Write some Software : Looking for a perfect API integrator.

I am running a website [login to view URL] with paypal, payza as payment option. A. I want to add more payment option like: 1. Neteller([login to view URL]) 2. [login to view URL]([login to view URL]) 3. Perfectmoney ([login to view URL]) 4. Payeer ([login to view URL]) 5. Okpay ([login to view URL]) 6. Bitcoin 7. Skrill ([login to view URL]) 8. Payoneer ([login to view URL]) 9. Payumoney ([login to view URL]) 10. Neteller 11. Googlecheckout B. I also want to integrate offer wall using API of 1. [login to view URL] 2. [login to view URL] 3. [login to view URL] 4. [login to view URL] 5. [login to view URL] 6. [login to view URL] 7. [login to view URL] 8. TrialPay 9. RadiumOne 10. Matomy 11. TokenAds C. General a. Anyone who has experience of API integration. b. Any interested bidder should provide DEMO. c. I will have the COPYRIGHT of the code. D. Security Wise: prevent flash cookies prevent sql injection, prevent data redundancy, etc E. Payment a. The payment will be divided into two parts b. First part will be settled after receiving the code and confirming the code meets the criteria mentioned in section B and C. c. The second part will be paid after the site is up and running without error. F. Additional a. The successful bidder should provide FULL technical support. b. All code shall be fully documented.