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Illinois summer internships
Refining Chemical Engineering Intern/Co-op Summer 2027
Marathon Petroleum - Kentucky, United States
EHS Intern
BorgWarner - Bellwood, IL, United States
Software Engineer Data & AI I (Intern) - United States
Cisco - Milpitas, CA, United States
Returning Project Controls Intern - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Jackson, MI, United States
Intern/Co-op - Refining Electrical Engineering (Fall 2027)
Marathon Petroleum - Anacortes, WA, United States
Intern/Co-op - Refining Electrical Engineering (Spring 2027)
Marathon Petroleum - Martinez, CA, United States
Intern Engineering Designer, Water
TYLin - Chicago, IL, United States
Intern/Co-op - Refining Mechanical Engineer (Spring 2027)
Marathon Petroleum - Robinson, IL, United States
2026-2027 U.S. Operations Intern/Co-op - Fall Posting
Dow - Beaumont, TX, United States
Intern/Co-op - Refining Electrical Engineering (Summer 2027)
Marathon Petroleum - Texas City, TX, United States
2026-2027 U.S. Operations Intern/Co-op - Fall Posting
Dow - Croydon, PA, United States
Returning Intern Planner - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Cleveland, OH, United States
Engineering Product Management Specialist I (Intern) - United States
Cisco - San Jose, CA, United States
2026-2027 U.S. Operations Intern/Co-op - Fall Posting
Dow - Freeport, TX, United States
Analyst Internship Program - Finance & Operations Track (CFO Org)
GEICO - Chicago, IL, United States
Intern/Co-op - HES&S Safety and Industrial Hygiene (Summer 2027)
Marathon Petroleum - San Antonio, TX, United States
Intern/Co-op - Refining Electrical Engineering (Fall 2027)
Marathon Petroleum - Kenai, AK, United States
Refining Chemical Engineering Intern/Co-op Spring 2027
Marathon Petroleum - Salt Lake City, UT, United States
Digital HR Intern
Ingredion - Westchester, IL, United States
Intern/Co-op - Refining Mechanical Engineer (Spring 2027)
Marathon Petroleum - Findlay, OH, United States
