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ZipStaff Inc.

Senior .NET Full-Stack Application Developer

Clearwater, Florida•Contract
$52 - $54 hourly
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About the Job
Job Title: Senior .NET Full-Stack Application Developer
Location: Clearwater, FL (On-site)
Employment Type: Contract-to-Hire (W2 through ZipStaff — No C2C or 1099)

About the Opportunity:
ZipStaff is seeking two Senior .NET Full-Stack Application Developers to support and modernize enterprise applications for a large local government / public-sector organization in the Tampa Bay area.

This is a hands-on development and production-support role. You must work across legacy Microsoft desktop / client-server apps and modern Blazor web applications — UI, application, API/service, and database. Specialists who only do web, or only do desktop, will not be a fit.

What You’ll Do:
  • Design, develop, enhance, maintain, and support enterprise applications across the Microsoft .NET stack.
  • Support existing desktop / client-server applications (VB.NET, WPF and/or Windows Forms).
  • Build modern Blazor web applications.
  • Integrate applications with WCF / REST APIs and SQL Server.
  • Troubleshoot production issues across UI, application, API, and database layers.
  • Perform root-cause analysis and implement durable fixes — not temporary patches.
  • Contribute to application modernization.
  • Work with Git and/or TFS / Azure DevOps and participate in CI/CD deployments.

Required Qualifications:
  • 8+ years of hands-on Microsoft .NET application development.
  • Strong C# and .NET / .NET Framework.
  • Strong hands-on Microsoft Blazor.
  • Working proficiency in VB.NET — must maintain and enhance existing VB.NET applications.
  • Experience with WPF and/or Windows Forms.
  • Strong Microsoft SQL Server.
  • WCF and RESTful APIs / web services.
  • Git and/or TFS / Azure DevOps.
  • Working knowledge of CI/CD pipelines and deployments.
  • Strong troubleshooting and root-cause analysis across multiple application layers.
  • Ability to work on-site in Clearwater, FL.
  • Must be legally authorized to work in the United States without sponsorship now or in the future.

Preferred Qualifications:
  • Azure / Azure DevOps.
  • Entity Framework / EF Core.
  • Power BI.
  • Automated / unit testing.
  • Application performance tuning.
  • Enterprise integration and large, complex application support.

About ZipStaff:
ZipStaff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches and long-term success.

To apply, please submit your resume highlighting C#, Blazor, VB.NET, WPF/WinForms, SQL Server, and production support work.
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