2016-Present : Senior Engineer of Ritta Co.,Ltd., LLDPE Expansion and HEXENE-1 Project, Rayong (Project Cost 269,499,000 Bath)
2015-2016 : Senior Engineer of Ritta Co.,Ltd., Homepro Chaiyapruek Project, Nonthaburi (Project Cost 200,000,000 Bath)
2014-2015 : Senior Engineer of Ritta Co.,Ltd., Big C Fresh Distribution Center Project,Chachoengsao (Project Cost 476,000,000 Bath)
2014 : Senior Engineer of Ritta Co.,Ltd., BMW Manufacturing Project,Rayong (Project Cost 60,000,000 Bath)
2013-2014 : Senior Engineer of Ritta Co.,Ltd., Big C Mini Distribution Center Project, Prathumthani (Project Cost 519,600,000 Bath)
2012-2013 : Junior Engineer of Ritta Co.,Ltd., Rojana Greenfield Project, Ayutthaya (Project Cost 585,000,000 Bath)
2010-2012 : Junior Engineer of Ritta Co.,Ltd., Gateway Ekamai Project, Bangkok (Project Cost 1,560,000,000 Bath)
2008-2010 : Junior Engineer of Ritta Co.,Ltd., North Park place Condominium, Bangkok (Project Cost 750,000,000 Bath)
2007-2008 : Junior Engineer of Ritta Co.,Ltd., Tesco Lotus Singburi Project, Singburi (Project Cost 175,000,000 Bath)
2006-2007 : Junior Engineer of Ritta Co.,Ltd., Tesco Lotus Bang-Pa-In Project, Ayutthaya (Project Cost 145,000,000 Bath)
2005-2006 : Site Engineer of Ritta Co.,Ltd.,t Renovate Tesco Lotus Suratthani Project, Suratthani (Project Cost 104,000,000 Bath)
2005 : Site Engineer of Ritta Co.,Ltd., Homepro Phitsanulok Project, Phitsanulok (Project Cost 200,000,000 Bath)
2004-2005 : Site Engineer of Ritta Co.,Ltd., Bangkok Airway Building at Suvarnabhumi Airport
สำหรับสมาชิกเท่านั้น