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Summer 2027 C# internships in Illinois
As of November 11, 2026, Intern Insider listed 10 open Summer 2027 internships in Illinois that mention C#, from 9 companies. The listings that mention C# are Software Engineering, Consulting & Strategy and Cybersecurity & IT roles at employers such as GCM Grosvenor, Belvedere Trading, LLC and Charles River Associates. None of these listings is marked remote. Browse the roles by employer below. You can read the full posting free, then apply in minutes with a free account.
10 open roles · 9 companies · 2 added this week
GCM Grosvenor2 open
Charles River Associates1 open
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As of November 11, 2026, Intern Insider listed 10 open Summer 2027 internships in Illinois that mention C#, from 9 companies.
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