Programming languages
HTML/CSS
CSS Preprocessor: Scss/Sass
CSS framework: Bootstrap
JavaScript
jQuery
Vue, Vuex
Electron
API design
RESTful API
Web design
RWD
SPA
Web development tools
Gulp
Webpack
Backend
PHP
MySQL
Web Deploy
Version Control
git: GitHub, Gitea
Other related
Wordpress
Web Security
SQL Injection
XSS
IELTS Band 6