I will build your backend development with dot net, python, ai

J
jayrajpara
J
jayrajpara
Jay Rajpara

About this gig

With 13+ years building production backend systems and hands-on expertise in modern AI/LLM integration I help businesses build backends that are fast, reliable, and future-ready.

What I build:

  • REST & real-time APIs in ASP.NET Core / C# or Python (FastAPI/Flask)
  • AI-powered features: RAG chatbots, document Q&A assistants, natural-language-to-SQL tools, LLM integrations (OpenAI, Claude, Gemini, or fully local/private models via Ollama)
  • Real-time systems: live chat, notifications, and dashboards using SignalR, WebSockets, or Socket.IO
  • gRPC microservices and clean, contract-first API design
  • Cloud deployment on AWS, containerized with Docker

Why work with me:

  • 13+ years shipping production systems across healthcare, fitness, travel, and e-commerce
  • Not just theory I've built and load-tested a real-time RAG system handling 5,000+ queries at ~26ms average latency
  • Comfortable owning a project end-to-end: architecture, API, database, deployment
  • Clear communication, realistic timelines, no scope surprises

Send me a message with your requirements and I'll get back to you with a clear plan and timeline.

Get to know Jay Rajpara

Jay Rajpara

Senior Software Developer

  • FromIndia
  • Member sinceSep 2015
  • Languages

    Gujarati, English, Hindi
I am a Senior Software Developer with over 13 years of experience specializing in real-time systems, backend architecture, and cloud-native applications. I have deep expertise in the .NET ecosystem and C#, complemented by hands-on experience in Python, FastAPI, and AI/LLM integration for production-style projects.