Cordova + Ionic 3 plugin expert required for Background Geolocation SDK development

Cordova + Ionic 3 plugin expert required for Background Geolocation SDK development We need an expert to develop a Background Geolocation plugin for Cordova and Ionic 3. The developer would have to develop a native script (Java + Swift) and after, implement that code into a plugin for Cordova and Ionic in order to build an SDK. It should be battery-conscious, to avoid battery consuming too fast. Plugin will be proprietary and it could only be used with a configurable license API key in the [login to view URL] file (something similar to the Google Maps license API key), which could be obtained through our backend server. It should be a unique license per app. So, it should be developed to avoid piracy. Let me know if it is possible when you bid and how would you made it. IMPORTANT: Do not reuse the code of other projects or, if so, keep the code as clean as possible. This will be valued for future plugins. It should be compatible with Android from API 23 (if possible) to API 28. It should be compatible with iOS from version 9 to 12. This plugin will be used by our users, so maybe some future support would be required through Github to solve problems, incompatibilities, etc. So, this is a long-term project. Plugin should be installed from command line as every plugin. Any advice from developer about a better performance or about battery use optimization will be appreciated. If I am happy with this project, more plugins will be required in the future. This plugin in React Native could be required in a future as well. When you bid, let me know some GPS examples and cordova plugin that you made. Let me know as well, how much would customer support through Github cost. PLUGIN: This plugin should obtain the geolocation of a smartphone when the app is in background and when mobile changes its position. Technical information about desired methods/classes/variables to implement will be found in attached file.