I will build a custom rag chatbot with your data and vector database

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Shihan Rahman

About this gig

Need an AI chatbot that answers from your trusted knowledge instead of relying only on general model training?


I will build a custom RAG chatbot using your approved documents, website content, knowledge base, or business data. Your content is prepared, chunked, embedded, stored in a vector database, and retrieved through semantic search before the model creates an answer.


Possible solutions:

Website or SaaS knowledge chatbot

Customer-support FAQ assistant

Internal company knowledge assistant

Product-documentation chatbot

Training or research assistant

Chatbot with citations and human handoff


Depending on your package, delivery can include PDF, DOCX, TXT, CSV, HTML, or website ingestion; metadata filtering; reranking; citations; memory; roles; feedback; APIs; tests; Docker; documentation; and deployment support.


Technologies may include Python, FastAPI, GPT, Claude, Gemini, LangChain, LangGraph, LlamaIndex, Pinecone, Qdrant, Weaviate, Chroma, pgvector, and Redis.


Please contact me before ordering if your data is private, large, multilingual, frequently updated, or spread across several systems. Third-party service and hosting fees are not included.

Get to know Shihan Rahman

Shihan Rahman

AI Engineer and Automation Specialist

  • FromBangladesh
  • Member sinceDec 2019
  • Avg. response time1 hour
  • Languages

    Bengali, English, Hindi, Urdu
I am an AI Engineer and Systems Architect who designs, builds, deploys, and operates AI, automation, API, and SaaS systems. I create AI agents, RAG chatbots, voice assistants, workflows, REST APIs, data pipelines, and full-stack applications. I handle architecture, development, databases, testing, security, Docker, GitHub, CI/CD, Linux VPS, Nginx, monitoring, and support. I integrate payments, CRM, email, calendars, telephony, messaging, webhooks, and third-party APIs. Stack: Python, FastAPI, LangGraph, OpenAI, Claude, Vector DB, PostgreSQL, Redis, React, Next.js, Pinecone, Qdrant, and n8n.

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