45

California internships in Napa, CA, United States

Refining Chemical Engineering Intern/Co-op Spring 2027
Marathon Petroleum - Martinez, CA, United States
Supply Chain Intern - Engineering and Business Majors
Ecolab - California, United States
2026-2027 Health, Safety and Environment Intern
Chevron - Richmond, CA, United States
(Associate/Undergraduate) Intern - Community Air Quality Monitoring
National Laboratory of the Rockies - Remote in United States
(Associate/Undergraduate) Intern - Carbon Management and Large Energy Systems
National Laboratory of the Rockies - Remote in United States