Respected Sir/Madam
I am node.js Web Developer, I will help you developing your application in highly recommended open source technologies like below
Node.js (Back End)
Passport (Authentication Library)
Mongoose (MongoDB Database)
Express (Web Application Framework)
Webpack,Gulp,Grunt (Task Automation Tools)
Mocha,Chai,SuperAgent,Should (Test Driven Development)
The Application will be developed in a scalable manner,so future expansion will be easily done.
We will develop the application with the help of Back End API, so in future, you can scale it easily for Android as well as iOS Applications
THANKING YOU
REGARDS