AngularJS, Angular 2 - 5, React, Vue.js, D3.js, jQuery, Backbone, Passport.js
Node.js (Express), PHP (Laravel, Symfony), Python
Mysql, Postgres, DynamoDB, MongoDB
CentOS, Ubuntu, Amazon Linux
Twitter, Facebook, Google Analytics, Adwords, YouTube, Vimeo, LinkedIn, XING, Google Calendar and Google Map, as well as Amazon API Gateway.
Wordpress, Joomla, Drupal