This post on Quora has a long list of jobs unique to specific countries. For example, in Iran, there are professional licence plate blockers, like this guy:
And why doe such a job exist? You will have to read this: What is a unique job that you’ve only seen in your country? – Quora
The whole thread contains dozens of jobs you can’t believe exist, but once you know something about them, they make sense. A great read.