· CTO, Arxan Technologies Inc.2001–2017
· Ph.D. in Electrical Engineering and Computer Science, Johns Hopkins University1982–
· Distinguished Professor of Computer Science, Purdue University1982–
· M.S. in Electrical Engineering and Computer Science, Johns Hopkins University1980–
· Software Engineer, Wang1977–1978
· B.E. in Electrical Engineering, American University in Beirut1975–
· Software Engineer, Siemens1975–1976