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C# internships in the United States
As of November 12, 2026, Intern Insider listed 359 open internships in the United States that mention C#, from 224 companies. The listings that mention C# are Software Engineering, Data Science & Analytics and Data & Software Engineering (Infra) roles at employers such as Rockwell Automation, IBM and Corning Incorporated. 358 listings state that the role is paid. This page does not invent a salary when the listing is silent. Browse the roles by employer below. You can read the full posting free, then apply in minutes with a free account.
359 open roles · showing the 60 most relevant · 45 companies · 52 added this week
Lockheed Martin5 open
Boston Scientific3 open
Trimble Inc.3 open
Keysight Technologies2 open
L3Harris Technologies2 open
Optimum2 open
Rockwell Automation2 open
Daiichi Sankyo Japan1 open
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As of November 12, 2026, Intern Insider listed 359 open internships in the United States that mention C#, from 224 companies.
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