CNBC: Facebook's former CIO was told to fix its calendar system, or else — now, his new start-up aims to solve the same problem for everybody

By Salvador Rodriguez

Two weeks after Tim Campos started as chief information officer of Facebook in 2010, Mark Zuckerberg summoned him to his office for an urgent meeting.

"I thought we were going to have a strategic meeting," Campos told CNBC.

Once there, Campos says, he met with Zuckerberg's executive assistant, Anikka Goodman, who lambasted the company's internal calendar app. Goodman told CNBC she "expressed urgency" that Campos fix it.

Read more at CNBC.