DBA Activities

I am looking for experienced database administrators to help with my business's database. I am using Microsoft SQL Server and MYSQL and require optimization, as my database is just under 2 GB in size. The optimization tasks include performance tuning, query optimization, reorganizing indexes, database clean up and more. All activities should be done in a professional manner and adhere to best practices, while keeping the database secure and reliable. I need a database specialist who can carry out these tasks quickly and efficiently, so that my business is able to accommodate more data also we require someone who will be able to tell us what else configurations are required for out smooth operation of our databases.