Chang took office as the Vice Minister of National Defense for Armaments on 28 April 2017.[2][3] He is the first academic to serve in this post.[4] He was the opening speaker at U.S.-Taiwan Defense Industry Conference 2018 in Maryland where he spoke on the need for Taiwan to balance foreign and domestic defense suppliers.[5] Chen stepped down from his position at the Ministry of National Defense on 1 July 2021 to work in the Presidential Office as a military strategy adviser, and was awarded the Order of the Cloud and Banner.[6][7]
^陳建興 (2017-04-28). "國防部副部長新職介紹暨授勳 蒲澤春、張冠群就任" (in Chinese (Taiwan)). 軍聞社 (Military News Agency). Archived from the original on 2017-04-28. Retrieved 2017-04-29.