34 research intern jobs at 25 companies in El Cajon, 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
4d
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Research Intern (Biology)
San Diego, California, United States
OnsitePart Time
HiComp
HiComp: Full-service microfluidics foundry for life science and diagnostics.
Graduate student in biology, bioengineering, cell biology, or related field with hands-on mammalian cell culture experience, laboratory skills, data analysis, and understanding of microfluidics or Organ-on-a-Chip principles.
Organ-on-a-Chip (OoC), microfluidic biochips, Microsoft Office Suite, PCR, Western Blot, fluorescence microscopy
1mo
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INTERN RESEARCH - Zwick Lab
La Jolla, California, United States
$18-$20/hr OnsitePart Time, Internship
Scripps Research
Scripps Research: Conducts biomedical research and develops novel drug therapies.
Currently enrolled student (high school, associate, bachelor, or master); supporting basic lab maintenance, preparing media/solutions, and assisting experiments; part-time up to 19 hrs/week.
1w
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Research Scientist Intern (Multimedia Streaming) - 2027 Start (PhD)
San Diego, California, United States
OnsiteInternship
ByteDance
ByteDance: Developing AI-driven content platforms and mobile applications.
Currently pursuing a PhD in computer science, electrical engineering, or a related field; requires research ability, strong algorithms and systems fundamentals, analytical skills, and collaborative communication.
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
1w
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Intern (Graduate)
Chula Vista, California, United States
$19-$23/hr OnsitePart Time
City of Chula Vista
City of Chula Vista: Provides municipal services and governance for the Chula Vista community.
Graduate enrollment or completion of a Bachelor's degree in a related field; must submit transcripts; previous experience not required; ability to create social media content, perform research, data analysis, and attend events.
4d
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Climate Intern
San Diego, California, United States
$20/hr OnsiteMultiple Commitments Available
Sierra Club
Sierra Club: Protects the environment through advocacy, litigation, and community outreach.
Strong written and verbal communication, organization, research, critical thinking, environmental and social justice commitment, adaptability, and ability to collaborate with staff, volunteers, and community partners.
2w
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Engineering Intern
Tijuana, Baja California, Mexico
OnsiteFull Time
Sensata Technologies
Sensata TechnologiesNYSE: ST: Manufactures mission-critical sensors and electrical protection components.
Support process engineering projects through research, testing, time studies, line balancing, process data collection and reporting; collaborate with operations, maintenance, and quality teams.
1w
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Compound Management Intern
San Diego, California, United States
$22/hr OnsitePart Time, Internship
Kumquat Biosciences
Kumquat Biosciences: Developing small molecule therapeutics for patients with cancer
Detail-oriented candidate with communication and prioritization skills; chemistry or biology major preferred, with organic chemistry and laboratory coursework ideal.
LC/MS
2w
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Fall San Diego Regional Intern
San Diego, California, United States
$15/hr HybridInternship, Part Time
Anti-Defamation League
Anti-Defamation League: Combats antisemitism and defends civil rights through advocacy
High school diploma or equivalent, passion for nonprofit work, strong communication, research and organizational skills, Microsoft Word and Excel experience, discretion with sensitive issues.
Microsoft Word, Microsoft Excel
2w
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Imp/Exp Intern
Tijuana, Baja California, Mexico
OnsiteInternship, Full Time
Haemonetics
HaemoneticsNYSE: HAE: Manufactures medical devices for blood and plasma management.
Bachelor's degree or equivalent technical training; strong collaboration, analytical and organizational skills; experience with transport/customs procedures and Annex 24 system; able to perform research, documentation, and administrative project work.
Microsoft PowerPoint, Annex 24 system
2w
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Fall intern, NEWSWELL Times of San Diego
San Diego, California, United States
$20/hr OnsitePart Time
NEWSWELL
NEWSWELL: Operates a network of nonprofit local newsrooms.
Journalism internship: strong news writing/editing, AP style, research, interviewing, multimedia and WordPress/Photoshop familiarity; degree-seeking student or recent graduate in journalism/communications.
WordPress, Photoshop
1mo
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Intern- Deep Learning Researcher
Seoul or San Diego or Amsterdam or Beijing
OnsiteInternship
Qualcomm
QualcommNASDAQ: QCOM: Designs and manufactures semiconductors and wireless telecommunications products.
