It's not a sales position. It is low-level relatively speaking, but hey, they can call me "office donkey" on my businesscard---as long as my paycheque + bonus imply otherwise, I'll handle it.
Incidentally, since this is a fashion forum, and since it is common knowledge you don't dress better than the interviewer-- a few facts:
This guy interviewed me twice, both times with a button down dress shirt with 3 buttons open! Is this the new austerity uniform?
The CEO also wore a button down with 3 buttons open, with a trad looking suit. He is 6'7" at least and lanky, so I figure fashion doesn't really go hand-in-hand for him.
I went first time in a Zegna Trofeo gray pinstripe. Second time, I wore a RLPL black-charcoal chalkstripe. What do you do in such a situation? Take off your suit jacket when the interviewer comes in and you shake hands? I did feel awkward and overdressed. Also, with the CEO, I was a little uncomfortable, he was a humungous man slouched on a chair and it was pretty awkward.