1) Web & Backend API development
Various php/js frameworks and CMS:
- Symfony/Laravel/Yii/CodeIgniter/Phalcon/Zend and some others
- CMS: Magento, Wordpress(certified), Drupal, Opencart, Shopware, Typo3, Prestashop, Shopify, Grav
- React/Angular//Ember/ExtJs/Node/Meteor
2) Mobile development
- Native iOS/Android development
- Hybrid Frameworks like Ionic, React/React Native, PhoneGap/Cordova, Meteor and some others