Hello,
I have checked all provided details and have full understanding about your job description and wanted to confirm you that I have extensive expertise in Shopify Store Designing and Development, Extension Development, 3rd Party Gateway/App/Plugin/Script Integration, PSD to Shopify Conversion, Theme Development and HTML5/CSS3, HTML/CSS, PSD-xHTML, JavaScript, JQuery, AJAX & UML etc.. And will provide you complete help according to requirements.
Regards,
Kaushal