 Between 2000 and 2010, he worked for Acer Inc. as Vice President of the e-Enabling Service Business Group, and between 2010 and 2012, he worked for Google as the Director of Google's hardware operations in Asia.Chang was appointed as a Minister without Portfolio of the Executive Yuan in 2012.On March 3, 2014, the National Science Council was upgraded to the Ministry of Science and Technology, and Chang served as its first minister.