(The Wizard of 'Ahhhh!'s)

... our secret weapon, our skunk-works within our skunk-works, a system designer and administrator whose brilliance exceeds his age, whose CUBS experience stretches back to his late teens, and whose hardware prowess led him to spec and build the prototypes of all our own in-house gear, as well the hardware we offer.

What Marcus is to what you see, Jonathan is to what you don't see.