I will build a prod ready rag chatbot using langchain, fastapi, and your custom data

S
sameer_ramzan
S
sameer_ramzan
Muhammad S
build a prod ready rag chatbot using langchain, fastapi, and your custom data
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build a prod ready rag chatbot using langchain, fastapi, and your custom data

About this gig

Are you looking to build an AI chatbot that actually knows your business your docs, your data, your products?


I build RAG (Retrieval-Augmented Generation) chatbots that go beyond generic GPT wrappers. Your chatbot will retrieve answers directly from your custom knowledge base PDFs, websites, databases, or internal documents powered by LangChain, FastAPI, and your choice of LLM (OpenAI, Claude, or Gemini).


What I deliver:

  • Custom RAG pipeline built on LangChain or LlamaIndex
  • Vector database integration (Pinecone, Chroma, FAISS, or Weaviate)
  • FastAPI backend with clean REST endpoints
  • Support for OpenAI GPT-4, Claude, Gemini, or local Ollama models
  • Document ingestion pipeline (PDF, TXT, CSV, web scraping)
  • Conversation memory and context-aware responses
  • Clean, documented, production-ready code


Popular use cases: Customer support bots, internal knowledge assistants, HR policy chatbots, product Q&A systems, legal document Q&A, medical knowledge bases.


Why me? I've built RAG systems deployed in production using FastAPI and Docker. Every delivery includes clean code, requirements.txt, and a README so your team can maintain it. Message me before ordering to discuss your use case.

  • Bot type

    • Customer Service & Support
    • E-commerce & Payments
    • Social Media & Content
    • Scheduling & Assistance
    • Entertainment & Gaming
    • Learning & Development
    • Health & Wellness
    • Travel & Transportation
    • Food & Restaurant Services
    • News & Information Updates
    • Survey & Feedback Collection
    • Real Estate Assistance

  • AI engine

    • BERT
    • DALL·E
    • DeepSeek
    • Gemini
    • Generative Adversarial Networks (GANs)
    • Open AI GPT
    • Grok
    • LangChain
    • LLaMA
    • MidJourney
    • Stable Diffusion
    • TensorFlow
    • Variational Autoencoders (VAEs)
    • Claude.ai
    • ChatGPT
    • Ollama

  • Programming language

    • Python

  • Tools & frameworks

    • n8n
    • Pinecone
    • Hugging Face
    • LangChain

  • Platforms

    • WhatsApp
    • Telegram
    • Websites
    • Mobile Apps
    • Slack

Get to know Muhammad S

Muhammad S

Build production ready solutions powered by AI

  • FromPakistan
  • Member sinceDec 2024
  • Avg. response time1 hour

  • Languages

    Urdu, English
I'm Sameer, an AI engineer and data scientist based in Pakistan. I build production-ready AI systems, RAG chatbots, computer vision pipelines, and data dashboards—not demos that break when someone else runs them. My stack: Python, FastAPI, Docker, LangChain, Pinecone, PyTorch, and Pandas. I've shipped a brain tumor detection system using VGG16/ResNet50, an AI resume builder live on Netlify, and multiple RAG chatbots integrating OpenAI, Claude, and Gemini APIs. Every delivery comes with clean code and a working README. Message me before ordering—a quick chat upfront beats revision rounds later.

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