I am Magento Certified Developer - http://www.magentocommerce.com/certification/directory/dev/582551/
I can perform a wide range of tasks: building projects from scratch, creating new extensions, maintaining exitsting projects, building new themes, optimizing website performance.
I also have strong skills in JS, XHTML, CSS and MySQL. In our work we can use Git, SVN, Nginx, Apache, *nix systems.
My experience with Magento is over 4 years.
My experience with PHP is 15 years.