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Fiverr Pro
English
$
USD
I will build a custom ai agent chatbot with langchain and rag
Yeasin Arafat
About this gig
Looking to automate a business process or build an AI system that understands your data not just a scripted chatbot?
I build custom AI agents and RAG (Retrieval-Augmented Generation) chatbots using LangChain and LangGraph the same tools used by production teams.
️ What I build:
- AI Agents that use tools search the web, call APIs, query your database, take multi-step actions
- RAG Chatbots trained on YOUR documents using vector databases like Pinecone and ChromaDB
- Multi-Agent Systems with LangGraph stateful workflows, memory, human-approval steps
- Production deployment FastAPI backend, clean code, ready to connect to your app
Recent work:
- Multi-agent system helping Amazon sellers respond to account suspensions, with human review before anything is sent
- Voice assistant with wake-word detection and RAG-based memory
- Conversational commerce agent connected to Shopify/WooCommerce
- PDF chatbot with hybrid search and source citations
I write clean, documented, maintainable code not something that breaks in production.
Message me before ordering so I can scope your project correctly.
Get to know Yeasin Arafat
Yeasin Arafat
AI AGENT DEVELOPER
- FromBangladesh
- Member sinceAug 2022
Languages
Bengali, Hindi, English
I am a dedicated AI Engineer specializing in developing production-ready autonomous AI agents and stateful workflow architectures. Using LangChain and LangGraph, I build intelligent systems that handle complex business operations, multi-actor coordination, and advanced RAG pipelines.
My engineering focus is on reliability, long-term state management, and seamless system integrations. I translate complex data into practical, secure automation tools that scale cleanly. Let’s collaborate to turn your workflows into high-performing, autonomous AI solutions.
My Portfolio
FAQ
Do I need to provide API keys?
Yes — you'll need your own OpenAI/Anthropic and vector database API keys. I'll walk you through getting and securing them if you don't have them yet.
What's the difference between a simple chatbot and what you build?
A simple chatbot follows a fixed script. My agents can search, use tools, check a database, and make decisions based on context — closer to a real assistant than a FAQ bot.
Will you deploy this for me?
Standard and Premium packages include deployment as a working API (FastAPI) you or your developer can connect to your site or app.
I don't know exactly what I need — can you help me figure it out?
Yes, message me with your goal and I'll recommend the right scope before you order.
