Build me a Binary Options web platform

We are looking to have a Binary Options web platform created for our website. Taking a look at the platforms that [login to view URL], [login to view URL], [login to view URL], [login to view URL] offer we can get a sense of what it should be like. To learn the basics of what Binary Options are, and therefore what the platform should include we can read this website: [login to view URL] Essentially the platform should accept the deposits of each player into the system and onto their account if they do so deposit any money. This money will be used for playing. If they choose a "Buy EUR/USD" for "5 minutes expiry", and the price is higher after five minutes, then they should be awarded the money they have won. If the price is lower after five minutes, the money should be wiped from their account. They need to have the option of choosing how much money each bet should be, for example: a $10 bet that they won should give them their initial $10 bet back and plus another $8, as we will be working with an 80% payout on winning bets. On a losing bet, the $10 initial bet will be wiped from their account (so if they started with $250 deposit, they will now be at $240 in account). I don't know which skills are needed, however it should just operate from the website.