I completed my graduate studies in MIT's LIDS, an applied math-ish program within the EE department. Now I do research in industry at Analog Devices | Lyric Labs, primarily on algorithms for the audio source separation ("cocktail party") problem.
My thesis research was on the mathematical side of game theory with a view towards computation. In terms of mathematical classifications, I consider myself more of a "theory builder" (at least aspirationally) than a "problem solver" and I have a preference for "soft analysis" over "hard analysis".