I will build custom ai chatbots, rag pipelines and llm integrations

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hamzaaumerr
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hamzaaumerr
Hamza Umer
build custom ai chatbots, rag pipelines and llm integrations
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build custom ai chatbots, rag pipelines and llm integrations

About this gig

Want to integrate cutting-edge AI into your existing software or build an intelligent chatbot that understands your proprietary business data?


I specialize in bridging the gap between standard web apps and advanced AI capabilities using LangChain, vector databases (Pinecone, Chroma), and custom LLM agents (OpenAI, Anthropic). I implement Retrieval-Augmented Generation (RAG) so your AI can answer queries accurately based exclusively on your documentation, PDFs, or databases without hallucinations.


What I Offer:


Custom AI Chatbot development for websites or apps

RAG (Retrieval-Augmented Generation) pipelines for private data querying

Integration with LangChain, LlamaIndex, and Vector DBs

API setup using Python, Node.js, and OpenAI/Claude APIs

Prompt engineering and behavior fine-tuning


Why Choose Me?


Deep understanding of backend architecture and AI workflows

Focus on data privacy, accuracy, and latency reduction

Production-grade code ready for real users


  • AI engine

    • ChatGPT
    • Claude
    • Gemini
    • Hugging Face

  • Tools & frameworks

    • LangChain
    • LangGraph
    • n8n

  • AI solution type

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

  • Purpose

    • Customer support
    • Lead generation
    • Knowledge management
    • Research
    • Document processing
    • Ecommerce
    • Education
    • Healthcare

Get to know Hamza Umer

Hamza Umer

MERN Stack and AI Integration Developer

4.8(4)
  • FromPakistan
  • Member sinceJun 2020
  • Avg. response time1 hour
  • Last delivery4 years

  • Languages

    English
As MERN Stack and AI Integration Expert, I bridge gap between robust full stack web development and cutting edge artificial intelligence. I specialize in building scalable web applications using MongoDB, Express.js, React.js and Node.js enhanced with advanced AI capabilities such as RAG (Retrieval-Augmented Generation), LangChain, vector databases and custom LLM agents. If you need a full stack SaaS platform built from scratch, smart automation integrated into your existing web app or an intelligent AI chatbot that understands your business data I deliver production ready solutions.

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