and Ph.D. courses in applied mathematics, computer science and physics all in one year of studying.
From 1986 to 1990, Stevens was enrolled into a Ph.D. program at the Robert R. McCormick School of Engineering and Applied Science of Northwestern University.
[3] While studying at Michigan State University, Stevens served as applications programmer at its College of Natural Science.
From 1982 to 1985, Stevens was a president of Auriga Software Company, and from 1982 to 1983 and 1983 to 1984 was a resident associate with Argonne National Laboratory and systems programmer with Western Michigan University.
From 1985 to 1991, he was promoted to manager at the Advanced Computing Research Facility and in 1991 became associate division director of Argonne National Laboratory.