The notorious Cyan Helkaraxe could only be called an engineer by those who would call Dr. Eggman a scientist; partially accurate, but by no means the whole story...
Cyan is a rodent of wide interests, who has applied his unique talents to many fields; especially in electronics, machine-level programming, and music. He is most well known to the wider world for his early and essential work -- which led to his place on the (now discontinued) SSRG -- creating hacking and editing utilities for the Sonic ROMs, for use in the emulation scene.
His unique talents have been showcased on his own two previous web sites - firstly, the Underground Zone, where he was the first to take a violently pro-Sonic Underground stance on the net - and then Sonic Server, a gaffa-tape home-foam Linux box designed solely to hold the things too weird for emulationzone.org. Of note among these are Cyan's collection of fan art - not to be missed by lovers of wobbly mouse lines!
In person, Cyan is a mild and unobtrusive rodent, who seeks only to do his good work to an unsuspecting world. This mildness lasts right up to the point where someone mentions Windows.