I will build an ai agent or rag chatbot with langchain and openai

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classy_design4u
C
classy_design4u
M Hamza Toor

Level 1

build an ai agent or rag chatbot with langchain and openai
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build an ai agent or rag chatbot with langchain and openai
Full Screen
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build an ai agent or rag chatbot with langchain and openaibuild an ai agent or rag chatbot with langchain and openaibuild an ai agent or rag chatbot with langchain and openai

About this gig

Need a custom AI agent or RAG chatbot trained on your own data?


I'm an AI Full-Stack Engineer with hands-on experience building production RAG systems using LangChain, OpenAI, and vector databases.


What I've built:

  • RAG-based semantic search using LangChain and vector databases for a production car marketplace platform
  • AI-driven CV screening system that scores documents against job criteria using NLP
  • Image-embedding visual search integrated into a live product


What I can build for you:

  • Custom RAG chatbots that answer questions from your documents, website, or database
  • AI agents that can search, reason, and take multi-step actions using your APIs
  • OpenAI (ChatGPT) integration into your existing app or website
  • Vector database setup (Pinecone, Chroma, pgvector) for fast, accurate retrieval


I write clean, tested code and communicate clearly throughout the project. Send me your data source and use case - I may ask a few clarifying questions, then I'll send you a clear scope and timeline.

  • AI engine

    • ChatGPT
    • Claude
    • Gemini
    • Azure OpenAI
    • Vertex AI
    • Meta Llama
    • Hugging Face
    • Ollama

  • Tools & frameworks

    • LangChain
    • LangGraph
    • LlamaIndex
    • CrewAI

  • AI solution type

    • AI agent
    • AI chatbot
    • Rag system
    • AI workflow
    • AI copilot
    • AI assistant
    • Internal AI tool

  • Purpose

    • Customer support
    • Knowledge management
    • Research
    • Workflow automation
    • Document processing
    • Data analysis
    • HR & recruiting
    • Ecommerce

Get to know M Hamza Toor

M Hamza Toor

AI Engineer building RAG Chatbots, AI Agents and Startup MVPs

4.9(149)

Level 1

  • FromPakistan
  • Member sinceFeb 2019
  • Avg. response time1 hour
  • Last delivery1 month

  • Languages

    Urdu, Punjabi, English
AI Full-Stack Engineer with 4+ years building production backends, APIs, and AI-powered apps using Python, Ruby on Rails, and LangChain. I build RAG chatbots, AI agents, semantic/visual search, and rapid MVPs for founders who need to validate fast. Recently built a RAG-based search engine and visual search for a car marketplace platform, plus an AI CV-screening tool. Full-stack: FastAPI, Rails, React, PostgreSQL, OpenAI/Stripe/PayPal integrations. Message me with what you're building - I'll tell you honestly if it's a fit.

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