Idk about Uber in particular, but aside from legit programmers using AI to help them do legit work faster, there are people spamming it for metrics. And the hiring pipeline has gotten screwed up somehow, like half the people who reached the onsite interview for a technical role lied about all their technical skills, or they didn't lie and manage to pass hiring but then only take the tasks that AI can solo. And if it can't, waste tokens until giving up.