I will build rag ai chatbot with vector database to chat with your documents

M
mezbahur_rahman
M
mezbahur_rahman
Mazbahur
build rag ai chatbot with vector database to chat with your documents
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build rag ai chatbot with vector database to chat with your documents
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build rag ai chatbot with vector database to chat with your documentsbuild rag ai chatbot with vector database to chat with your documentsbuild rag ai chatbot with vector database to chat with your documents

About this gig

Want an AI chatbot that answers questions from YOUR documents accurately, with sources?


I build RAG (Retrieval Augmented Generation) systems that let you chat with your PDFs, policies, contracts, manuals and knowledge bases. Built with Python/FastAPI, vector databases (pgvector/Pinecone) and Claude or OpenAI designed for accuracy, not hallucination.


WHAT YOU GET:

- AI chatbot trained on your documents only it answers from your data, with citations

- Vector database setup with smart chunking for accurate retrieval

- Clean chat interface (web-based) or API for your existing app

- FastAPI backend with documentation

- Your data stays yours private, not used to train public models


PERFECT FOR:

- Legal, compliance and policy documents

- Customer support knowledge bases

- Internal company documentation

- Course content and manuals


WHY ME:

- 10+ years backend engineering I build production systems, not demos

- Fintech background: I understand accuracy and data sensitivity

- 5.0 rating with repeat clients


Message me before ordering with a sample of your documents I'll confirm the right package in 10 minutes. I reply within an hour.

  • AI engine

    • ChatGPT
    • Claude
    • Gemini
    • Azure OpenAI
    • OpenRouter

  • Tools & frameworks

    • LangChain
    • LlamaIndex

  • AI solution type

    • AI chatbot
    • Rag system

  • Purpose

    • Customer support
    • Knowledge management
    • Document processing
    • Customer service
    • Finance
    • Education
    • Healthcare
    • Legal

Get to know Mazbahur

Mazbahur

Flutter Developer, iOS and Android Apps with AI Features

5.0(9)
  • FromBangladesh
  • Member sinceApr 2020
  • Avg. response time1 hour
  • Last delivery7 months

  • Languages

    English
Flutter developer, 7+ years, building production iOS and Android apps plus the Python/Node backends behind them. 5.0 from 9 orders, zero cancellations, one client who came back five times. I build Flutter apps - real-time chat, WebRTC calling, e-learning, tracking - five live on both stores. Backends in FastAPI, Node.js, Laravel, PostgreSQL. AI features: RAG document chatbots, vector search, Claude/OpenAI. Web in Next.js and React. Fixed scope, fixed price, a running build every week. Honest timelines, clean documented code, replies within the hour.

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