· Adjunct Professor, The University of Texas at Dallas2024–
· Professor And CCI Faculty Fellow, Virginia Tech2024–
· Ashbel Smith Professor Of Computer Science, The University of Texas at Dallas2021–2024
· Visiting Scholar, University of California, Berkeley2020–2024
· Chief Software Architect And Founder, Data Security Technologies LLC (Current)2016–
· Professor, The University of Texas at Dallas2015–2021
· Visiting Scholar Associate, Harvard University2013–
· Associate Professor (with Tenure), The University of Texas at Dallas2011–2015
· Assistant Professor, The University of Texas at Dallas2005–2011
· Doctor of Philosophy (Ph.D.) Computer Science, Purdue University2000–2005