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25 manufacturing engineering intern jobs at 18 companies in Fontana, CA

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Manufacturing Engineering Intern
Los Angeles, California, United States
$20-$25/yr OnsiteFull Time
DCX-CHOL Enterprises
DCX-CHOL Enterprises: Designs and manufactures electrical interconnect systems for harsh environments.
Currently pursuing an engineering-related degree; able to lift 50 lbs; English proficiency; willing to work flexible hours in a manufacturing environment.
AutoCAD, Visio, Fusion, ERP, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Adobe Acrobat
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2mo
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Manufacturing Engineering Intern Fall 2026
Long Beach, California, United States
$28/hr OnsiteMultiple Commitments Available
Rocket Lab
Rocket LabNasdaq: RKLB: Operates launch vehicles and manufactures satellites for space missions.
0+ YOEBachelor’s engineering/physics/math student with at least one semester remaining; GPA 3.0+, 3+ months applied engineering experience; on-site 12+ week internship in Long Beach, CA.
CAD, Mills, Lathes
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2mo
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Manufacturing Engineering Intern Fall 2026
Long Beach, California, United States
$28/hr OnsiteInternship
Rocket Lab
Rocket LabNASDAQ: RKLB: Designs and builds launch vehicles and satellite systems.
0.25+ YOEEnrolled in bachelor's in engineering/physics/math with ≥1 semester remaining, GPA≥3.0, 3+ months applied engineering experience, available full-time onsite for ≥12 consecutive weeks starting Aug/Sep 2026.
Computer Aided Design (CAD), Solid Modelling
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1w
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Manufacturing Engineer Intern
South Gate, California, United States
OnsiteMultiple Commitments Available
Precision Castparts Corp.
Precision Castparts Corp.NYSE: BRK.B: Manufacturer of complex metal components for aerospace and industrial markets.
Pursuing a BS in engineering or business management; requires analytical, technical, communication, organizational, and problem-solving skills, plus Microsoft Office proficiency and ability to interpret blueprints and specifications.
Microsoft Office, Microsoft Word, Microsoft Excel, Microsoft Access, Microsoft Outlook
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19h
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Process Engineering Intern
Yorba Linda, California, United States
OnsiteFull Time, Internship
Envista Holdings Corporation
Envista Holdings CorporationNYSE: NVST: Designs, manufactures, and markets dental products and equipment.
Engineering bachelor's degree completed within 12 months or in progress; basic manufacturing knowledge, engineering drawing and GD&T skills, and Microsoft Office proficiency required.
Microsoft Office
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1d
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Process Engineering Intern
Yorba Linda, California, United States
OnsiteFull Time
Envista
EnvistaNYSE: NVST: Manufactures and sells a comprehensive range of dental products.
Engineering bachelor's degree completed within 12 months or in progress; basic manufacturing knowledge, engineering drawing and GD&T skills, and Microsoft Office proficiency required.
Microsoft Office, GD&T, IQ/OQ/PQ, GMP
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1mo
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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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3mo
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Intern, Manufacturing Chemistry
Aliso Viejo, California, United States
$21-$34/hr OnsiteInternship
MicroVention
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
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1w
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Quality Engineering Intern
San Clemente, California, United States
$21-$25/hr OnsiteFull Time
IRP Medical
IRP Medical: Manufacturer of precision silicone and elastomer components for medical devices.
0+ YOEEnrolled in or recently graduated from an engineering program; 0–2 years experience; attention to detail, communication, teamwork; familiarity with manufacturing, quality, and basic metrology concepts; Microsoft Office proficiency.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, CAD
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2mo
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2027 Manufacturing Engineer Intern
Ashville or Atlanta or Boston or Costa Mesa or Irvine or Seattle
$30-$40/hr OnsiteInternship
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Pursuing a Bachelor's in aerospace/mechanical or related field; rising senior returning to school after internship; U.S. Person required to access Controlled Unclassified Information.
Lattice OS
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3d
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Mechanical Engineering Intern/Co-Op [Propulsion]
Long Beach, California, United States
OnsiteInternship
Odys Aviation
Odys Aviation: Develops hybrid-electric vertical takeoff and landing aircraft.
Currently pursuing a mechanical or aerospace engineering degree; CAD experience with NX or SolidWorks; familiarity with manufacturing and preferably hands-on fabrication experience.
