Hey! I'm Leo.

Built custom React hooks with local-storage TTLs to suppress repeat UI prompts, reducing interface clutter by 22%. Implemented Python feature toggles with observability tooling to enable dark launches, cutting QA hours by 35%, and used TypeScript abstractions to implement unified loading states, improving First Input Delay by 40%.

Built a Shopify driver with Angular using a backend translation layer for integration with internal systems. Used RxJS to debounce and cache GraphQL queries, reducing network calls by 55%, and applied Angular incremental hydration to cut Cumulative Layout Shift by 30%.

Wrote Python and shell scripts to improve the internal ticketing system, reducing client response time by ~40%. Optimized cash value projections with a custom function, saving ~65 engineer hours annually.

Built and maintained data migration scripts with Prisma ORM and PostgreSQL to ensure accurate transfers. Created TypeScript interfaces and service layers for consistent backend-database communication.