I will build a rag pipeline for your nestjs, python or java backend

Backend engineer with hands-on production experience building RAG pipelines (document embeddings + chat completions with OpenAI) inside a NestJS monorepo, including multi-tenant data isolation. I handle the tricky parts chunking/embedding strategy, retrieval tuning, token-limit and model-compatibility issues, and wiring it cleanly into your existing API. Good fit if you want to add "chat with your docs" or AI search to an existing product.