· Technical Director for Media Processing Research, Defense Advanced Research Projects Agency (DARPA)
· Director, Advanced Computing Technology Center, Department of Homeland Security (DHS)
· Technical Director for the Homeland Security Advanced Research Projects Agency (HSARPA), Department of Homeland Security (DHS)
· Proprietor, Ecosphere R&D
· Principal Investigator, Research Initiatives, International Computer Science Institute (ICSI)
· Executive Scientist, KaDSci
· Graduate Student, University of California, Berkeley
· Lecturer, University of Maryland School of Public Policy
· Fellow, University of Miami, Institute for Data Science and Computing
· Advisory Board Member, Virtualitics