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.Net React Developer/Lead

Spar Information Systems · Lisle, DuPage County

SeniorOn-siteEnglish

About the role

From the employer’s listing · Spar Information Systems · posted 5 August 2026

Responsibilities include: Min 6 yrs of development experience with / .NET Core using C# (and/or ) in Visual Studio IDE Min 6 yrs of development experience with ReactJS Experience in developing Web APIs in .NET Core Experience in writing extensive unit tests and Web API testing. Good Understanding of security, performance, and scalability considerations Experience modernizing legacy Web Forms applications to .NET Core React Strong understanding of HTML, XML, CSS, JSON, JavaScript & jQuery Exper…

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