Senior .NET Full-Stack Application Developer

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 .
• Strong WCF and RESTful APIs / web services .
• Strong 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.