AI Agent Developer | LLM, RAG & OpenAI API Integration

We're seeking an experienced AI Engineer to build a small AI-powered MVP using LLMs, RAG, and OpenAI APIs. The ideal candidate has experience with: OpenAI API / ChatGPT Large Language Models (LLMs) Retrieval-Augmented Generation (RAG) AI Agents LangChain or LlamaIndex Python & FastAPI Vector Databases API Integrations Scope Build an AI chat assistant Implement a RAG pipeline for document retrieval Develop Python/FastAPI backend APIs Integrate AI agent workflows with external APIs Deliver clean, documented source code