As Facebook Grows, a Few Leaders Leave and More Join

Facebook appears to be quickly growing its number of employees this year, and we’ve heard the number is up past 1300 already. As its ranks and office spaces grow, it is both hiring new leaders — especially from other Silicon Valley companies — and saying farewell to a few earlier employees (many of whose options have vested). Here’s a quick look at who’s going and joining since last fall.

Going:

Scott Marlette joined Facebook in 2005 and has worked on a variety of big-name projects, including photos and a versions of the inbox. We’re not sure where he’s headed now, but he left in January of this year.

Dave Morin was the first manager of Facebook’s developer platform. He was responsible for much of the policy and marketing around it before and after its big launch in May of 2007, after having joined from Apple in 2006. He left this past January to work on a startup that’s currently in stealth mode.

Yishan Wong announced on his profile Monday that he’s leaving — within the next couple of weeks, Facebook confirmed with us. Wong has held a string of key engineering roles since moving over from an engineering manager job at PayPal in 2005. At one point he was a director of engineering before he decided to focus on writing code. Among other projects he’s helped manage: crowd-sourced translations, self-serve ads, payments, Connect, Beacon, platform and internal applications, mobile and staff training.

Joining:

Jenna Adorno was previously a senior technical recruiter at Facebook strategic investor Microsoft. Now she’s the recruiting manager at Facebook, and partially responsible for upping Facebook’s head count now.

Delfina Eberly recently came over from Critical Path, an enterprise software services company where she was the chief information officer. She’s now Facebook’s Director US Data Center Operations.

Jonathan Gray cofounded Streamy, a personalized news service/social network, but the startup didn’t work out. He joined this month as an Open Source Developer Advocate and engineer at Facebook.

Monica Keller was a group architect at rival MySpace before she was poached by Facebook last February. She’s now its Open Web Standards Program Manager.

Jay Parikh quietly left his job as the engineering and operations vice president at white-label social network Ning last fall. He quickly joined Facebook as its Director of Engineering.