Gale said Facebook's formula "... helps weed out any differences that might happen between different types of people we're hiring."
For example, studies indicate women tend to accept the first offer they're given, while men negotiate for more. And, according to research from McKinsey & Co., when women do ask for more in a negotiation, they're viewed as too aggressive.
"We do a ton of benchmarking around our jobs that's based on our job category, the level, the location," Gale said. "We have a very, very tight stance around compensation."
Have a story to share about working at Facebook? Email acain@businessinsider.