I've worked as a Power System Analysis Head before and I've done some research/thesis about my company's power system. During that time i was also the System Administrator of our computer system.
Onlinejobs.ph "ID Proof" indicates if "they are who they say they are".
It DOES NOT indicate skill level.
ID Proof scores are 0 - 99 with 99 being the best. It is calculated based on dozens of data points.
It's intended to help employers know who they're talking to is real, and not a fake identity.