Python; hands-on deep learning experience (e.g., PyTorch); basic machine learning and signal processing knowledge; research interest in speech, multimodal, federated, few-shot, unsupervised/self-supervised, and generative models.
Python, PyTorch
2d
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Legal Intern (Paid Internship – Summer 2027)
San Diego, California, United States
$29/hr OnsiteMultiple Commitments Available
San Diego City Attorney's Office
San Diego City Attorney's Office: Provides legal counsel and prosecution services for San Diego.
Current second-year law student at an ABA-accredited law school, on track to graduate by June 2028, take the July 2028 California Bar Exam, and demonstrate strong legal writing, oral advocacy, research, and communication skills.
Federal Bureau of Investigation (FBI), Microsoft Word
2mo
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Lab Assistant (Intern), Analytical Development
San Diego, California, United States
$20/hr OnsitePart Time
Catalent
Catalent: Global provider of drug development and manufacturing solutions.
Part-time intern role requiring high school diploma, enrollment in a Bachelor’s program in life sciences, and chemistry coursework; on-site 8am-5pm, 15-20 hours/week, San Diego, CA; $20/hour.
3w
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Business Development Intern
California or San Diego or Raleigh or United States or Europe or Asia
$20-$30/hr RemoteInternship, Part Time
Endpoint Clinical: Provides interactive response technology for clinical trial management.
Pursuing a related degree; sales/marketing internship experience preferred; strong communication, research, organization, and CRM skills; ability to work 20-30 hours/week remotely.
PULSE®, Salesforce, SalesQL, Global Data
4d
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ATEC Internships
San Diego, California, United States
OnsiteInternship
Advanced Test Equipment Rentals
Advanced Test Equipment Rentals: Rents and sells electronic test and measurement equipment.
Hands-on internship providing project experience in electronic test and measurement while applying classroom knowledge to real-world projects.
1w
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Praktikum MSAT Process Science Technology (m/w/d)
Penzberg or Basel or Oceanside or Vacaville or South San Francisco
€2k/mo OnsiteFull Time, Internship
Roche
RocheSIX Swiss Exchange: ROG: Develops and manufactures pharmaceutical medicines and diagnostic solutions.
Enrolled advanced bachelor's or master's student in bioengineering, process engineering, biotechnology, chemical engineering, or related studies; knowledge of bioreactors, fluid dynamics, and mathematical data modeling; German and/or English proficiency.
Python, R, JMP, Viskosimeter, Tensiometer, Clark probe
2mo
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Global Development Lead, Internal Medicine, Sr. Director (non-MD)
Collegeville or La Jolla or Bothell or Pearl River or New York City or Cambridge or Groton or United Kingdom or Walton Oaks or Collegeville
$215k-$358k/yr HybridFull Time
Pfizer
PfizerNYSE: PFE: Develops and manufactures vaccines and medicines for global healthcare
8+ YOEPhD or PharmD; 8+ years in clinical development (Phase 1-3); expertise in weight management or internal medicine; strong leadership and communication.
1w
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Internship -Education Public Relation
New York City or Washington or Abu Dhabi or Atlanta or Bangalore or Bangkok or Beijing or Boston or Chicago or Delhi or Denver or Detroit or Dublin or Fort Lauderdale or Frankfurt or Hong Kong or Honolulu or Jerusalem or Kuala Lumpur or London or Los Angeles or Madison or Manila or Melbourne or Mumbai or Munich or Nashville or Paris or Portland or San Diego or San Francisco or Seattle or Singapore or Sydney or Vancouver or Yangon
HybridInternship, Full Time
Finn Partners
Finn Partners: Global independent public relations and marketing communications agency.
Full-time fall internship for students interested in education PR, journalism, public affairs, communications, or marketing; requires strong writing, editing, research, collaboration, and Microsoft and Google Workspace skills.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Google Docs, Google Sheets, Google Slides, Slack, Zoom, Meltwater, Muck Rack, Canva, Claude, Gemini, ChatGPT, NotebookLM, LinkedIn, X, BlueSky, TikTok, Instagram, Facebook, Reddit, Substack