AI Chatbot Developer

Looking for an AI Chatbot Developer, Fine Architects We need an experienced AI developer to build a smart, reliable chatbot for our architecture business. It should act as a virtual representative of the company answering FAQs, explaining our services, sharing verified business info, engaging visitors naturally, and helping qualify potential clients. Key requirement: the chatbot needs to be well-grounded and low on errors. It should respond strictly from our approved knowledge base and clearly say when it doesn't have enough information, rather than making things up. Suggested Tech Stack LLM: OpenAI GPT, Claude Backend: Python + FastAPI or Node.js Knowledge/RAG: LangChain or LlamaIndex + vector database like Pinecone, pgvector Frontend: React, Next.js chatbot widget Database: PostgreSQL Deployment: AWS, Vercel, Docker Open to your suggestions if you have a better production-ready setup in mind. Please share examples of similar RAG-based chatbots or agents you've built, and briefly describe your approach to preventing errors/hallucinations.