Hello, I'm Samantha An

A trade backtesting app with a Python/FastAPI engine covering 7 rule-based strategies (MA crossover, MACD, RSI, Bollinger Bands, and more). A strategy registry auto-generates each UI form, showing visual results of the backtest.

Note: I am using a free rendering service for this demo, so the first load may take a few seconds.

An AI writing agent that matches your personal style. A Chrome extension talks to a Python/FastAPI backend running an end-to-end RAG pipeline — chunking, Gemini API embeddings, and FAISS indexing — to condition LLM output on your own writing samples. A pre-launch security audit replaced a shared global API client with a per-request architecture, closing a cross-user data leak.

A Chrome extension + FastAPI backend that turns product pages into structured data across three storefronts. A layered extraction pipeline, then CSS selectors — recovers title, price, images, and item IDs even as page structure shifts, while a multi-stage regex pipeline classifies condition and grade across inconsistent listing formats. Results auto-export to Google Sheets, cutting manual lookup from minutes to seconds.