Expert Wordpress Developer Needed for Plugin

I need someone who is extremely proficient with WordPress for a large autoblogging plugin project. Will be similar to [login to view URL] The project will involve using lots of APIs such as Amazon, Flickr, Yahoo Answers etc. The plugin has to be built in the correct way, no modifications to core wordpress files, ajax functionality for the admin panel etc. Please provide me with links to past WordPress plugins you have built, even better if I can try them out. Links to past work with APIs is also appreciated. A Full spec will be provided to the freelancer or company that can demonstrate past wordpress work. Thanks!