When Nedry was puzzled by some of the work he had been contracted to do by InGen, he asked Fellows for some assistance. Nedry stated how much computer memory the database required, Barney said it must be a mistake; nothing takes up that amount of space. Due to the non-disclosure agreement Nedry had signed, he wasn't able to give enough info for Fellows to make anything but a rough, but ultimately correct, guess: that InGen was doing something involving DNA.
He was briefly mentioned in the movie, with Hammond telling Arnold to "Phone Nedry's people... In Cambridge..." only to discover that the phones were dead.