Mobile Card Strategy Game prototype

I am looking for a game developer to work with me on a mobile game idea i have. I am current looking at getting a basic android prototype built out. I have no assets that need to be used in this build this is very basic bare bones game to bring some ideas to life. I am not sure what platform/engine this should be built on, so i am looking for suggestions, the idea is to be able to release to both iphone and android in the future, so please bear this in mind when you suggest what platform/engine. The idea for the project is to build out 4-5 screens, Home, Card selections screen, game/match screen, win/lose screen. I will provide more information to the winning freelancer. Can you please bid and provide a link to your portfolio, along with your platform/engine suggestion, and start your your message with "I understand" so that i know that your have read this description fully. Thanks