JavaScript XMPP Chat Client (Strophe.js) //minimal UI

I need to develop a JavaScript based XMPP Chat client application using [login to view URL] library for Mobiles (Hybrid app using Cordova). Technology Stack: - HTML5, CSS, JS - Cordova based mobile build (Android & iOS) - [login to view URL] XMPP library - Minimal UI - Browser localStorage IMP: The application should be able to handle the following very precisely. 1. Frequent internet disruption 2. Ability to work on poor b/w (poor 2G networks) 3. Never lose any incoming & outgoing message 4. Handle web pages navigation 5. Native JavaScript. No ionic or any other JS frameworks. 6. Minimal use of JS libraries to keep the app lean 7. Its great if JQuery can be avoided too. Features which I DO NOT require are: Notifications, Audio alerts, sending or receiving images / file, fancy UI etc. Main focus is on building a robust base app which will work seamlessly on poor connection, frequent disconnection & handle page navigation. NOTE: 1. Prefer someone who can start asap and complete in 2-3 days or sooner. 2. Experience with developing hybrid app is mandatory 3. Experience with Strophe will be super 4. Please ask any questions you may have. Thanks!