Harry Patsourakos

A full-stack platform that tracks SEC Form 4 insider trading filings and sends personalized email alerts when executives, directors, and major shareholders buy or sell company stock.

• What it does: Parses SEC Form 4 filings in real-time, extracts transaction data, sends personalized email alerts. Includes an AI-powered chat interface with natural language search (GROQ (LLM) + ChromaDB vector search).
• My role: Sole developer — built the full stack from data ingestion to email delivery and AI search.
• Impact: 120+ active subscribers, automated CI/CD with zero-downtime deployments.

An interactive map application that displays NYC restaurant health inspection data from NYC Open Data, allowing users to explore restaurants by health grades, view violation details, and search by location or cuisine.

• What it does: Interactive Leaflet map with color-coded health grades (A/B/C), detailed popups with violations, search and filtering, auto-geocoding of addresses
• My role: Sole developer — built data processing pipeline, CSV-to-JSON converter with geocoding, map integration, and responsive UI
• Impact: Automated CI/CD with GitHub Actions, processes NYC Open Data inspections, preserves geocoded coordinates across updates, incremental data refresh system

A content discovery platform for automotive and motorsport enthusiasts, aggregating curated videos and articles from around the web.

• What it does: Full-text search, tag filtering, video embedding, newsletter with email verification
• My role: Sole developer — frontend, backend, email system, and deployment
• Impact: Automated CI/CD via Vercel, zero-maintenance deployments

A real-time NYC subway tracking app that displays live train arrival times using MTA's GTFS-Realtime feeds.

• What it does: Station selection, line filtering, countdown timers, interactive map, live service alerts
• My role: Sole developer — real-time data integration, UI/UX, dark mode, mobile-first design
• Impact: Fully responsive PWA, automated CI/CD via Vercel