I remember viaweb, or webgen as I think it was called at the time, I was at Pointcast then who were also skirting around Yahoo. Back then I am not sure there was much of a distinction between computer engineering and either of CS or double E. It seemed prudent in the 90's to also get a good grounding in the digital systems side of computer science because it was a time where knowledge of the hardware gave software a significant edge. Which this is still true in some areas today, for most people, concepts like byte alignment and endian'ness are irrelevant.

From what I remember there were quite a few making web based software, Hayden's Critical Path for example springs to mind, and of course Yahoo and Nutscrape (as it was fondly called by those unfortunate enough to have to work on it)