Hi,
I have experience in upgrading magento sites . I have upgraded magento from 1.4 to 1.9
I have 5+ years of experience in webapplications.
I worked on core php and frameworks like magento, drupal,lavarel,opencart ,wordpress and smarty and many more
I am a freelancer and not a company, so you get very good attention for your work with quality and in time.
skype : live:netake_nilesh