I will build ai rag chatbot using langchain openai fastapi

Y
yashshah0333
Y
yashshah0333
Yash Shah
build ai rag chatbot using langchain openai fastapi
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build ai rag chatbot using langchain openai fastapi

About this gig

Looking for a reliable AI developer to build a production-ready RAG (Retrieval-Augmented Generation) chatbot? You've come to the right place.

Hi! I'm Yash, a Python Developer and Data Scientist with 3+ years of professional experience building AI-powered applications, backend systems, and machine learning solutions.

I specialize in developing intelligent RAG applications that allow users to chat with PDFs, documents, knowledge bases, and custom business data using modern LLMs like GPT, Claude, and Llama.

Whether you're building an internal knowledge assistant, customer support chatbot, document search system, or AI research assistant, I'll help you design a scalable and production-ready solution tailored to your needs.


What I can build for you:

*AI RAG Chatbots.

*PDF & Document Chat Applications.

*Knowledge Base AI Assistants.

*Semantic Search Systems.

*LangChain & FastAPI Applications.

*OpenAI, Claude & Llama Integrations.

*Vector Database Integration (ChromaDB, FAISS, Pinecone).

*Multi-document Question Answering.

*REST APIs.

*Secure Authentication.

*Docker Deployment.


Technologies I work with

*Python

*LangChain

*FastAPI

*OpenAI

*Claude

*Llama

*FAISS

*PostgreSQL

*Docker

*AWS

  • AI engine

    • ChatGPT
    • Claude
    • AWS Bedrock
    • Grok
    • Meta Llama
    • Hugging Face
    • OpenRouter
    • Together AI

  • Tools & frameworks

    • LangChain
    • LangGraph
    • Microsoft Semantic Kernel
    • OpenAI Agents SDK
    • Langflow

  • AI solution type

    • AI agent
    • AI chatbot
    • Rag system
    • AI workflow

  • Purpose

    • Customer support
    • Sales assistance
    • Lead generation
    • Marketing
    • Content creation
    • Knowledge management
    • Workflow automation
    • Data analysis

Get to know Yash Shah

Yash Shah

Data Scientist, Fraud Detection,XGBoost,Python and ML Solutions

  • FromIndia
  • Member sinceJul 2026

  • Languages

    English
Data Scientist & Python Developer with 3+ years building production ML solutions across banking, retail, and telecom. I specialize in fraud detection, predictive modeling, and end-to-end deployment — not just notebooks, but systems that run in real business environments. Currently building real-time fraud detection models (XGBoost, ~97% ROC AUC) for a US banking client. I cover the full pipeline: SQL/ETL, XGBoost/TensorFlow, Flask/Azure deployment, and Power BI/Streamlit reporting. IABAC Certified Data Scientist. Let's solve your actual problem, not just prototype one.

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