need php, mysql for few updates on the site

we need to make few website updates, involving php, mysql, javascript and ajax fixes and update. the update would involve layout design changes and coding to fix site bugs and add new functionalities. we would send you complete files with design layout and details of work to be done. however you need to be very skilled in php, mysql, javascript and ajax. since the website is live website, we would prefer not to provide you with site access but we can send you all the files you require, so you can create your own workspace on your end, and then send us the changed files back. i would send you all the details once you have placed your bid. bid only if you are available to start work right away, and you are very good in above required languages.