We have a site built primarily with PHP on MYSQL. We have over 700K products available in our DB, which is causing our site to function very slowly and sometimes crash. We need an expert in PHP & MYSQL to review our code and give us suggestions for improvement. This project could also turn into a longer term position to make corrections to code and site structure. Candidate should have following skills PHP: expert MYSQL: expert 4+ years working on high traffic sites 4+ years working with large databases