I'm connecting a service called Qiwi ([login to view URL]) to my website (build on magento) to process payments. Qiwi is a terminal based payment method: there are terminals ([login to view URL]) where customers insert money to top up their account which is used to pay for services provided by my company ([login to view URL]). I need a developer who can develop an interface which will be used by Qiwi company to verify payment. Full specs are attached. Thank you.