Schreiben einer Android-Anwendung

To make it short and easy. We are looking for a programmer who is able to program our game for Android and/or for the App. The app is about as complex as the game Geometry Dash and it's a 2D game. Our game has first 12 level 24 characters and otherwise just Basics. The degree of difficulty lies with on the levels. 1 Level lasts approximately 1 minute. 1 of the characters moves in a line along and changes sides. The lines are paths that goes also upwards and downwards. Please no beginners! It's not paid by hourly wage but with a fixed amount. The programming would start from next week. The design is completely finished.