I will build an ai chatbot rag system or ai agent using python


About this gig
Are you looking to build an AI chatbot, RAG system, AI agent, or LLM-powered application?
Im an AI/ML and Full-Stack Developer experienced in building AI applications using Python, LangChain, LangGraph, FastAPI, vector databases, and modern LLM APIs.
I can help you turn your AI idea into a working application with reliable retrieval, tool integration, backend APIs, and a user-friendly interface.
What I can build:
- RAG (Retrieval-Augmented Generation) applications
- AI chatbots and document Q&A systems
- AI agents and agentic workflows
- PDF/document-based AI assistants
- LLM API integration
- FastAPI AI backends
- AI features for existing web applications
- Tool calling and external API integration
Technologies I work with:
- Python
- LangChain
- LangGraph
- FastAPI
- PostgreSQL / pgvector
- Next.js / React
- Gemini and other LLM APIs
What you can expect:
- Clean and maintainable implementation
- Proper document processing and retrieval
- Relevant and grounded AI responses
- API-based architecture
- Clear communication and progress updates
- Deployment assistance when required
Please message me before placing an order so I can understand your requirements and recommend the appropriate architecture.
Get to know Arfat
Full Stack Developer and AI ML Engineer
- FromBangladesh
- Member sinceMay 2025
Languages
Bengali, English
My Portfolio
FAQ
Can you build a RAG chatbot for my PDFs?
Yes. I can build a document-based RAG system that processes your documents and allows users to ask questions about their content.
Can you build an AI agent with tools?
Yes. I can create agentic workflows that allow an LLM to use tools such as APIs, search, databases, or other functions.
