Angelos is the John H. Weitnauer Technology Transition Endowed Chair Professor and Georgia Research Alliance Eminent Scholar with the School of Electrical and Computer Engineering at Georgia Institute of Technology. He is a Fellow of both the IEEE and the ACM.
From July 2013 to July 2014, he was on leave with the National Science Foundation (NSF), where he served as Program Director for the Secure and Trustworthy Cyberspace Program (SaTC).
From July 2014 to December 2018, he was on leave with the Defense Advanced Research Projects Agency (DARPA), where he served as Program Manager with the Information Innovation Office (I2O).
Prior to Georgia Tech, he was an Associate Professor with Tenure with the Department of Computer Science at Columbia University and Director of the Network Security Laboratory, where he conducted research in computer and network security since 2001 (when he received his Ph.D. from the University of Pennsylvania).
He has over 250 peer-reviewed publications in technical conferences and journals, and has co-authored two books; he is the named co-inventor in 58 issued US patents; he has served as a member in over 100 program committees and has chaired several conferences in the field; he has co-founded 4 security startups, and has served in a number of advisory workshops for the Department of Defense, the National Science Foundation, and various US agencies.