Shujun is a Visiting Professor at the Department of Computer Science, University of Surrey from November 2017.
He is a Professor of Cyber Security at the School of Computing, University of Kent and the Direct of Kent Interdisciplinary Research Centre in Cyber Security (KirCCS) from November 2017. Before that he was a Senior Lecturer and a Reader at the Department of Computer Science, University of Surrey from 2011 to 2017. He was a Deputy Director of Surrey Centre for Cyber Security (SCCS) from 2014-2017. See his personal website for more information about him.