I've been writing scraper code since 1998, and on a project I'm a part owner in for the last four years, using a variety of languages and technologies: C#, VB, ColdFusion, and Ruby. This covers a variety of tools, including Selenium, Mechanize, iMacros, and more. I've scraped basic sites, to those with cookies involved, to sites completely generated on the client-side in JavaScript. I've even written tools that can automate the download of files (difficult to the do, since the file download dialog box is an operating system feature, not something that can be automated through HTTP).
As for automation, I've setup typical scheduled tasks, as well as a fully distributed, automated workflow using technologies such as Amazon Web Service's queue service and Resque/Sidekiq/Redis
As for MySQL, I've worked with it since 2000.
I've also worked with a number of tools and technologies to work with PDFs and extract information.
I have been with Freelancer for 12 years. I'm a full time independent consultant, with full time availability, based out of Houston, Texas, in the United States. Your project would be worked immediately. I would be doing the work; I am not bidding on projects and passing them off to less experienced staff, a common problem on this type of website.
If you have any questions, please feel free to contact me.