Andrei Costin is a Computer Science graduate of the Polytechnic University of Bucharest where he did his thesis work in Biometrics and Image Processing. While starting out his IT-career in the Computer Games industry, he has worked in the Telecom field and also was a senior developer at a specialized firm programming various GSM/UMTS/GPS sub-systems. He is known as the "printer guy" for his "Hacking MFPs" and "Hacking PostScript" series of hacks & talks at various international conferences.