Vampire Arthur Cayley, or even vampire Ada Lovelace, are both too young, with only a couple of centuries of experience. Unfortunately, vampire Gottfried Leibniz would be too old.
I've heard that Newton used to publish work which he'd done with the calculus, but presented it geometrically, so it would make sense to his peers.
Now I'm imagining our vampire at a whiteboard, making geometric constructions with compass and straight-edge, then translating the solution back into algol-y brace-and-semicolon pseudocode for the benefit of the befuddled interviewee...