The University of Arizona

• Instructor: Basic Economic Issues, Macroeconomic and Global Institutions and Policy

• Teaching Assistant: Basic Economic Issues, Microeconomic Analysis for Business Decisions, Intermediate Microeconomics, Quantitative Methods for Economic Strategy, Experimental Economics

SK Telecom

• Marketing Division

• Customer Value Innovation Division

Korea Development Institute (KDI) School of Public Policy and Management

• Teaching Assistant: Advanced Microeconomic theory (graduate)

Korea University

• Teaching Assistant: Intermediate Microeconomics, Industrial Organization

Republic of Korea Army

• Platoon Leader / Battalion Personnel Officer (rank: lieutenant)