Need talented mobile dev to bring new features to existing project

Hello,

Please read this carefully, as over the years I've had a number of poor experiences and I'd like eliminate that this time around.

I am seeking an experienced, and competent, developer to add new features to an existing game currently on the market. The game in question is "21 Potions" (Link here).

We're looking to add features like:
* Boosts
* 2nd coin economy
* New game modes
* Android port

To be clear: I am looking for a highly skilled individual who knows not only the ins and outs of Unity but can code this game in their sleep. For that I am willing to pay a high ask. For God's sake do not waste my time if you are under or even barely qualified.