Magento, Open Cart, OSCommerce, Shopify, Prestashop, Big Commerce, Volusion, Drupal Uber-cart, Wordpress WooCommerce, Paypal API, Zen Cart, Zend Framework,eBay & Amazon integration, Quick-books integration, Multi Store Setup, Template customization, Magento Extension Development (Modules and Widgets), Wordpress Plugin Development, REST & SOAP Web Service API Development