Web-based Colour Prediction Game Development

I'm looking to develop a simple, engaging colour prediction game for the web. The ideal candidate will have extensive experience in game development, particularly for web platforms.

Key Requirements:
- Proficient in web-based game development
- Experience with creating interactive and engaging games
- Knowledge of game design principles
- Ability to deliver a bug-free, smooth-running game

Skills in user interface design, particularly for web games, would be beneficial, as would a portfolio demonstrating previous successful projects. The ultimate goal is to create a fun, addictive game that users will want to play again and again.