Internships › Mechanical Engineering › Illinois

Mechanical Engineering internships in Illinois

17 open student roles in mechanical engineering in Illinois, from internships to co-ops and research. That includes 9 co-ops. 35% list pay or say they are paid. The most common start terms are Summer 2027 and Spring 2027. Employers with the most openings: Marathon Petroleum, Emerson Electric, Stryker, Allegion and Bernhard.

• Flex
  Manufacturing Data & Analytics Co-op
  Libertyville, IL · Spring 2027 · co-op
  Open posting
• Rivian
  Engineering Intern - Manufacturing Engineering (Spring 2027 Co-Op)
  Normal, Illinois · Spring 2027 · co-op · Paid
  Open posting
• Emerson Electric
  Mechanical Engineering Co-op (Summer 2027)
  Rockford, IL +2 · Summer 2027 · co-op
  Open posting
• Reyes Beverage Group
  Continuous Improvement Manufacturing Internship
  Alsip, Illinois +7 · Summer 2027 · Paid
  Open posting
• Entegris
  Manufacturing Engineering Co-Op
  Aurora, IL +5 · co-op
  Open posting
• Syska Hennessy Group
  Mechanical Engineer Summer Intern
  Chicago, IL +1 · Summer
  Open posting
• Allegion
  Summer Intern - Mechanical Engineer
  Princeton, IL +4 · Summer
  Open posting
• Emerson Electric
  Mechanical Engineering Co-op (Spring 2027)
  Rockford, IL +1 · Spring 2027 · co-op
  Open posting
• Stryker
  Manufacturing Engineering Intern
  Cary, Illinois +1
  Open posting
• Mondelez International
  Manufacturing- Process Engineering Co-Op(For Naperville, IL Local Candidates Only)
  Naperville, Illinois, United States · co-op
  Open posting
• Stryker
  Summer 2027 Internship - Mechanical Engineering - Illinois
  Cary, Illinois · Summer 2027
  Open posting
• Marathon Petroleum
  Intern/Co-op - Refining Mechanical Engineer (Fall 2027)
  Robinson IL Refinery +13 · Fall 2027 · co-op · $32.92 per hour
  Open posting
• Marathon Petroleum
  Intern/Co-op - Refining Mechanical Engineer (Summer 2027)
  Robinson, Illinois +14 · Summer 2027 · co-op · $32.92 per hour
  Open posting
• Bernhard New
  Pre-Engineering Mechanical Intern
  Westmont, IL +1 · Paid
  Open posting
• Marathon Petroleum
  Intern/Co-op - Refining Mechanical Engineer (Spring 2027)
  Robinson, Illinois +14 · Spring 2027 · co-op · $32.92 per hour
  Open posting
• IMEG
  Mechanical Engineering Intern | Madison, WI
  Rock Island, IL +10
  Open posting
• Shure
  Mechanical Engineering Intern
  Niles, IL · Summer 2027
  Open posting

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Updated September 26, 2026. Listings are collected from public job boards several times a day; always check the posting on the employer's site before applying.