The problem is that leetcode in itself is not a calibrated test. So, given any particular leetcode score, assuming the person is there, tells you literally noth

The problem is that leetcode in itself is not a calibrated test. So, given any particular leetcode score, assuming the person is there, tells you literally nothing about skills involved. Big corporations do not use it, and they would be most likely to have actual also likely untranslatable employment data. Then there are specifics of any job - knowledge of particular system or rapid learning and experimentation skills tend to trump optimization and algorithmic knowledge. Leetcode does not really test any of that. It is also particularly bad at weeding out cheaters. :)