Twitter API Experts Wanted!

We are looking for Twitter API Experts to work with our rockstar team!

We have several websites that contain online guestbook (where users can post comments, photos, videos, etc...). In order to post, the users have to create an account in our system. We want to give them the option to log with their Twitter account.

The information related to the user must be sent to our application (email, name, avatar, etc...). Our system is written in ASP .Net MVC (C#) + IIS + MSSQL. 

Our system is the same for all websites... so they use the exactly same set of files, so (if needed) the logic to differentiate the websites/guestbooks must be based in the the domain.

Please send us examples of your previous work with Twitter API because only experienced biders with similar work will be considered.