✪✪✪✪✪ Here is my portfolio.
https://www.freelancer.com/u/wangzy840101
Hello. I read your requirement carefully. I have interested in this project really.
I have developed many online/offline games and apps for Android and IOS, WebGL in Unity3D (C#) for 5 years.
My backend skills are Nodejs, MongoDB, PHP, MySQL and I have made the game servers with these skills in Amazon.
I also have experiences to integrate ADS and SNS, InAppPurchasing, Leaderboard.
Please contact me anytime when you have interested in me.