Jeff Seibert is an experienced serial-entrepreneur and currently Senior Director of Product at Twitter. Previously, Seibert was the CEO of Crashlytics, which he co-founded in 2011 with Wayne Chang. Crashlytics delivered crash analysis tools for iOS and Android apps via an SDK that reached 300 Million mobile devices worldwide. Crashlytics was acquired by Twitter in 2013 for $259m. In 2007, Seibert co-founded