I have 6 years of professional experience in computer programming and system administration with linux in some companies in Porto (Portugal) and Shanghai (China) besides several personal projects in free software, AI, AJAX, rss, Apache, MySQL and others. My work in the first years was developing several professional websites in HTML and Javascript webdev and some PHP programming. In the late years I made the entire current service for registration of webdomains co.pt as well as sysadm of webhostings. Some stand-alone and network software for some portuguese companies. I worked in the development of a shop cart system based on pinnacle cart and a ticket system based on kayako system both on web 2.0 style. Most of my projects are programmed in PHP but in particular cases I use also Perl, XML or Javascript. I work in full time and also as freelancer. As freelancer in China I developed several projects so far with portuguese, chinese, german, spanish and brazilian companies. I am a member of the Portuguese Association for Free Software (Associação Nacional para o Software Livre), Portuguese Association for Artificial Inteligence (Associação Portuguesa para a Inteligência Artificial) and Shanghai Linux User Group. I am fluent in portuguese (native language) and english, conversational level in spanish and survival level in chinese. Feel free to contact me for freelance work if you think I could help you.