gregbadros-smallest-croppedFacebook has just hired Greg Badros, a Google Senior Director of Engineering, we’ve learned. Badros joined Google in early 2003 and has worked his way up the chain since then. At Facebook, his official title will be Director of Engineering.

At Google, Badros was in charge of the AdSense engineering team from its formative years in 2004, through when it exploded in popularity with billions of dollars in revenues. He has also led the Google Calendar, Google Reader and Gmail teams. Since March 2009, he has led the Application Platform group. But it’s the AdSense experience that is particularly interesting here, as Facebook is attempting to better monetize its service.

Mike Schroepfer, who Facebook hired from Mozilla in July of last year, was the former as the Director of Engineering. It’s unclear what his roll will be now, though he’s not leaving, we hear.

Before Google, Badros worked at Go2Net which was later acquired by InfoSpace. He served as the Chief Technical Architect at both companies. His Google profile doesn’t reveal much about him, other than the schools he attended, and his blog — which he infrequently posts on.

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