Login Dashboard: HTML5 Mobile App & Wordpress

I am looking for a developer who can integrate a User Login Dashboard for my HTML5 Hybrid Web Application hosted on Goodbarber.com. All development must provide a safe and reliable connection between my WordPress Install and the mobile app. Facebook single sign on function should also be included. The login "token" or credentials must be recognized by the application (to be discussed.) I can provide the freelancer with a variety of templates to choose from for the project. These templates only need simple API integration to work out-of-the-box. Very easy for an experienced developer. The templates range from basic HTML5 & Jquery forms, Ionic Templates , and Angular 4 Dashboards. All of the templates are accompanied by detailed documentation. As a show of gratitude for the work, I will give access to all 5 of these complete templates to the freelancer free of charge upon completion of the project, worth well over $500.