Debugging & Enhancements website

I'm looking for a highly experienced Freelancer for a project that involves work on a website. You will need excellent skills in PHP, Mysql, Javascript, CSS, cron and Linux. Next to this you need to be able to quickly familiarize code and have good debugging skills. This project consist of 2 parts: A) Debugging several errors/features that don't work properly, for example: - Information plotting on Google Maps - Fix issue with information filters - Fixing errors with fonts - increasing/optimizing speed of certain pages - fixing issue with a timer - fixing several issues with flow of pages - Fixing several issues with CMS - etc etc B) Enhancements to existing website, for example: - Adding dynamic sitemap - changes to several menu forms - creating automatic HTML outputs from mysql information - Adding search functionality - etc etc In the first phase there will be around 30+ debugs/enhancements. As it will be very difficult for you to judge the amount of work this will be I propose that we agree on the amount/price of work on per each Debug/Enhancement, starting with the easy ones and if everything works I'll give you more work each time. I require someone with: - Good English skills - High integrity & honesty - Ability to work fast & accurate - Frequent & clear communication - good availability in the next 2-3weeks IMPORTANT: I will only consider Freelancers that have both a high rating and high completion rate (+70%). I will share the website and other info after a bid