Gambling Site Development

I'm seeking an experienced developer to create a gambling site similar to BloxyCross, BloxLuck, and BloxyBet. It’s a Roblox based gambling site and the game might change depending if I can understand how to set use the bot trading.

Maybe try out the sites so that you may gain an understanding.

Essential Features:
- User registration/login (same as BloxyBet, BloxyCross)
- Betting system (coin flips)
- Leaderboard
- Tax on gambled items for coin flips with over 10 total items (both people put 5 items = 10 so there is a tax). More tax depending on more items. (This might be changed)
- Bot trade automation

Ideal Skills & Experience:
- Expertise in web development
- Familiarity with gambling site mechanics
- Strong knowledge of user authentication systems
- Experience with betting systems, particularly coin flips
- Ability to implement tax mechanisms and bot automation

Please provide examples of similar work done.