I build and improve production-grade web applications and REST APIs using C#, .NET, ASP.NET Core, Angular, React, and TypeScript. I can design backend services, modernize legacy systems, integrate third-party APIs, optimize SQL Server or PostgreSQL queries, and deliver Azure or AWS deployments with CI/CD. You get clear communication, maintainable code, practical testing, and reliable part-time delivery. I am available 10–12 hours per week outside my full-time role.