I will build a rag chatbot on your documents using langchain and openai API

P
pratikkumar2607
P
pratikkumar2607
Pratik
build a rag chatbot on your documents using langchain and openai API
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build a rag chatbot on your documents using langchain and openai API

About this gig

Want your users to chat with your documents, 

website, or database and get accurate answers? 

I'll build it for you.


I'm a Full Stack AI Engineer building production 

RAG systems for the Government of India (NeGD, MeitY) 

processing 17,000+ records with BERT, FAISS, and 

LangChain with 80%+ efficiency gains.


WHAT I WILL BUILD

RAG pipeline on your PDFs, docs or database

Semantic search using FAISS or pgVector

LangChain memory for multi-turn conversations

OpenAI / Claude API integration

Clean chat UI with React or Next.js

REST API endpoint via FastAPI

AWS or Vercel deployment (Premium)


USE CASES I BUILD FOR

Customer support chatbot on your docs

Internal knowledge base assistant

Legal / HR document Q&A system

Product manual chatbot

Research paper assistant


WHY CHOOSE ME

Built production RAG for Govt. of India

1.5+ years AI engineering experience

Deep LangChain & vector DB expertise

Clean, well-documented, scalable code

On-time delivery, clear communication


Let's build your AI chatbot.

  • Application Type

    • Web Application

  • Desktop Frameworks

    • Tkinter

  • AI Type

    • Chat
    • Delivery
    • Other

  • Programming Language

    • Python

  • Web Frameworks

    • React
    • Flask

  • No & Low-Code Builders

    • Lovable

Get to know Pratik

Pratik

Full Stack AI Engineer, GenAI, LangChain, RAG

  • FromIndia
  • Member sinceJan 2021
  • Avg. response time3 hours

  • Languages

    English, Hindi
Full Stack AI Engineer with 1.5+ years of experience building production GenAI systems, RAG pipelines & agentic AI workflows. Currently at NeGD, MeitY (Govt. of India) — processing 17,000+ records with BERT, FAISS & LangGraph, achieving 80%+ efficiency gains. I specialize in RAG Chatbots, LLM Apps (LangChain, LangGraph, Claude/OpenAI API), Agentic AI Systems, FastAPI & NestJS backends, Next.js full-stack apps, Python automation & AWS deployment. Delivered production-grade AI for senior Govt. of India leadership. Clean code, clear communication, on-time delivery. Let's build.

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