Built and improved multiple web products and websites, including an e-commerce platform with modal cart and payment gateway integration to increase client sales conversion. Developed performance-focused front-end interfaces using React and Vite, enabling users to create customizable pizza orders with complex JavaScript logic to calculate cart totals instantly based on selected ingredients, size, and dough type. Wrote end-to-end tests using Cypress to ensure reliable form validations and seamless order flows. Architected a dynamic form management system using React Hooks to handle real-time price updates based on state changes.