41
engineering internships in Illinois
Civil Engineering Intern / Co-op - Fall 2026
Langan Engineering & Environmental Services - Chicago, IL
2026 Software Engineering Summer Intern
GCM Grosvenor - Chicago, IL
Associate Product Manager (APM) Intern (Chicago Based) - Data & AI Engineering
seoClarity - Chicago, IL
Intern-Signal Engineering
Metra Commuter Rail - Chicago, IL
Refining Chemical Engineering Intern/Co-op Spring 2027
Marathon Petroleum Corporation - Robinson, IL
Environmental Engineering Intern
CF Industries - Northbrook, IL
Engineering Intern Co-op
Marmon Holdings, Inc. - Chicago, IL
Intern, Technical Support (R&D Engineering)
General Dynamics Ordnance and Tactical Systems - Marion, IL
Water Resources Engineering Intern
Arcadis - Chicago, IL
Engineering Technician Intern
Plews and Edelmann - Dixon, IL
Product Test and Validation Engineering Intern
Culligan International - Rosemont, IL
Engineering Intern - Industrial Fuses
Littelfuse - Champaign, IL
Intern/Co-op - Refining Chemical Engineering Fall 2026
Marathon Petroleum Corporation - Robinson, IL
Engineering Internship - Summer 2026
Fehr Graham Engineering & Environmental - Rockford, IL
Engineering Intern - Byron, IL
Constellation - Byron, IL
Mechanical Engineering Intern
Provisur Technologies Inc - Mokena, IL
HR Intern
Fehr Graham Engineering & Environmental - Rockford, IL
Intern/Co-op - Refining Electrical Engineering (Spring 2027)
Marathon Petroleum Corporation - Robinson, IL
Structural Bridge Engineering Intern - Summer 2026
Farnsworth Group, Inc. - Normal, IL
Product Engineering Intern
MAT Friction - Long Grove, IL
