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38 research intern jobs at 33 companies in Lake Elsinore, CA

3mo
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Research Intern
Carlsbad or New York
OnsiteFull Time, Internship
Gemological Institute of America
Gemological Institute of America: Provides gemstone grading, gemology education, and scientific research services.
Actively enrolled in a bachelor’s or graduate degree program; gemology or related science preferred.
MS Office
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1mo
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Equity Research Intern
Newport Beach, California, United States
OnsiteInternship
Roth Capital Partners
Roth Capital Partners: Investment banking and research services for growth companies
Post-grad internship in-office in Newport Beach; analytical skills, financial modeling, MS Office (Excel, PowerPoint), strong writing and communication; able to work flexible schedule.
Microsoft Office, Microsoft Excel, Microsoft PowerPoint, Internet
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2mo
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Marketing Intern – Research & Insights
Solana Beach, California, United States
RemoteInternship
Urban Plates
Urban Plates: Operates a chain of chef-driven fast-casual healthy restaurants.
1+ YOE1–2 years research experience preferred, graduate degree in research/data analytics/applied psychology preferred. Proficiency with SurveyMonkey, SPSS, Google Suite or Microsoft Office, strong communication and mixed-methods research skills.
SurveyMonkey, SPSS, Google Suite, Microsoft Office
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3mo
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PIP Intern
Whittier, California, United States
$16/hr OnsitePart Time
SEP United
SEP United: Provides vocational support services for individuals with disabilities.
Internship involving assisting departments, supporting projects, research, data analysis, and administrative tasks.
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3d
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RAW MATERIAL RESEARCH & DEVELOPMENT LEAD
Anaheim, California, United States
$130k-$150k/yr OnsiteFull Time
St. John Knits
St. John KnitsNYSE: LANV: Designs and manufactures luxury women's knitwear and fashion accessories.
3+ YOERequires 3–5 years of hands-on yarn, fabric, or trim sourcing and development experience, textile expertise, vendor negotiation, project management, Microsoft Office proficiency, and domestic and international travel.
Microsoft Office, Microsoft Word, Microsoft Excel, Microsoft Outlook
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1mo
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Marketing Intern
Chino, California, United States
$20-$24/hr OnsitePart Time
Chino Commercial Bank
Chino Commercial BankOTC Markets: CCBC: Provides community-focused personal and business banking and lending services.
Support social media, create digital content and graphics, assist campaign execution, conduct market research, and maintain marketing assets. Requires strong communication, organization, and design aptitude.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Canva, Adobe Creative Suite
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6d
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Administrative Intern
Upland, California, United States
$18-$22/hr OnsitePart Time, Internship
City of Upland
City of Upland: Provides municipal infrastructure and public safety services for local residents.
Current or recent enrollment in an accredited college or university; administrative duties include data entry, recordkeeping, filing, research, document preparation, customer service, and computer-based records management.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook
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2mo
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Firmware Engineer Intern
Irvine, California, United States
OnsiteInternship
Fluxergy
Fluxergy: Portable diagnostic platform for rapid point-of-care laboratory testing
0+ YOEEnrollment in a Bachelor’s or Master’s program; 30-40 hours/week; proficiency in C/C++; RTOS exposure; strong problem-solving and communication skills.
C/C++, RTOS, Git, Embedded systems
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3d
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Lab Technician Intern
Riverside, California, United States
$20-$25/hr OnsiteMultiple Commitments Available
JBT Marel Corporation
JBT Marel CorporationNYSE: JBTM: Global technology solutions provider for food and beverage processing.
Pursuing or holding an associate or bachelor's degree in a scientific field; chemistry lab experience, basic laboratory skills, chemical handling, SDS comprehension, and strong written and verbal communication required.
Chemical SDS
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2d
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Intern, Rail Operations
Orange, California, United States
$20-$23/hr OnsitePart Time, Internship
Orange County Transportation Authority
Orange County Transportation Authority: Operates public transportation and manages infrastructure for Orange County.
Full-time college student pursuing a relevant undergraduate or graduate degree, with a 2.5+ GPA and strong analytical, organizational, communication, collaboration, and deadline-management skills.
