For five years, Meenal Balar’s job was to figure out how to get more people to use Facebook — everywhere in the world. In 2009, as the growth team was just coming together, the company already had its eyes fixed on a billion users, and Balar was one of the key players that would get them there by answering questions like: How do we onboard mobile-only users? Okay, now how do we do it in the remotest corners of the globe? [Source: First Round: Review]