NX, SolidWorks, CAD, 3D printing
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4d
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2026 Intern Conversion - Manufacturing Engineer I
North America or Seattle or Van Horn or Denver or Huntsville or Florida or Arlington or Los Angeles or Longmont or Reston or California or Colorado or Washington or Virginia
$69k-$105k/yr OnsiteFull Time
Blue Origin: Develops reusable rockets and systems for human spaceflight.
Blue Origin 2026 internship completion, college enrollment or recent graduation, BS in mechanical, aerospace, or astronautical engineering, U.S. work authorization, and full-time availability by September 2027.
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5h
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Engineering Manager
Easton or Santa Clara or Los Angeles or New York City or Chicago or Denmark
$125k-$160k/yr OnsiteFull Time
Human Active Technology
Human Active Technology: Designs and manufactures ergonomic furniture and workspace solutions.
8+ YOEBachelor's degree in mechanical or relevant engineering, 8+ years in manufacturing engineering, team leadership experience, CAD and FEA expertise, project management, mechanical analysis, and domestic and international travel.
CAD, FEA, Microsoft Office, Microsoft Excel
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1mo
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Manufacturing Documentation Specialist
Corona, California, United States
$59k-$94k/yr OnsiteFull Time
Agiliti
Agiliti: Manages and maintains medical equipment for healthcare providers.
3+ YOE3+ years quality or related experience; bachelor's degree in life sciences, engineering, or technical communications preferred. Experience with ISO 13485, internal/external audits, technical writing, MS Office, PLM/ERP; ability to lift and perform physical tasks.
Microsoft Office Suite, PLM, ERP
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1mo
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Manufacturing Documentation Specialist
Corona, California, United States
$59k-$94k/yr OnsiteFull Time
Agiliti
Agiliti: Manages and maintains medical equipment fleets for healthcare facilities.
3+ YOE3+ years quality or related experience; bachelor’s degree preferred in life sciences, engineering, or technical communications; ISO 13485 and internal/external audit familiarity; MS Office and ERP/PLM experience; technical writing skills.
Microsoft Office Suite, Product Lifecycle Management (PLM), Enterprise Resource Planning (ERP), Bills of Materials (BOM)
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3mo
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Business Development Lead, Manufacturing & Composites
San Clemente, California, United States
$110k-$135k/yr OnsiteFull Time
Swift Engineering
Swift Engineering: Aerospace engineering, advanced manufacturing, and unmanned systems solutions.
2+ YOEBachelor’s degree; 2+ years in business development in engineering/manufacturing/UAS; willing to domestic and international travel; strong aerospace knowledge; strong writing/presentation; collaborative.
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1w
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Quality Systems Engineer - Intern
Fontana, California, United States
$23-$26/hr OnsiteFull Time
Samuel, Son & Co.
Samuel, Son & Co.: Provides metal processing, distribution, and industrial manufacturing solutions.
Pursuing a bachelor's in engineering, knowledge of QMS/ISO9001, PFMEA, SPC, Excel and quality tools; able to analyze data, interpret drawings, and support audits and corrective actions.
Microsoft Office, Microsoft Excel, AutoCAD, SolidWorks, Microsoft Power BI, Minitab, GageTrak
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1mo
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Quality Engineer
Costa Mesa, California, United States
$80k-$95k/yr OnsiteFull Time
Sanmina
SanminaNASDAQ: SANM: Designs and manufactures complex electronics and mechanical systems.
5+ YOEBachelor's in engineering, 5+ years quality engineering in high-precision manufacturing, GD&T and CMM expertise, Six Sigma experience, SPC/MSA/FAI knowledge, internal auditing and corrective action skills.
Minitab, JMP, CMM
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3mo
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Production Engineer
Los Angeles, California, United States
HybridFull Time
Beamlink
Beamlink: Building portable, low-power cellular network infrastructure towers.
1+ YOEBachelor's degree in engineering, 1–3 years production/manufacturing/supply chain experience, PCB and international supplier experience, PLM/ERP familiarity, ability to read drawings and manage BOMs.
Duro, PLM, ERP, Zoom
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2d
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Application Engineer CAD/CAM US West (remote)
Los Angeles or California
$90k-$130k/yr RemoteFull Time
OPEN MIND Technologies
OPEN MIND Technologies: Developer of CAD/CAM software solutions for CNC machining.
3+ YOERequires 3+ years of manufacturing or CNC programming experience, CNC machining and CAD/CAM knowledge, software troubleshooting, GD&T, communication skills, a valid driving license, and domestic and occasional international travel.
hyperMILL, CNC, CAD/CAM, Microsoft Office, Salesforce
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