2006 - 2008
Korean CSAT English test-prep instructorETOOS - SEOUL, Republic of Korea
2008 - 2010
Korean CSAT English test-prep instructorVisang edu - Seoul
2010 - 2015
Korean CSAT English test-prep instructorWstudy - Seoul
2015 - 2024
Korean CSAT English test-prep instructorbom's English - GwangJu, Republic of Korea
2025 - Current
Korean teacherKvillage - Japan