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Chris Haseman is the mobile engineering manager at Tumblr. Living in Brooklyn, he has been a professional mobile software engineer since 2003. He’s worked on software for Motorola’s BREW SMS/MMS messaging software for the Razr/Krazr. He also worked on MusicID, a Java ME app for identifying music preloaded on all AT&T feature phones. More recently, he was the lead developer on doubleTwist’s music player and AirSync applications.