HTML, CSS, Bootstrap, SASS, SCSS, XML, XPATH, Composer, PHP, OOP (SOLID), Smarty, MySQL, Postgresql, MongoDB, Javascript, jQuery, AngularJS, Greensock, JSON, AJAX, XAJAX, NodeJS, phantomJS, casperJS.
CMS: Joomla, wordpress, opencart
API: Google, Yandex, VK, Facebook, Twitter, Webex, Walmart Semantics3, Indix, creating own API
Frameworks: CodeIgniter, Yii, Laravel, Kohana
Versionning: SVN, Git, Mercurial.
Other services: GCM (Google Cloud Messaging), APN (Apple Push Notification), WPNS (Windows phone Push Notification) – Server side