"I loved the sense of accomplishment I got when I tested a new component, figured out the best way to determine whether it was an improvement or not, evaluated the data that I took and could show clearly that it was a winner. That's a potential product. That's a win for the company. Obviously, the goal is that it should go that smoothly. But an equally exciting part of engineering, and really, the crucial part for making progress, is being able to solve problems. There's nothing to compare with the satisfaction of unravelling a mystery about why a component or a system didn't work the way it was supposed to and then fixing it. I guess you could say I didn't mind the hard and sometimes frustrating work to get to that feeling of victory."