Before coming to Tech he was a postdoctoral researcher at the Santa Cruz Institute for Particle Physics (SCIPP) and University of California in Santa Cruz (UCSC) from 2008 to 20011 working on the VERITAS and CTA experiments. Before coming to the U.S. he was a postdoctoral researcher at a joint position at the Humboldt University, Berlin, Germany and the Max-Planck Institute for Physics, Munich, Germany. Nepomuk obtained his PhD from the Technical University Munich / Max-Planck Institute for Physics (2004-2007) and his Diploma from the Ruprecht Karl University of Heidelberg, Germany (1998 to 2003).