Enhanced Deck.gl map performance for land development management system by 50% using cached Mapbox GL JS markers to reduce unnecessary map re-renders.

Delivered map overlay filter with manual draw tool using CARTO, Nebula.gl, Turf.js to help land development managers account for dozens of potential construction obstacles, reduce materials cost by 25% and adhere to zoning laws.

Architected JavaScript and React mobile-first website that provides user advertisement data for targeting ads.

Revamped UI/UX of internal engineering portal using Angular 2+ and CSS3 to increase user accessibility.

Wrote 10+ e2e tests for client-side components and fixed 30+ failing tests using Protractor resulting in 10% additional coverage of codebase.

Optimized page load speed from 5000ms to 25ms (99.5% improvement) by implementing more efficient data structures to store, sort, and process Bitcoin data queries using JavaScript, Node.js, Express, and MySQL.

Built interactive phone carrier coverage map using Mapbox GL JS and React for a major telecom company.

Ensured code quality and maintainability with 20+ unit tests using Jest/Enzyme to reduce technical debt.

Designed and wrote complex spatial-ETLs with Python and ArcGIS ModelBuilder to load field data of tobacco advertisements near K-12 schools, which reduced the manual data entry by 200%.