I've been a web developer for almost 6+ years, and I've specialized myself in creating web applications. I have worked with many PHP frameworks, like Symfony, Laravel, CakePHP, Zend and many more. I have worked with many PHP off the shelf applications, like Shopify, Joomla, Wordpress, Magento, WooCommerce, Zen Cart, Moodle, and many more. In fact, in those 6 years, if it's a common PHP application, I'd probably had a project with it. I have created WordPress sites from scratch, created new themes, modify existing ones, created plugins and modified plugins, both commercial and custom made. Wordpress migrations, updates, hardening, maintenance, speed optimization, clean up from malicious code, backups, SSL/HTTPS, you name it. 

Thanks