Cryto Currency Exchange

Virtual Coin Exchange This post is for software engineer that already completed successfully an exchange for bitcoin and other cryptocurrencies. requirement: PHP, apache, mysql, YII framework (1) General 1. I need a Worldcoin, Feathercoin, Dogecoin, PPCoin, Zetacoin exchange. 2. Anyone who has previously developed a virtual coin Exchange and is willing to sell the code to me will be considered of priority. 3. Any interested bidder should provide DEMO. 4. I will have the COPYRIGHT of the code. (2) Technical Specification of the Exchange 1. A FULL virtual coin exchange (which means the code can be deployed immediately for business). 2. 4 Type of User: trader/customer (buyer and seller), non-verify customer, administrator, support personal 3. Deposit and withdrawal for customer USD and ringgit, and 5 type of virtue coin. - Small withdrawal will be done automatically (with two factor authentication). - Approval needed by admin for large withdrawal. - Admin withdrawal UI has a wallet list to choose. Admin may send the virtual currency with few several wallet to single customer. 4. Customer registration - Name, IC, billing address, Country, phone number, email - All virtue currency wallet will be created for every customer who register - captcha verification - Integrate google two factor authentication into system. A verify customer will need to have his private key activated. And all withdrawal (fiat or coin) will required two factor authentication. eg: [login to view URL] - after registration, customer will assign to non-verify customer class. Any customer in this category can not do fiat/cash deposit and withdraw. Only after email, IC, billing address verification and google two factor authentication private key activated, admin will allow fiat/cash withdrawal. - password must be strong password. At least 8 characters, 1 Upper character, 1 lower character and 1 number - after user register, user will get email inform for their login ID and password. - after user register, user must pass email verification, then IC, billing address verification, else user could not fiat/cash deposit and withdraw 5. Security Wise: - All buttons on the front end will need protect against fast mouse click. For instance, if a customer want to buy or sell, or request withdrawal, the front end button will need to disable after one mouse click and wait for the back end server to respond before enabling the button again. - The database will need to be "transactional" database to protect data integrity. This is to ensure all buy and sell execution will not overlap, that is all buy order executed will have one or multiple sell order matching it. - prevent sql injection - prevent data redundancy - Multiple browsers such as chrome, Firefox and IE and safari. - Script to backup mysql database every 30 min, every hour, every day, every week, every month 6. Trading & Commission - every trading sell/buy will subtract 1 % commission to system wallet. Total commision per trading will be 2%. (Commission percentage can be edit by admin) - order book to display sell/buy virtual coin list - pause markets trading 7. Script that having low trading latency and support high volume. 8. The language of the website should be easily modified. 9. One must show they meet the criteria mentioned above. (3) Payment 1. The payment will be divided into two parts 2. First part will be settled after receiving the code and confirming the code meets the criteria mentioned in section(2) 3. The second part will be paid after the site is up and running without error. (4) Additional 1. The successful bidder should provide FULL technical support. 2. All code shall be fully documented. 2. Plz put "Exchange" in the end of your bid to prove you have read through my text