Hello!
I have a very good background as a Database Administrator (DBA). I'm a computer engineer with more than 12 years of experience in programming (PHP, shell script, C, C++ and others), databases (mySQL, PostgreSQL and others) and software analysis (UML, ER, UI and other artifacts). I have a very good understanding on query optimization, which is what you need, according to the job description.
While working on this project, I'll always be open to answer any questions you may have. For example, if you're in doubt why I used determined technique to optimize a query, you ask me and I'll explain the approach. No additional costs for this, of course.
Talking about costs, I'm open to discuss the project's costs, as my bid might be above the average, because I'm not yet fully aware of all your needs.
Keep in touch. I'm ready to answer your questions via chat. You don't have to award me with the project yet. Let's talk and then you decide. Free of charge, of course. If you'd like, I can work on a problematic query for you to see the result prior to awarding me.
I can start working right now.
Best wishes!
Alex.