AI Engineer Needed for OpenAI RAG Chatbot

We are looking for an experienced AI Engineer to build a document-based RAG chatbot for our SaaS platform. Users should be able to upload documents and ask questions based on their data. The chatbot should provide accurate answers with source references. ### Requirements * OpenAI API and prompt engineering * RAG, embeddings, and vector databases * Python/FastAPI or Node.js * React or Next.js integration * Document processing and semantic search * Chat history and user data separation Please share a relevant AI chatbot or RAG project, your preferred tech stack, estimated timeline, and budget.