Delivered transformative performance and feature enhancements across the platform. I achieved a 40% reduction in customer support response time and boosted key page load speeds by over 300%. By translating Linq queries to raw SQL, I slashed database response times from 20 seconds to under 2. I also engineered a full-stack battery exchange module for EV maintenance teams using Angular, Nest.js, and Postgres, integrated Stripe for kiosk credit card payments, and developed complex scheduling conflict resolution algorithms in TypeScript to streamline operations.