406
summer internships in California
2026 Summer Intern | Patient Marketing
Ionis Pharmaceuticals, Inc. - Carlsbad, CA
Business Analytics Intern - Summer 2026
Henkel - Culver City, CA
Summer Intern, Discovery Pharmacology (Neuroscience)
Arrowhead Pharmaceuticals - San Diego, CA
Summer Camp Intern, Thousand Oaks/Westlake Village
Galileo Learning - Thousand Oaks, CA
Marketing Copywriter Intern - Summer 2026
Lensa - San Diego, CA
Business Development Representative Intern (Summer 2026)
Okta - San Francisco, CA
Student Intern, Architecture - Buildings (Summer 2026)
Lensa - San Francisco, CA
Paramount Warehouse Operations 2026 Summer Intern- Supply Chain
Kroger - Paramount, CA
Summer Camp Intern, Burlingame
Galileo Learning - Burlingame, CA
Brand Activation & Campaign Intern, Pravana - Summer 2026
Henkel - Culver City, CA
Continuous Improvment Engineering Intern - Summer 2026
Entegris - San Luis Obispo, CA
Summer Camp Intern, San Mateo
Galileo Learning - San Mateo, CA
Summer Intern - National Data Center
Colliers - San Francisco, CA
2026 Summer Intern - Clinical Insights and Automation (Early Clinical Development)
Genentech - South San Francisco, CA
Summer Camp Intern, Galileo X - Los Alamitos
Galileo Learning - Los Alamitos, CA
Software Engineer Intern (Ads Infrastructure) - 2026 Summer (BS/MS)
TikTok - San Jose, CA
Machine Learning Engineer Intern (Trust and Safety - CV/NLP/Multimodal LLM) - 2026 Summer(BS/MS)
TikTok - San Jose, CA
Fab Software Engineering Intern - Summer
Atomic Semi - San Francisco, CA
2026 Summer Intern - Human Genetics
Genentech - South San Francisco, CA
Account Management Internship - Summer 2026
CG Life - San Diego, CA
