There's a lot of AI training jobs that fit this perfectly now. Right up to the dissatisfaction - you really do feel like a cog in the system. It pays well, but it reminds me of those stories about Amazon workers who are afraid of taking pee breaks.

They'll promise that the love you and you'll do well, and suddenly you're flagged for low performance because someone used AI to check your work and nobody checked whether the work-checking AI is valid.