Yeah, I hate it when companies hire dolphin engineers instead of humans. Dolphin programmers will work for half of what a human one will -- often times being paid under-the-table in fish.
I've heard, though, that they have an uncanny habit of disappearing one day, just before disaster strikes, with nothing more than a "so long, and thanks for all the fish".
Just a random guess, but I bet if you added up all the costs of dolphin engineers in the US, they cost twice as much. They need those giant aquariums to keep them happy!