Hi, I'm a Web Developer and Sys Admin with more than 10 years of experience.
I worked extensively with hosting servers, and since we have lots of different sites, we have to deal with all kind of scenarios related with mysql databases, from creation, to optimization, size reduction and more. Even a wordpress database could be considerable big when you have lots of plugins and revisions.
Since I don't know the issues you are dealing with, not sure what other pertinent information to give you.
In any case, let me know the details, so I can give you an accurate feedback.
Since I'm new in this site, and looking to build a good reputation, I'm willing to give you a very good price while giving the job a top priority.
Cheers.