Hans Boldt worked as a software developer for 26 years at the IBM Canada Laboratory in Toronto , mainly on S/38, AS/400, and iSeries RPG compilers. From 2004 to 2007, he worked on the PL/X compiler on the zSeries, which gave him an increased appreciation for the iSeries. With a B.Sc. (Honours) in Computing and Information Science from Queen's University, Hans' interests range from programming languages to Web design to Linux. His other interests include photography, model railroading, and stained glass art.