Hi , I am a mobile and web app developer based in karachi Pakistan , i have created multiple android apps that are live on play store , i have also develop the app of a start up (Tech Tree) base in karachi . I am comfortable working with any type of android application and the architecture that i will use to build your app will be (MVVM) architecture . The link to my portfolio is http://sarimkhan0321.atwebpages.com/ and you can also check out my github page for code verification https://github.com/sarimk80