Arpan Sen is a lead engineer working on the development of software in the electronic design automation industry. He has worked on several flavors of UNIX, including Solaris, SunOS, HP-UX, and IRIX as well as Linux and Microsoft Windows for several years. He takes a keen interest in software performance-optimization techniques, graph theory, and parallel computing. Arpan holds a post-graduate degree in software systems. You can reach him at firstname.lastname@example.org.