Syed S.

I help teams build, improve and maintain SaaS applications with C#, ASP.NET Core, React and Azure—including integrating AI features into existing products. With 8+ years of software development experience, I’ve worked across healthcare SaaS, financial systems and enterprise applications. My experience includes backend services, frontend development, database integration, and LLM-powered transcription and summarization. I can help you: • Build backend services and REST APIs with ASP.NET Core. • Develop interfaces with React, TypeScript or Angular. • Integrate OpenAI and Claude into application workflows. • Diagnose bugs and modernize existing .NET applications. • Work with Entity Framework, SQL Server, PostgreSQL, Docker and Azure. My completed Upwork engagements have received 5-star feedback, with clients highlighting timely delivery, quality and solving complex bugs. Based in Frankfurt, Germany, I focus on clear communication and maintainable code. Send me your current stack, the problem you need solved and your timeline so we can define the next steps.