Behind the pseudonym "rioki" is Sean Farrell.
Sean Farrell is an information technology engineer (Dipl. Ing. Informationstechnik) and is currently working for Siemens in Karlsruhe Germany. He has worked on Simatic PDM, WinCC and PCS7 Engineering for Siemens. He completed his higher level education at the University of Cooperate Education with the Federal Waterway Engineering and Research Institute. (Diploma Thesis)