Android Real Money Snake MMO App

I'm looking for an experienced mobile app developer to create an Android MMO game app inspired by Snake (like slither.io). This will be a real money game, incorporating cash rewards for achievements and entry fees for tournaments.

Key Features:
- Multiplayer Snake Game Mechanics (see survival mode here - https://play.google.com/store/apps/details?id=com.snake.io.slither.worms)
- Real Money Integration
- Cash rewards for in-game achievements
- Entry fees for games
- User-friendly UI/UX
- Secure payment processing

Ideal Skills & Experience:
- Mobile game development (especially on Android)
- Experience with real money gaming apps
- Strong UI/UX design skills
- Knowledge of secure payment systems
- Ability to implement multiplayer game mechanics

Please include relevant work samples in your bids.