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2d
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Cultural Resources Intern
Mission Viejo or Carlsbad
$18-$20/hr FieldMultiple Commitments Available
Dudek
Dudek: Providing multidisciplinary environmental, engineering, and planning consulting services.
Requires two years of college coursework in archaeology, anthropology, geology, or related fields; California cultural history knowledge; field and laboratory skills; Microsoft Office 365 proficiency; a valid California driver's license and reliable transportation.
Microsoft Office 365
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2d
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Intern, Rail Operations
Orange, California, United States
$20-$23/hr OnsitePart Time, Internship
Orange County Transportation Authority
Orange County Transportation Authority: Public transportation authority serving Orange County, California.
Current full-time college enrollment, relevant undergraduate or graduate study, minimum 2.5 GPA, and strong analytical, organizational, communication, collaboration, and deadline-management skills.
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1mo
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Land Acquisition Intern
Irvine, California, United States
$19-$20/hr OnsiteInternship, Temporary
City Ventures
City Ventures: Develops energy-efficient residential communities in California urban markets.
Pursuing or holding a bachelor's in related field; interest in residential real estate; strong analytical, research, organizational, and communication skills; Microsoft Excel proficiency.
Microsoft Excel
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1w
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Seasonal HR Intern
Ontario, California, United States
$13-$52/hr OnsiteMultiple Commitments Available
UPS
UPSNYSE: UPS: Global provider of package delivery and supply chain logistics.
Recent human resources management graduate or equivalent with Microsoft Office proficiency, strong communication, research, organization, confidentiality, and employment law knowledge preferred.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Access
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1d
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Bilingual Legal Intern (Mandarin)
Pasadena or Dallas or Santa Ana or Los Angeles or United States
OnsiteMultiple Commitments Available
Law Offices of Sabrina Li
Law Offices of Sabrina Li: Providing comprehensive legal representation for U.S. immigration matters.
Pursuing or holding a pre-law degree, bilingual English and Mandarin, strong legal research, analytical, writing, communication, professionalism, and confidentiality skills; prior relevant experience preferred.
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1mo
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Land Acquisition Intern
Irvine, California, United States
$20/hr OnsiteInternship, Temporary
City Ventures
City Ventures: California-based residential homebuilder and urban infill developer.
Pursuing or holding a bachelor’s in a related field, interest in residential real estate, strong analytical and research skills, Microsoft Excel proficiency, ability to manage deadlines and present findings.
Microsoft Excel
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6d
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Public Works Intern
Dana Point, California, United States
$17-$24/hr OnsitePart Time, Internship
City of Dana Point
City of Dana Point: Municipal government providing public services to the Dana Point community.
Current college enrollment in civil engineering or a related field with at least one year completed, or recent related graduate; high school diploma/GED; basic GIS, design, research, reporting, and customer service skills.
GIS, CADD
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1w
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Intern - EHS
Garden Grove, California, United States
$18-$22/hr OnsiteMultiple Commitments Available
Valence Surface Technologies
Valence Surface Technologies: Provides surface finishing and chemical processing for aerospace components.
High school diploma or GED required; proficiency in Microsoft Office, data entry, research, communication, safety awareness, and technical problem-solving. Must wear PPE and meet ITAR requirements.
Microsoft Office, Personal Protective Equipment (PPE)
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1w
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Sales & Marketing Intern
Lake Forest, California, United States
OnsiteInternship
IRP Medical
IRP Medical: Manufacturer of precision silicone and elastomer components for medical devices.
Internship supporting sales and marketing through market research, data analysis, workflow documentation, customer data updates, competitive analysis, and continuous improvement projects.
Microsoft Excel
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2mo
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Data Engineering Intern, AI & Analytics - Fall 2026
Palo Alto or Irvine
$45-$51/hr OnsiteInternship, Full Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: A joint venture developing software-defined vehicle technology and AI-driven connectivity solutions.
Currently pursuing an MS or PhD in CS/ML/EE or related field; strong Python skills, experience with PyTorch or TensorFlow, solid ML/deep learning and reinforcement learning fundamentals, and familiarity with multimodal/foundation models.
Python, PyTorch, TensorFlow, Cursor
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