C# data minning utility

We are looking for an experienced programmer to develop a program in either c# or java that will crawl a public web site and extract specific data, saving to a specific CSV file format. The program will traverse multiple web pages of a web site, each with “pages” of data as presented by a FlexUI javascript control. The data should be exported to a comma delimited file and will contain 15 to 20 fields, 50 records per page. The program must be able to accept parameters such as different search criteria on the website and different naming of the output file, for instance. The candidate will need to possess experience in HTML, JavaScript, Ajax as well as well as basic programming in either Java or .NET. Experience parsing data from a web site implemented using JQuery is strongly prefered. We are looking for a quick turnaround on this simple project. Successful completion will likely lead to follow-up projects.