I will build an ai chatbot with rag using openai and langchain

Want an AI assistant that actually knows your business? I build custom AI chatbots and RAG (Retrieval-Augmented Generation) apps that answer from your own documents, website or database, using OpenAI, Claude, Gemini and LangChain. I have 6+ years of experience as a Technical Lead and have built production LLM systems with tool-calling agents, hybrid search, voice AI and evaluation tests.

What you get:

- Chatbot that answers from your PDFs, docs, site or database

- Vector search setup (Pinecone, Qdrant, Elasticsearch, pgvector)

- Guardrails and fallbacks so the bot does not make things up

- Chat widget for your website, WhatsApp or Slack

- Optional CRM or database integration, user login and admin panel

- Optional voice (speech to text and text to speech) and multi-language

- Clean API in Node.js or Python, deployed on AWS

- Source code and setup guide

Why work with me:

- Real production experience with LLM apps at scale

- Focus on accuracy, cost and response speed

- Clear updates and honest timelines

Message me with your use case and sample data before ordering and I will recommend the right package.