Create a Mobile Website

We've built a simple web-based mobile (responsive) game and want to improve it. The game connects to a database, involves a ticking clock and rewards. It is single player, but we want to offer a two-player option. We need an excellent game developer who can immediately understand what we're trying to do. We're only interested in developers with a high level of gaming experience, so please don't apply if you haven't already developed some games. This phase of the project is simply to understanding the existing code and the database API, and make some minor changes that show a clear understanding of the game. If that goes well, we'll create a Phase 2 project to upgrade the game. Thank you!