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$
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I will build a rag chatbot to chat with your documents using langchain and openai
Mubashir Ahmed
About this gig
Do you want to chat with your documents, PDFs, or knowledge base using AI?
I will build a powerful RAG (Retrieval-Augmented Generation) chatbot that lets you ask questions to your own documents and get accurate, instant answers powered by LangChain and OpenAI.
What you get:
Custom RAG pipeline built with LangChain
Chat with PDFs, Word docs, Excel files, or websites
OpenAI / GPT-4 powered intelligent responses
Vector database setup (FAISS / Pinecone / Chroma)
Clean API or Streamlit web interface
Source citations AI shows where it found the answer
Production-ready, documented code
Perfect for:
Companies with large document libraries
Legal, medical, or HR teams
Customer support knowledge base
Internal company Q&A chatbot
Research and data analysis
Why choose me?
I don't just connect LLM to your files I build a proper RAG pipeline with chunking strategy, embedding optimization, and retrieval tuning so your chatbot actually gives correct answers.
Message me first to discuss your documents and use case I'll give you a custom plan!
Get to know Mubashir Ahmed
Mubashir Ahmed
Full Stack AI and LLM Engineer RAG Agents Fine Tuning and Production Deployment
- FromPakistan
- Member sinceFeb 2025
- Avg. response time1 hour
Languages
English, Urdu
Full Stack AI Engineer with 3+ years of experience
designing and deploying production-grade AI systems.
Core Expertise:
- LLMs, RAG Pipelines & Multi-Agent Systems
- Fine-Tuning with LoRA, QLoRA & Instruction Tuning
- LangChain, LangGraph, CrewAI & AutoGen
- OpenAI, Anthropic, Gemini, Groq & HuggingFace APIs
- FastAPI, Node.js, React.js & WebSockets
- PostgreSQL, MongoDB, Redis, ChromaDB & Pinecone
- AWS, Docker, Kubernetes & GitHub Actions CI/CD
I don't just write code — I architect scalable,
secure, and production-ready AI solutions.
Let's build something extraordinary. 🚀
FAQ
What types of documents can your RAG chatbot work with?
My RAG chatbot supports PDF, Word (DOCX), TXT, Excel, and website URLs. If you have a specific document type, message me first and I will confirm compatibility before you order
Will the chatbot give wrong or made-up answers?
My RAG system only answers from YOUR documents — it does not guess or make up information. It also shows the exact source so you can verify every answer.
Do I need an OpenAI API key to use this chatbot?
es, you will need your own OpenAI API key. This keeps your data private and secure. I will guide you step by step on how to get it — it takes less than 5 minutes and costs very little based on your usage. If you are not comfortable with OpenAI, I will integrate any other available model instead
Can I use this chatbot on my website or app?
Yes! Basic package includes a Streamlit UI. Standard and Premium packages include a REST/FAST API that you can connect to any website, app, or platform easily.
What if I am not satisfied with the result?
I offer revisions on every package. I also recommend messaging me before ordering so we discuss your exact requirements — this way the final result matches exactly what you need.
