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Brian Castelino
A Data & AI Engineer who turns vague ideas into clean, working systems, because someone’s got to 🤖
A Retrieval-Augmented Generation (RAG) chatbot that answers questions about SEC 10-K filings for major tech companies. The system processes and stores SEC filings (text + XBRL) and provides well-reasoned responses using Llama 3.3 model.
Built a Streamlit platform to identify fentanyl compounds using Python, FastAPI, and PostgreSQL. Scraped and cleaned 11K+ entries from public sources to help researchers find what they need.
Built a Chrome extension to clean and enhance AI prompts using free LLMs that runs locally. One click, better results, no backend.
Created as a starter kit for folks who want to build sleek, fast websites without losing their minds. Built with React, Vite, and Tailwind CSS.
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