· Chief Scientist and Co-founder, AppCensus, Inc.2019–
· Research Director, Usable Security and Privacy Group, International Computer Science Institute (ICSI)2013–
· Research Scientist, University of California, Berkeley2011–
· Scientist, National Institute of Standards and Technology (NIST)2010–2011
· Postdoctoral Researcher, Brown University2009–2010
· Research Intern, Microsoft Research2008–
· Research Intern, Xerox PARC2006–
· Doctor of Philosophy (Ph.D.) in Computer Science, Carnegie Mellon University2004–2009
· Bachelor of Science (B.S.) in Computer Engineering, University of Virginia2000–2004