Early in his career, Chang was a Project Management Consultant at Spinx, Senior Product Manager at Centerfield, and Director of Product at Battery Technology Inc.  For nearly two years, Chang was a Producer at DiscoverMe, a leadership summit with prominent figured in technology, finance, and media. At the same time, he was the Senior Product Manager at the FATE Lab. 
In April 2014, Chang became the Founder and Head of Product at FanBacked, a community focused crowdfunding platform.  In June 2016, Chang was a Partner and Director of Product Innovation at Sidebench. 
From 2009-2016, Chang ran his own consulting firm where he helped internet companies with strategy and growth. 
Currently, Chang works in product marketing at Block.one , a publisher of Decentralized Autonoius Corporations. Their first product, EOSIO, launched in 2018.  In addition, Chang is a Product Venture Consultant at the University of Southern California where he mentos students and alumni about startups, business strategy, product development, and marketing.