I'm actually working as a system developer in an international company. I have more than three years of experience with on-line systems, on-line applications, back-ends and dynamic webs development. Experience developing with PHP and MySQL on server-side, and XHTML, Javascript, CSS2, DOM, Dynamic HTML and XML for cross-browser web applications interfaces or dynamic websites. Also AJAX implementation. I have experience in Object Oriented Programming, very clean coding, and experience in relational database design and implementation, tending to obtain clean structures, avoiding data duplication and optimizing data queries for performance.