Senior .Net Developer

Must be local to St Louis, MO
- Onsite 5 days a week (63141)

We're hiring a mid-to-senior .NET Developer for an onsite contract role in St. Louis. The right candidate is comfortable across the full Microsoft stack — .NET, SQL Server, and ASP.NET — and can plug into an existing environment and contribute quickly. Experience with Microsoft Dynamics GP (Great Plains) is a strong plus but not required.

• Design, develop, and maintain applications using .NET, C#, and ASP.NET
• Build, optimize, and tune SQL Server databases — T-SQL, stored procedures, views, performance tuning
• Support and enhance existing web applications and internal tools
• Translate business requirements into clean, maintainable technical solutions
• Troubleshoot, debug, and resolve production issues across the stack
• Integrate with internal systems and third-party APIs as needed
• Where applicable, support or extend Dynamics GP customizations, integrations, or reporting

• 5+ years of professional .NET development (.NET Framework and/or .NET Core)
• Strong C# and ASP.NET (Web Forms and/or MVC)
• Solid SQL Server experience — T‑SQL, stored procedures, query optimization
• Strong communication skills; comfortable with technical and non-technical stakeholders
• Able to work fully onsite in St. Louis, MO

• Microsoft Dynamics GP (Great Plains) — customizations, integrations, or reporting
• ASP.NET MVC, Web API, or .NET Core
• Source control with Git, TFS, or Azure Dev Ops
• Reporting tools — SSRS, Crystal Reports, or Power BI