1. HTML5, CSS 3, JavaScript (Angular JS, Backbone JS, node.js), JQuery, Ajax
2. Twitter BootStrap, Media JQuery
3. PHP, ASP.net, C#, YII, Cakephp, Codeigniter , Java (J2SE + J2EE with JSP, Servlet, JNDI, JDBC)
4. Wordpress, Magento, OpenCart, PrestaShop, Drupal
5. API Integration, Plugins integration & Customization