47 process engineering intern jobs at 37 companies in California
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Process Engineering Internship (Fall 2026)
Los Angeles or Hawthorne or El Segundo
$30-$35/hrOnsiteFull Time, Internship
Freeform: Deploys autonomous AI-powered metal 3D printing factories.
Currently pursuing a Bachelor's in materials science, physics, or engineering; experimental design and statistical data analysis experience; strong data analysis skills; experience with Python and/or MATLAB.
Peak Energy: Developing sodium-ion battery systems for utility-scale energy storage.
Pursuing a Bachelor's in engineering, knowledge of materials and battery components, strong problem-solving, communication and teamwork, hands-on manufacturing willingness; Six Sigma/Lean exposure preferred.
Solcoa: Produces carbon-zero rare earth metals by recycling industrial magnets.
Enrolled in BS/MS in metallurgical engineering, materials science, or related field; hands-on lab/furnace experience; exposure to high-temperature processing; strong documentation and safety focus; on-site availability.
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.
The Marvin Group: Designs and manufactures military aerospace and defense hardware.
Must be a sophomore+ in mechanical engineering or related field; proficient in CAD (CATIA V5/SolidWorks), Microsoft Office; knowledge of manufacturing processes and GD&T; strong communication and teamwork skills.
CATIA V5, SolidWorks, SmarTeam PDM, PDM, Adobe, Microsoft PowerPoint, Microsoft Excel, Microsoft Word, Microsoft Project
Zipline: Operates an autonomous drone delivery system for medical supplies.
Undergraduate (completed 2nd year) or graduate student in engineering or related field; proficiency in 3D CAD (NX preferred), GD&T, manufacturing processes, APQP/PPAP, problem-solving frameworks (8D, FTA, Pareto), and process documentation.
NX, GD&T, APQP, PPAP, 8D, FTA, Pareto Analysis, FMEAs, Control Plans, Work Instructions, Zipline Approval Process (ZAP), PCBA
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.
Construction Engineering Internship (Texas/Arizona/Florida/California) - Austin Commercial
Dallas-Fort Worth or Austin or Houston or Phoenix or Orlando or Tampa or Los Angeles
OnsiteMultiple Commitments Available
Austin Industrial: Construction and maintenance services for industrial facilities.
Seeking interns for paid construction engineering internships; duties include processing submittals, RFIs, field layout with survey instruments, documenting drawings and supporting quality/safety tasks.
Fall 2026 PhD Intern - Hardware Development Engineering
Fremont, California, United States
$42-$56/hrOnsiteInternship
Western DigitalNASDAQ: WDC: Design and manufacture data storage devices and systems.
Currently pursuing or recently completed PhD in engineering or core science; strong critical thinking, problem solving, and communication skills; ability to support photo process development, mask management, and execution of engineering projects.
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.
MicroVention: Manufacturer of neurovascular medical devices for stroke treatment.
Working toward a Bachelor’s or Master’s in Mechanical/Biomedical Engineering or related; interest/experience in process development; coursework in statistics and tooling design; SolidWorks a plus; computer skills in Word, Excel, PowerPoint; mechanical aptitude.
SolidWorks, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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.
Regal Technology Partners: Manufacturer of mission-critical electronic systems for aerospace and defense.
Currently pursuing a Bachelor's in engineering, knowledge of manufacturing processes and lean principles, proficiency with Microsoft Office, strong analytical and problem-solving skills, ability to stand and lift up to 25 lbs.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
Solar TurbinesNYSE: CAT: Manufacturer of industrial gas turbines and turbomachinery systems.
Currently pursuing a Bachelor's or Master's in engineering or business-related field, GPA ≥2.8, familiarity with Lean/Six Sigma and process improvement, strong analytical and communication skills.
Halo Industries: Manufactures silicon carbide wafers using laser-based slicing technology.
0+ YOEPursuing or recent graduate in software/CS/engineering; Python or C# experience; works with structured workflows and large datasets; able to debug issues and follow processes.