I interview people. A fair bit.
FYI: If you're a new grad, I basically couldn't care less about your design skills. If you're otherwise good, you'll learn said skills over time through experience. It's not something one can expect out of someone straight out of college. More than likely, you haven't built many non-trivial systems. You don't have the experience to warrant major expectations. If you have, double awesome! But it's not an expectaction.
