Speaking as a qualified engineer who makes his living as a programmer I'd suggest that plenty of evos are also engineers and programmers. Any engineer who had courses like the ones that I studied for my Civ Eng major would have to have been asleep to be continuing to give YEC in particular any credence. My undergraduate understanding of geology, hyrdraulics, and soil mechanics is quite sufficient for me to be able to dispose of AiG style arguments from my own personal knowledge, in most cases. Given the nature of debating sites like FR I'd suggest that the large number of engineers/programmers in this debate is simply a matter of self-selection; such people are the most likely to be computer-literate enough to be comfortable debating on the internet.
I have a pop-psych explanation, if you can stand it. Enginners live in a world of design; they create things from simpler elements. So seeing and admiring something intricate and complicated, they tend to admire the designer. Scientists tear things apart; and when we try to understand complicated processes, we look for explanations in terms of simple components. So evolution appeals to our prejudices, where it conflicts with engineers'.
You aren't the first one to notice this correlation ;)
-> Salem hypothesis