Web Development, specifically front end web development, is fast becoming as complex and sophisticated as traditional back end development. Most projects don't just upload some JS and CSS files via FTP. There's now a front end build process that can include expansion of SASS and LESS, minification of CSS/JS, running JSHint or JSLint, and much more. These build tasks and processes are coordinated with tools like Gulp and Grunt. Additionally, client-side libraries are managed as packages using management systems like npm and bower.