I am Fully Magento Expert developer/designer help you with task
In Magento integration,magento speed optimise,Customization, 3rd party,ERP,JSON Extension integration,Module customize,Magento Maintenance as well.
As Magento developers have knowledge:
PHP5, CSS3, HTML5, Jquery, JavaScript, Ajax, Responsive Theme,
Custom Module Development, Custom Shipping Method, Theme Design, Magento API build
Shopping Cart Development, Magento Upgrade, Magento Extension Development.