Actually, based on things that she has written, she should probably have the title "Data Scientist" or "Chief Data Scientist." If you are into machine learning read some of her stuff.
We build systems on top of the bitly data. This involves things like algorithms for identifying spam and malware, real-time content recommendations (which you can see in http://news.me), categorical analysis, etc.
We also do a few pure research studies, like this one: http://www.readwriteweb.com/archives/does_your_device_change...