Luiz DeRose is a senior principal engineer and the programming environments director at Cray Inc, where he is responsible for the programming environment strategy for all Cray systems. Before joining Cray in 2004, he was a research staff member and the tools group leader at the Advanced Computing Technology Center at IBM Research. He has a PhD in Computer Science from the University of Illinois at Urbana-Champaign. His research has been primarily on topics of compilers and tools for high performance computing. With more than 25 years of high performance computing experience and a deep knowledge of its programming environments, he has been responsible for the design and development of many performance tools that have had significant technological impact in academia and industry, such as FALCON, SIGMA, the HPM Toolkit, the CrayPat Performance Collector, the Cray Apprentice2 Performance Analyzer, and the Cray Comparative Debugger.