/Environmental/Engineering or Chemistry degree, GPA≥2.5, sophomore/junior/early senior status, ability to work 8–10 hrs/wk (up to 20 in summer), valid CA driver\u0002s license and auto insurance if driving, background check required.
Microsoft Windows
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2w
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Operations Intern - Summer 2027
Rancho Cucamonga or Peachtree City or Mount Prospect or Greenfield or Lowell or Mentor or Painesville or Fairport Harbor or Miamisburg or Oak Harbor or Neenah
$26-$29/hr OnsiteInternship
Avery Dennison
Avery DennisonNYSE: AVY: Manufacturer of materials science and digital identification products.
Pursuing a Bachelor’s in engineering (chemical/mechanical/industrial preferred), previous internship or relevant experience, willing to relocate, reliable transportation, pass background and drug screening; sponsorship not available.
RFID
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1mo
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Product Install Engineer - Chemical Analysis - >80% travel
Totowa or Milpitas
$31-$53/hr FieldFull Time
KLA
KLANASDAQ: KLAC: Provides process control and yield management for semiconductor manufacturing.
Lead on‑time installation and qualification of complex capital equipment, troubleshoot technical issues, perform setup/alignment/calibration, extensive domestic and international travel (>80%), Associates degree or equivalent experience required.
Windows, Unix, Microsoft Office
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1mo
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Research Associate Intern
Camarillo, California, United States
OnsiteFull Time
PBS Biotech
PBS Biotech: Designs and manufactures single-use bioreactor systems for cell therapy.
Bachelor's in chemical/biochemical engineering, life sciences, or biotechnology; proficiency in aseptic and mammalian cell culture; bioreactor and aseptic lab experience; strong communication and organization; weekend flexibility for experiments.
bioreactor, autoclave
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1mo
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Quality, ISO and Environmental Engineer
Irvine, California, United States
$75k-$96k/yr OnsiteFull Time
SDC Technologies
SDC Technologies: Manufacturer of high-performance abrasion and chemical resistant coating systems.
4+ YOEBS in Engineering or Chemical Engineering, 4+ years relevant experience, experience with ISO-9001/ISO-14001, quality certifications, intermediate Microsoft Word/Excel, NCCA system experience, internal auditing and continuous improvement skills.
NCCA, Microsoft Word, Microsoft Excel
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