I will build an ai chatbot with rag and langchain for your data

H
hafizusman12
H
hafizusman12
Muhammad Usman
build an ai chatbot with rag and langchain for your data
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build an ai chatbot with rag and langchain for your data

About this gig

Want a chatbot that actually knows your business? I build AI chatbots and agents that answer questions from your own documents, website or database, using RAG, LangChain and models like OpenAI GPT and Claude.


I'm a Python and AI engineer with 4+ years of experience. I've built production AI systems including an LLM-powered real estate assistant, an AI document analysis platform and AI role-play assessments for a recruitment app.


What I can build for you:

  • Chatbots that answer from your PDFs, docs or website (RAG)
  • AI agents that use tools and APIs (LangChain, LangGraph, MCP)
  • Vector search with Pinecone, FAISS or Weaviate
  • Grounding and citations to reduce wrong answers
  • Chat UI for your website, plus WhatsApp, Telegram or Slack
  • FastAPI backend with Docker and cloud deployment
  • Voice AI with Vapi, Retell or ElevenLabs


Why work with me:

  • Production-ready code, not just a demo
  • Clear updates and a walkthrough at delivery
  • Support after delivery


Please message me before ordering so we can discuss your data and use case.

  • Bot type

    • Customer Service & Support
    • E-commerce & Payments
    • Learning & Development
    • Real Estate Assistance

  • AI engine

    • Gemini
    • Open AI GPT
    • LangChain
    • Claude.ai
    • Vapi.ai

  • Programming language

    • JavaScript
    • Python
    • React

  • Tools & frameworks

    • n8n
    • Pinecone
    • Hugging Face
    • Telegram API
    • LangChain

  • Platforms

    • WhatsApp
    • Telegram
    • Websites
    • Mobile Apps
    • Slack

Get to know Muhammad Usman

Muhammad Usman

Full Stack Python and AI Engineer, MCP, Agentic AI and RAG

  • FromPakistan
  • Member sinceNov 2021
  • Avg. response time1 hour

  • Languages

    English
I'm a full stack Python and AI engineer with 4+ years of experience. I build MCP servers and agentic AI workflows with LangGraph, AI chatbots and RAG pipelines with LangChain, and full stack web apps with Django, FastAPI and React. I also build web scraping and ETL data pipelines and deploy on AWS and GCP with Docker, Terraform and CI/CD. Recent work includes an MCP data layer with 30+ tools for a Dubai real estate platform, SaaS apps with Stripe billing and AI document analysis tools. Expect clean code, clear updates and on-time delivery. Message me before ordering to scope your project.

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