App Developer

I require an experienced app developer who has extensive experience with Ionic,Cordova and firebase.
I am setting up a Pre order coffee and Food app that has already been set up but I need it set up on my host as well as have it tested and running on both Ios and android. I then hope to resell the app and get subscribers to use the app. I will need an agent full time to set up each time a new subscriber comes on board. You will need to know how to add plugins and or build plugins to suit the app.
The base of the app comes from https://codecanyon.net/item/restaurant-ionic-full-application-with-firebase-backend/14680675
I will also have some wordpress websites that need building and managing
I will also need a few apps built around some opencart websites that I currently have running