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.NET Developer
<p>We are seeking an experienced <strong>Senior .NET Developer</strong> to support and enhance a mission-critical enterprise application built on a mixed <strong>VB.NET and C#</strong> codebase. This role is ideal for a hands-on developer with deep .NET experience who can quickly ramp up in a complex, partially modernized environment. The ideal candidate will bring strong problem-solving skills, experience working with legacy systems, and the ability to deliver fixes, enhancements, and new functionality with minimal onboarding.</p><p><br></p><p><strong>Key Responsibilities</strong></p><ul><li>Analyze, maintain, and enhance existing application modules written in VB.NET and C#</li><li>Complete migration of remaining VB.NET components to C#</li><li>Deliver bug fixes, performance improvements, and new features in a timely manner</li><li>Work with SQL Server, including queries, stored procedures, and data integration logic</li><li>Support integrations with SharePoint, Excel/VBA, BI tools, and Power Automate workflows</li><li>Participate in builds and deployments using Azure DevOps pipelines</li><li>Collaborate with stakeholders to gather requirements and translate them into technical solutions</li><li>Ensure code quality, reliability, and maintainability across the application stack</li></ul><p><br></p>
<p><strong>Requirements</strong></p><ul><li>8+ years of experience in .NET development, including VB.NET and C#</li><li>Strong understanding of IIS and Windows Server hosting environments</li><li>Solid experience with SQL Server, including query writing, optimization, and stored procedures</li><li>Familiarity with Azure DevOps build and deployment pipelines</li><li>Experience working with and modernizing legacy codebases</li><li>Experience integrating with SharePoint and Excel/VBA</li><li>Knowledge of Power Automate workflows and BI/reporting tools</li><li>Ability to quickly understand existing architecture and deliver results with minimal guidance</li><li>Strong communication skills and ability to collaborate across technical and business teams</li></ul><p><strong>Preferred Qualifications</strong></p><ul><li>Experience with migration or modernization projects</li><li>Background supporting mission-critical enterprise applications</li></ul><p><br></p>
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  • La Jolla, CA
  • onsite
  • Temporary / Contract
  • 55 - 75 USD / Hourly
  • <p>We are seeking an experienced <strong>Senior .NET Developer</strong> to support and enhance a mission-critical enterprise application built on a mixed <strong>VB.NET and C#</strong> codebase. This role is ideal for a hands-on developer with deep .NET experience who can quickly ramp up in a complex, partially modernized environment. The ideal candidate will bring strong problem-solving skills, experience working with legacy systems, and the ability to deliver fixes, enhancements, and new functionality with minimal onboarding.</p><p><br></p><p><strong>Key Responsibilities</strong></p><ul><li>Analyze, maintain, and enhance existing application modules written in VB.NET and C#</li><li>Complete migration of remaining VB.NET components to C#</li><li>Deliver bug fixes, performance improvements, and new features in a timely manner</li><li>Work with SQL Server, including queries, stored procedures, and data integration logic</li><li>Support integrations with SharePoint, Excel/VBA, BI tools, and Power Automate workflows</li><li>Participate in builds and deployments using Azure DevOps pipelines</li><li>Collaborate with stakeholders to gather requirements and translate them into technical solutions</li><li>Ensure code quality, reliability, and maintainability across the application stack</li></ul><p><br></p>
  • 2026-04-23T00:00:00Z

.NET Developer Job in La Jolla, CA | Robert Half