Experienced Web Developer | CI Framework, PHP, MySql Programmer

We are looking for talented programmers to complete specific tasks on our existing website. We have a price comparison PHP website and an alternative (offline) version made up in framework (CodeIgniter). Responsibilities: 1. We need you to verify, adjust, modify (if needed) our framework version to display it online as main version of our website. Main reason should optimization, performance and stability. 2. We need to improve our data feed system to load our customers products online on our website. At the moment products are loaded from xml file feeds that sometimes block the server for a while and don't synchronize with the available products in our customers database. 3. We also need to allow customer add their products manually. Skills : Analytic approach of the problems, experience with PHP and OOP (preferably experience in one of the CodeIgniter php framework), excellent knowledge of MySql,basic knowledge of xhtml/css,experience using at least one of the following javascript frameworks: jQuery, mootools, prototype or scriptaculous. Excellent debugging and problem-solving skills. Some basic knowledge of linux. Budget is discussed based on proved skills and previous work. Payment only by milestone.