Dr. Che-Hsu “Joe" Chang is Appier’s Chief Strategy Officer. In this role Dr. Chang is responsible for Appier’s mergers and acquisitions (M&A), partnership strategy, overseeing the business’s overall health and global growth. As a member of the executive leadership team, he partners closely with the senior management to drive the long-term growth of the company and capture opportunities in new markets and technologies. Dr. Chang began his career at McKinsey and Co. in New Jersey and New York, USA, where he spent 7 years in co-leading and growing the healthcare and business technology practices. He also has extensive experience with startups (Flatiron Health) and global corporations (IQVIA). He brings more than 12 years of experience across business strategy, product management and management consulting to Appier. Dr. Chang earned his ScD degree in Public Health from Harvard University, and MS degree in Industrial Hygiene and BS degree in Physical Therapy from National Taiwan University.