I will build full stack custom chatbot and ai rag application


About this gig
Are you looking for a secure, fast, and intelligent AI Application powered by RAG (Retrieval-Augmented Generation) and custom LLMs? You've come to the right place!
I specialize in building production-ready AI backends and full-stack applications using Python FastAPI, Ollama, LangChain, and cross-platform Flutter frontend.
Whether you need a document-based Question Generator, a custom Knowledge-Base Chatbot, or a complete Educational/Enterprise AI System, I can build it for you with local privacy (Ollama) or cloud models (OpenAI/Claude)
What I Offer:
Custom RAG Pipelines (PDF/Document chunking, vector embeddings, cosine similarity)
Local LLM Setup (Ollama, Nomic Embed, LLaMA 3, Mistral) for 100% data privacy
FastAPI Backend (Clean architecture, high-speed asynchronous APIs, JWT Authentication)
Database Integration (PostgreSQL, MySQL, SQLite with SQLAlchemy ORM)
Cross-Platform Frontend (Flutter for Android, iOS, and Web)
Swagger / OpenAPI documentation & Dockerized deployment ready
Tech Stack:
Backend: Python, FastAPI, SQLAlchemy, Pydantic
AI/NLP: Ollama, RAG, Embeddings, Vector Search, OpenAI API
Frontend: Flutter (Dart) Mobile & Web
Database: PostgreSQL, MySQL, SQLit
Get to know M Ahsan Shahid
Aspiring AI and Data Science Engineer, LLMs, Generative AI, Deep Learn
- FromPakistan
- Member sinceJun 2022
Languages
English, Urdu
FAQ
Can we run the AI model completely offline without API fees?
Yes! Using Ollama and local embedding models (e.g., nomic-embed-text, LLaMA), your application can run 100% locally on your server/machine with zero recurring API costs.
Will I get the full source code and documentation?
Yes, you will receive full clean source code, setup instructions, and Swagger API documentation.
Can you connect the backend with my existing frontend?
Absolutely. The FastAPI backend is built with standard RESTful APIs and CORS enabled, ready to integrate with React, Vue, Flutter, Next.js, or any frontend.

