Rajneesh K.
AI-Enabled .NET Developer | ASP.NET Core, Angular/React | SaaS & APIs
🏆 Top Rated Plus | 100% Client Feedback | 3000+ Hours I help businesses build fast, scalable .NET applications—and extend them to web, mobile, and AI-powered systems when needed. With 7+ years of experience, I’ve delivered 50+ applications used by startups and enterprises, including platforms handling 1M+ users and millions of daily transactions. If you need someone who can design, build, and scale your system end-to-end, I can help. 💡 What I Can Help You With Build or improve ASP.NET Core / Web API / microservices Develop modern Angular or React frontends Build cross-platform apps using .NET MAUI , Blazor (Android, iOS, Windows) Add AI features (chat, automation, semantic search, workflows) Fix performance issues (30–40% improvements in real projects) Design scalable architecture for SaaS or enterprise systems 🧠 Practical AI Integration I focus on AI where it actually creates business value: AI-powered APIs and backend workflows Semantic search with vector databases (Azure AI Search, Pinecone) Automation to reduce manual work Secure, production-ready integrations (OpenAI, Azure OpenAI) ⚙️ Core Tech Stack Backend: C#, ASP.NET Core, Web API, Entity Framework, Microservices Frontend: Angular, React, JavaScript Mobile: .NET MAUI (cross-platform apps) Cloud & DevOps: Azure, AWS, Docker, CI/CD Database: SQL Server (performance optimization), MySQL 📈 Proven Results 50+ applications delivered Systems handling 1M+ users & high-scale traffic Database performance improved by 40%+ Experience working across 100+ repositories in team environments 🎯 What It’s Like Working With Me Clean, scalable architecture (not quick fixes) Clear communication and reliable delivery Strong debugging and performance optimization Practical solutions focused on your business goals 🚀 Let’s Talk Whether you’re: Launching a new SaaS Building a web + mobile app (MAUI) Adding AI features Fixing performance issues Send me a message, and I’ll suggest a practical approach based on your goals.