Selenium test automation

Looking for an expert in test automation to help us test our magento webshop. You need experience using and setting up selenium and selenium grid as well as using a proxy such as BrowserMob, hidemyass, etc. Proxy to test the page. Our website needs to be tested in many different Desktop and Mobile Browsers (IE 8-11, chrome, safari and firefox,....) We need your guidance in setting up the test suite such as where to host it (amazon cloud?), setting up selenium grid on windows/linux and creating the webdriverjs bindings in javascript. Your tests will need to inspect network requests made by the javascript to ensure the tests are successful on all platforms.