Leonardo Maldonado

Built Spaceship's domain search platform from scratch as the sole front-end developer. Established the entire frontend architecture with React, TypeScript, and Zustand. Built Beast Mode bulk search for simultaneous multi-domain queries with advanced filtering. Integrated TanStack Query with query key factories and intelligent caching, reducing API calls by 60%. Optimized performance through code splitting and virtualized rendering, cutting bundle size by 40%. Refactored WebSocket processing with batched state updates, reducing re-renders by 80%. Built a multi-currency pricing engine supporting 30+ currencies across 500+ TLDs.

Wrote extensively about JavaScript, TypeScript, React, GraphQL, HTML/CSS, Node.js, and modern web development for the Telerik blog.

Created content empowering developers to learn about JavaScript, TypeScript, GraphQL, HTML/CSS, React, Node.js, and programming fundamentals.

Built Taco Maps, a React Native food delivery app for Los Angeles taco restaurants. Architected the mobile application from the ground up with Redux, TypeScript, and Firebase. Implemented real-time order tracking, location services, and payment integration. Set up end-to-end testing with Detox across iOS and Android.

Delivered React and React Native applications across Brazilian banking projects. Built scalable frontend solutions with Redux, TypeScript, and Firebase, with comprehensive Detox testing for financial-grade reliability.