Built a comprehensive real-time trading alert system using Polygon WebSocket API to monitor penny stocks ($2-$20, market cap <$1B, excluding OTC). The system features a dual-layer architecture: backend WebSocket connection to Polygon API handles authentication, subscription management, and data filtering, while frontend receives processed data via Server-Sent Events (SSE) for optimal performance. Key features include: automatic surge detection with customizable thresholds, TPS (Trades Per Second) analysis for momentum tracking, uptick pattern recognition, browser/audio notifications, health monitoring with auto-reconnection, and memory-optimized data processing with batch updates (10ms intervals). The system processes thousands of stock updates per second with minimal latency, providing instant alerts for potential breakout opportunities.
Developed an incremental clicker game using Next.js and PIXI.js for high-performance 2D graphics rendering. The game features a click-based progression system where players earn currency by clicking a rocket sprite and invest in upgrades for enhanced click power and passive income generation. Implemented auto-save functionality using localStorage, offline revenue calculation (up to 8 hours), and particle effects system for visual feedback. The game engine handles device pixel ratio for crisp rendering across devices, smooth sprite animations, and real-time game state management. Designed with mobile-first approach and packaged with Capacitor for native app deployment on iOS and Android platforms.