Hi,
My name is Jerome, I have been working for the past 16 years as an information security expert.
I am ranked #1 in Web Security here on Freelancer.
In order to place an accurate bid, can you provide more information about your website:
-is your site running on Linux/BSD or Windows OS ?
-is your site on a shared hosting account or your own VPS/dedicated server ?
-what kind of applications is it running (CMS, shopping-cart, forums, game server...) ?
-was it coded by/for yourself or are you using a commercial/open source application ?
-are you storing sensitive information (credit card numbers etc) ?
-will you provide access to the source code + FTP (or shell access if it is a dedicated server)?
Note that your project's budget being $750 - $1500, it is not possible to bid lower than $750.
Best Regards.