Hi,
My name is Muhammad Alyas, I have read the details about what you're looking for.
I have 7+ years experience in HTML, CSS (now HTML5,CSS3), PHP, MySQL, JavaScript, jQuery, XML, JSON, APIs integrations, Website optimization etc. in short almost everything required to build a website.
Regarding CMS, I have good experience in Wordpress, can develop custom plugins, themes etc. and eCommerce platform, I can work with Magento.
Regarding mobile apps, I can develop Android apps.
I am always ready to adopt new CMS/tools as needed.
I am looking forward to an opportunity to join your agile team.
and yes, you can read reviews about my history here on my profile http://www.freelancer.com/u/alyaspk.html
Please let me know if you need to know more about me or got any question.
Warm Regards,
Muhammad Alyas