N. Axel Naumann is an Applied Physicist at CERN, Switzerland. He is currently a lead developer of the ROOT project and responsible for cling, a C++ interpreter. Axel is CERN's representative at the C++ committee (JTC1/SC22/WG21) of the International Standardization Organization (ISO). Born in Kassel, Germany, on 9 May 1974, he studied Physics and Mathematics at the Westfaelische Wilhelmsuniversitaet in Muenster, Germany, and received a PhD at the University of Nijmegen, The Netherlands. Before coming to CERN, Axel worked at private companies and the Fermi National Accelerator Laboratory (Chicago, USA). Axel has given several keynote presentations, for instance at ACCU 2015, CHEP 2013 and a Google Tech Talk. Axel has published work in physics and computing.