He was also an author of the first Fortran 77 compiler, was part of the original group at Bell Labs that created the Unix operating system,[1] and participated in development of the ALTRAN and EFL programming languages.

He was previously Chief Scientist at Schmidt Futures,[2] and was a member of the dean's External Advisory Board at the University of Michigan School of Information.

[4][5] Feldman is also a member of the Editorial Advisory Board of ACM Queue,[6] a magazine he helped found with Steve Bourne.

in astrophysical sciences from Princeton University and a Ph.D. in applied mathematics from the Massachusetts Institute of Technology.

In 2010 the University of Waterloo awarded him an Honorary Doctorate of Mathematics.