It's easy to underestimate the amount of work that goes into a bitcoin casino.
Even before you've started working on the game itself, you're mired in hard math, security, and engineering challenges like interacting with the bitcoin network. And no matter how well you do on the technical parts, attracting people to it is a gauntlet of its own. And if you're planning on being the house, you've got to inject enough capital into the bankroll to attract wagers.
Implementing both the server and the front-end website of a dice site involves two wildly different and challenging jobs. Unless you have the budget for some serious talent, you're not going to have an easy time finding someone that can do both.
Consider building your dice site on top of
https://www.moneypot.com/ if you go the route of hiring a developer. It takes more than half of the work away. Since Moneypot handles the bitcoin interaction, bets, users, and bankroll for you, you and your developer can focus on your casino. It'll be cheaper, you'll launch much faster, and Moneypot eats all the risk.
Anyways, if you ever need help vetting a script or developer that you stumble across, feel free to PM me and I'll try to help.