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William Chang is a Senior Engineering Manager at Medallion, a software platform that automates credentialing, licensing, and compliance for provider networks. Prior to this role, William held positions at Foursquare, Factual Inc, Ad Hoc Labs, Silverlake Products, LLC, Rocket Propelled Apps, People Media, Inc., Yahoo!, and Houlihan Lokey. William's experience ranges from software engineering to business development and financial analysis in various industries such as technology, online dating, and finance. William holds a BA/BA/MA in Economics and Computer Science from The Johns Hopkins University.