President, Korea English Education Society, 09/2025-08/2027

Associate Editor, Innovation and Education, 01/2025-12/2027 

Editorial and Publishing Director, Korea Association of Teachers of English (KATE), 08/2024-07/2026

Vice President, Korea Association of Primary English Education (KAPEE), 02/2020-01/2026 

Vice President, Korea English Education Society (KEES), 09/2015-08/2025

Editorial Committee Member, English Teachers Association in Korea (ETAK), 09/2022-08/2024

Advisory Committee Member, Korean Educational Development Institute, 03/2022-02/2024

Organizing Committee, 2020 SNU (Seoul National University) International Conference on Linguistics, SNU, Seoul, Korea, 10/2020

Chair, SIG (Special Interest Group): Teacher Development, Korea Association of Teachers of English (KATE), 02/2019-01/2021

Vice President, Editor-in-Chief, Applied Linguistics Association of Korea (ALAK), 01/2019-12/2020

Steering Committee Member, Applied Linguistics Association of Korea (ALAK), 01/2017-12/2018

Editorial Committee Member, Korea Association of Secondary English Education (KASEE), 02/2016-01/2022

Director of Public Relations, Pan-Korea English Teachers Association (PKETA), 01/2016-12/2017

Editorial Committee Member, Asia TEFL, 10/2013-08/2022

Editorial Committee Member, Applied Linguistics Association of Korea (ALAK), 01/2015-12/2016

Editorial Committee Member, Language Research, 05/2014-08/2026 

Secretary General, Korea English Education Society (KEES), 09/2013-08/2015

Vice President, Korea Association of Foreign Languages Education (KAFLE), 01/2013- 09/2013

Editorial Committee Member, Korea Association of Teachers of English (KATE), 07/2010-06/2019

Auditor, Korea Association of Primary English Education (KAPEE), 03/2012-02/2014

Academic Affairs Director, Asia TEFL, 11/2011-09/2013

Director of Public Relations, The Modern English Education Society (MEESO), 09/2011-08/2013

Secretary General, Korea English Education Society (KEES), 09/2011-08/2013

Editorial Committee Member, Korea Association of Secondary English Education (KASEE), 02/2011-01/2013

Steering Committee Member, Applied Linguistics Association of Korea (ALAK), 02/2011-01/2013

Editorial Committee Member, English Teachers Association in Korea (ETAK), 09/2010-08/2016

Director of Publication, Linguistic Society of Korea (LSK), 07/2010-12/2012

Secretary General, Korea Association of Primary English Education (KAPEE), 02/2010-01/2012

Research Officer, Korea English Education Society (KEES), 09/2009-08/2011

Conference Co-chair, Second Language Research Forum (SLRF) 2008, UHM, Fall 2008

Student Representative on the Ph.D. Admissions Committee, SLS, UHM, Fall 2007-Spring 2009