rama c.

Senior .NET Developer with 15+ years of experience building ASP.NET Core applications, REST APIs, SaaS platforms and business systems. 100% Job Success, 6,600+ Upwork hours, $100K+ earned and 69+ completed projects. I help businesses build new .NET applications, extend existing systems, modernize legacy applications and integrate third-party APIs. CORE EXPERTISE • C# / .NET / ASP.NET Core • ASP.NET MVC & Web API • REST API development • SQL Server & database development • Entity Framework Core • Microsoft Azure • Microservices & integrations • Legacy .NET Framework / ASP.NET modernization • Payment and third-party API integrations • eCommerce & SaaS development • nopCommerce, Shopify HOW I CAN HELP ✓ Build new ASP.NET Core applications ✓ Develop REST APIs and backend systems ✓ Maintain and extend existing .NET applications ✓ Modernize legacy ASP.NET / .NET Framework applications ✓ Optimize SQL queries and database performance ✓ Integrate third-party APIs and payment gateways ✓ Deploy .NET applications to Azure ✓ Develop eCommerce and custom business applications ✓ Add AI capabilities to existing .NET applications AI INTEGRATION I can integrate AI capabilities into existing .NET applications using technologies such as OpenAI, Azure OpenAI and LLM-based APIs, including AI assistants, chatbots, document/Q&A workflows and application automation. WHY CLIENTS HIRE ME • 15+ years of real-world software development experience • Extensive experience working with existing and legacy .NET codebases • Strong understanding of business requirements and production systems • Comfortable taking ownership of projects from requirements through deployment • Experience across APIs, databases, integrations and cloud applications • Focus on practical, maintainable solutions rather than unnecessary complexity If you have an existing .NET application that needs development, debugging, modernization or new functionality—or you're building a new ASP.NET Core application—send me the details and I'll help you determine the best technical approach.