Game design help

I am working on a new multiplayer game in the same genre as dominations and clash of clans. Looking for an experienced game developer/designer who will help me design and test the game. A basic version of the game is deployed on the appstore and has a couple hundred users... (Budget: $30 - $250 USD, Jobs: Documentation, Game Asset Creation, Game Design, Game Testing, Game Trailer, Game UI, Git, Internet Marketing)