Biographical Sketch: Jan Samohyl has been working in CA Technologies for more than 5 years as a software developer, primarily in mainframe assembler and C. He works on performance management and resource accounting products. Although this is his first job in the industry and also first experience with mainframes, programming is his hobby since childhood. Among other things, he programmed on Z80 and x86 computer architectures, and lately, he enjoyed Python and Common Lisp.