Before joining Santa Clara, Christian was an assistant professor at Universidad Carlos III, Madrid. Prior to that, he worked as a research economist at the London School of Economics. He has been a visiting research scholar at UC Berkeley, Stanford, the World Intellectual Property Organization (WIPO), as well as Ludwig Maximilians University in Munich. He has been involved in policy related work for various organizations including WIPO, the European Patent Office, the UK Intellectual Property Office, the Chilean Intellectual Property Office, and the International Trade Center UNCTAD/WTO.