Hello, I read your whole proposal, that you need Android app customization and develop costume wordpress Rest API . I am expert in this area so, we can do this very well.
So I think I can do this in high quality.
**Our Expertise**
Front End: HTML5, CSS3, Bootsrap, NodeJs, AngularJs, Javascript, jQuery.
Scripting: PHP.
Framework: CodeIgniter,Laravel,CakePHP.
Style: MVC Architecture.
Database: MySQLi Programming.
External services: API Integration.
CMS: Wordpress,Magento,Joomla,Drupal,cakephp, Bigcommerce.
Ecommerce : Prestashop,Zencart,Opencart,Woocommerce,Virtuemart,Shopify.
Mobile Apps: Android, IOS (Native and Hybrid),IPAD.
I want to further discuss with you so, please ping me in the chat section.
I look forward to working together in partnership on your project and into the future.
Best Regards.