Take a look at the careers of Ken Thompson, Rob Pike, Brian Kernighan, Larry Wall, James Gosling, Kirk McCusick, Allen Holub, Al Aho, Marvin Minsky, Daniel Friedman, Gerald Sussman, Lance Leventhal, John Carmack, John Romero, Paul Graham, Guy Steele, Christopher Date, Bill Joy, Eric Raymond, Douglas Comer, Andrew Tanenbaum, David Patterson, Jeffrey Ullman, Fred Brooks, or Jim Keller.