Draw bridge operator.
These days, any lighthouses still in use are automated, but back in the day there was a fair amount of maintenance involved. Lugging buckets of oil up to the top of the tower to feed the lamp, trimming the wick, etc. And it had to be done at all hours of the day & night. Plus, more often than not you were stuck in a place so desolate that it makes Buttfuck Nowhere look like Times Square.