Senior Software Engineer / .NET / Hybrid in Naperville

Kelly Services
📍 Naperville, IL, United States 💼 Full-time 🕒 Posted June 26, 2026

Job Description

$65 - $75

Software company looking to bring on a Senior Software Engineer. You’ll be key to driving modernization and growth by developing technical solutions that enhance business operations. You will play an impactful part in modernizing legacy systems, transitioning from VB.NET to C#, and evolving web platforms from ASP.NET to Blazor. You’ll also contribute to the ongoing development and improvement of the company’s ERP system.

This is a 6-month contract-to-hire position. They are located in the southwest suburbs of Chicago. The position requires onsite presence two days per week.

Required Skills & Experience

+ 6+ years of professional software engineering experience, including object-oriented programming using .NET technologies (C#/VB.Net)
+ 5+ years of hands-on experience with APIs and JSON
+ At least 3+ years in Blazor or Razor development and .NET Core
+ Solid experience with relational databases (e.g., Microsoft SQL Server or Oracle)...

Ready to Apply?

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Job Details

  • Location Naperville, IL
  • Job Type Full-time
  • Category other-general
  • Posted Date June 26, 2026
  • Application Deadline July 02, 2026