He began his professional teaching career in 1998 in the Western-suburbs of Chicago, Illinois. During his teaching career in the USA, he taught at two nationally recognized high schools in Illinois teaching AP Microeconomics and Macroeconomics, International Economics, Cisco Computer Networking, and Consumer Economics. In 2015, Mr.Su began his internatonal teaching career by accepting a position to teach at the number one ranked Shenzhen Foreign Languages High School. During his tenure, at the prestigous boarding school, he would lead the economics program and eventually oversee the humanities department as Head of Department. During his tenure, he would also write an IGCSE Economics Cambridge e-textbook published by Kognity, 2020, Swedish e-textbook publisher. He also would write an IGCSE Economics e-workbook published by Pamoja, 2020, Oxford, UK. In his free time he writes for Seeking Alpha.com as a syndicated columnist writing about macroeconomics.