Zbigniew Szadkowski obtained in 1987 his PhD in Theoretical Physics at the University of Lodz (Poland) based on thesis: “Quark mixing in the  SU(4) x SU(4) and SU(6) x SU(6) chiral symmetries”. In 2007 he obtained the D.Sci. degree in Experimental Physics based on the thesis “Triggers in the Pierre Auger Observatory”. Since 1998 he has been working in the Pierre Auger Observatory designing the 2nd level trigger implemented in all 24 fluorescence telescopes, the 1st level trigger implemented in all 1680 surface detectors, the Front-End Boards with ACEX (800 pieces) and Cyclone (900 pieces) FPGAs, many algorithms for triggers. Within 1999-2002 worked in the Michigan Technological University (USA), 2002-2003 in College de France (Paris) and within 2003-2006 in Bergische University of Wuppertal (Germany) In Kandy his paper has been recognized as the best paper on the conference