I'm from Toronto, Ontario - graduated from the University of Waterloo in 2003, and have been working at Microsoft since then. I interned twice on the Visual Studio for Devices team, and started my full time job there as well. I also worked on the VS Core team briefly, before joining on the VB team, where I am now.
On the Device team, I worked on the native debugger; specifically, I worked on the expression evaluation piece (if you interact with the debugger by inspecting values and changing values, you interact with the expression evaluator). I also worked on some of the high-level communication between the debugger and the device, as well as some other random tasks.
On the Visual Basic team now, I work on the compiler team. We are focused mainly on LINQ, but we are also working on other things such as improving performance and stability of the compiler.