> Facebook, alarmed by this data, commissioned a second study by Jay Parikh, its head of infrastructure, to investigate any potential issues. Parikh’s findings suggested that the code rejections were due to engineering rank, not gender. However, Facebook employees now speculate that Parikh’s findings mean female engineers might not be rising in the ranks as fast as male counterparts who joined the company at the same time, or perhaps that female engineers are leaving the company more often before being promoted.