Hanjin Heavy Industries & Construction, Hanjin Shipping, Korea Rating, Namhae Chemical, Inter-M, Compensation, Gabia, K & X, Ilsung New Drug, Scheduled Industry, SBI Savings Bank, Dongbu Securities, Gyeongnam Corporation, Banglim, Mona Lisa, Seohae Construction, Hanseo Industrial , Hyundai Petrochemical, Onyang Tourist Hotel, Jeonbuk Development Corporation.
Offered management consulting for private university, Performed accounting audit and tax adjustment for Pohang University, Catholic University, Far East University
Offered a number of consulting and tax reconciliation consulting services including K-water internal accounting management system
Kyung Hee Cyber University, Daejin University, Seoul Digital University Adjunct Professor
Auditor, Korea Food and Drug Administration, Korea Food and Drug Administration (2013 ~ 2015)
- Master of business