DBA expert required.

My DBA Requirements are someone who knows MySQL well with proven experience in both clustered and non-clustered configurations. They will be looking at the performance, security and availability of the WESA database. They need decent experience with recent versions of MySQL and have an understanding of the undelying storage engines such as InnoDB. They must be familiar with the standards and best practices for writing SQL. and they must be proficient in writing and optimizing SQL statements.

the database in its current form we will give you access it when you pulled down the WESA code and built it
I want to look at how we ensure that database can handle millions of concurrent users and also some questions related to how we can store 5xinfinity matrix information thats accessible quickly

also every 30 days we process the last 30 days of information so I need a DBA to help work out the best way we structure and use the database to allow this on millions of users