Front-end:
○ HTML: Bootstrap 3.x/4.x, UIKit, TailwindCSS
○ CSS: SASS, LESS
○ JS: jQuery, ReactJS (include native), VueJS, Gulp, Webpack
Back-end:
○ PHP:
○ Python:
○ Ruby:
Design: Sketch, Figma (work on own projects)
Other: WeRTC, AWS, Git, Linux (Ubuntu, LAMP/LEMP stack for PHP/Ruby/Python).