Android Application (Post Maker) Features upgrade

The project is already have an existing source code, if you feel your self that you are good in maintaining an existing code and improve it by adding new feature please make a bid. Freelance should have good knowledge in Adjust SDK features, Firebase Analytic and notifications Admob Sdk Deliver on Time work with Gits (GitHub) what i need to add in this project is: 1- Handle receiving deeplink with adjust sdk, parsing the deeplink and check wither the user should see the billing screen or not. 3- integrate SDK Adjust / firebase (if not exist) 2- Save the deeplink 4- on launch screen if user has received deeplink the isPurchases key was false the app will always show the billing screen(once he purchase he will be a pro), otherwise if the key is true he will act in app as pro user. 5- if user didn't receive any deeplink, the user will act along with it's purchase status. ( will show ads if not a pro user) 3- on Purchase send event (failure - success) with adjust with specific params i provide you with. 4- change colors / icons if needed (i'll be providing the images if there is a need) 6- always (almost Daily) push the code to test.