Heidi is a math nerd, and a computer geek just hoping that one day maybe, just maybe she'll solve one of the NP complete problems. Hey, a girl can dream can't she?
In reality, Heidi is a Search junkie. She developed her love for Search while in graduate school where she built a search engine for protein databases and that was it; she was hooked. She found herself at Microsoft in Bing, where she spent a good chunk of herself dedicated to all things Relevance. She dabbled around a bit with the other parts of the stack, but the draw of answering every single query correctly for every single user every single time they searched was just too strong to hold her back.
She's currently working on a project called Applause (http://my.applause.com) and trying to make a go in the start-up world by building the world's first personalized, social, mobile browser that someone actually wants to use. :)