AWS, Storage, Sass, Compatibility, Webpack, HTML, CSS, Object Oriented Javascript, React, Caching, SPA Framework patterns

Javascript, Web Accessibility, HTML, Build Tools, CSS, Performance Tuning, Javascript Frameworks, Jest, Storybook, UI prototyping, API interaction, advanced CSS properties, Chrome DevTools, frontend security, testable frontend code, browser APIs, cross-browser compatibility, rendering strategies, Lighthouse