1998-2002, Lin Tongbai International Engineering Consulting Company/American Senior Bridge Engineer and Senior Project Manager.
2002-2005, chief engineer and senior project manager of Lintongbai International/Changda Bridge Division, USA.
From 2003 to 2005, Lin Tongbai International (China) Engineering Consulting Co., Ltd./Technical Director and Deputy General Manager.
Since 2006, Guangzhou Hanyang Engineering Consulting Co., Ltd./corporate, executive director, president and technical director.
20 1 1- Up to now, Guangdong Yuetie Hanyang Technology Co., Ltd./enterprise legal person, executive director and president.