Fernando Pérez is a staff scientist at Lawrence Berkeley National Laboratory and and a founding investigator of the Berkeley Institute for Data Science at UC Berkeley, created in 2013. He received a PhD in particle physics from the University of Colorado at Boulder, followed by postdoctoral research in applied mathematics, developing numerical algorithms. Today, his research focuses on creating tools for modern computational research and data science across domain disciplines, with an emphasis on high-level languages, interactive and literate computing, and reproducible research. He created IPython while a graduate student in 2001 and continues to lead its evolution into Project Jupyter, now as a collaborative effort with a talented team that does all the hard work. He regularly lectures about scientific computing and data science, and is a member of the Python Software Foundation, a founding member of the NumFOCUS Foundation, and a National Academy of Science Kavli Frontiers of Science Fellow. He is the recipient of the 2012 Award for the Advancement of Free Software from the Free Software Foundation