Gathering software requirements using interviews, documents analysis, use cases and workflow analysis. HTML, CSS, PHP 4/5/7, JavaScript, MySQL, Eclipse, Netbeans, PHP Storm,Mantis, JIRA, Redmine, Workfront, SVN, Git, ADO DB, Smarty, jQuery, Doctrine, Bootstrap, Zend 1/2, Yii 1/2, Symfony 2, Joomla, Wordpress, Drupal, Presta Shop, Shopify