• BK21 FOUR leader, Dept. of Math. Sci., KAIST, Oct. 2023-2025.02023-2025.05.

• Director of Academic Affairs, Dept. of Math. Sci., KAIST, Sept. 2021-Jan. 2023.

• a managing editor of the Bulletin of the Korean Mathematical Society, KMS, Feb. 2019 ~ current.

• an editor of the Bulletin of the Korean Mathematical Society, KMS,  Jan. 2011 ~ current.

• IBS-CGP Advisory Committee, 2024-2026.

• a business director (International exchange) of KMS (2025.01.01-2026.12.31).

• a committee member (International exchange) of KMS (2025.01.01-2026.12.31).

• a committee member of KMO (KMS) (2013.01.01-2020.12.31, 2023.01.01-2026.12.31).

• a committee member of KMS Activity Group on Algebra (대한수학회 대수학분과 위원) (2018-2020, 2021-2023, 2024-2026)

• G-LAMP 사업 사업관리위원회 위원 (교육부) (2023.09.01-2025.08.31, 2025.09.01-2027.08.31).

• a business director (Policy Planning) of KMS (2013.01.01-2014.12.31, 2021.01.01-2022.12.31, 2023.01.01-2024.12.31).

• a committee member (Policy Planning) of KMS (2017.01.01-2018.12.31, 2021.01.01-2022.12.31, 2023.01.01-2024.12.31).

• Executive Director of the National Research Foundation of Korea (NRF 한국연구재단 비상임 이사)  (2020.09-2022.09).

• 자연과학단 수학분야 전문위원 (member of Review Board)  (the National Research Foundation of Korea 한국연구재단) (2020.11-2023.10, including reappointment).

• ESG 경영 추진위원회 위원 (the National Research Foundation of Korea 한국연구재단) (2021.11-2022.09).

• 성과분석위원회 위원 (the National Research Foundation of Korea 한국연구재단) (2021.03-2022.11).

• 여성과학기술인육성위원회 위원 (과기정통부, Ministry of Science and ICT, 2018.03-2022.03 (inclduing reappointment))

• 중장기발전계획실천위원회 위원 (KOFWST (Korea Federation Women's Sciences & Technology Associations)), (2018.01.01-2021.12.31).

• Awards committee (포상위원회 위원), KOFWST (Korea Federation Women's Sciences & Technology Associations)  (2014.01.01-2015.12.31, 2017.03.01-2017.12.31, 2022.01.01-2023.12.31).

• a vice-president (International exchange) of KWMS (2020.01.-2020.12.31).

• 교과과정심의위원회 위원, KAIST (2018.8-2020.9)

• a general affair director of KOFWST (Korea Federation Women's Sciences & Technology Associations) (2018.01.01.-2019.12.31).

• a organizing committee of KOFWST (Korea Federation Women's Sciences & Technology Associations) (2017.01.01-2017.12.31).

• a business director (International exchange) of KWMS (2017.01.-2017.12.31).

• a committee of KMO (vice-chair) of KMS (2015.01.01-2016.12.31).

• a business director (Education-KMO) of KMS (2015.01.01-2016.12.31).

• 교원양성위원회 위원, Chung-Ang University  (2015.02.01-2016.08.31).

• 학사연구위원회 위원, Chung-Ang University (2015.02.01-2016.08.31).

• a general affair director of KWMS (2013.06.-2014.12.31).

• a reviewer of Mathematics Reviews of the AMS since 2006.

• I am a member of

AMS (American Mathematical Society) since 1998.

AWM (Associated for Women in Mathematics since 1998.

KMS (Korean Mathematical Society) since 2006.

KWMS (Korean Women Mathematical Society) since 2005.

• Other Activities - Some Writing

- Alternating multiple zeta values and Zagier-Hoffman’s conjectures in positive characteristic,  KAIST Compass, Biannual Research Newsletter, College of Natural Sciences, College of Life Science & Bioengineering, Spring 2025.

- Book  Proofreading (감수) - 수학하는 여자들_세계의 여성 수학자 30인 (원제 : Power in Numbers: The Rebel Women of Mathematics), 2022.

- Article: 과학 선진국 진입 가능한가? 2022 세계 기초과학의 해 기념 기초과학 학회협의체 포럼 - 행사후기, KMS 소식지, 2022.12.

- Article: <산업수학 전략사업 및 센터 발전 방안 보고서>의 주요 내용을 정리하며 - 2021년도 대한수학회 봄 연구발표회 과학정책 프로그램 후기, KMS 소식지, 2021.7.

- Article:  Waring's problems and easier Waring's problem (한글) - Horizon (과학의 지평), 2019.7.

- Article: Who’s the Next 두 번째 이야기: 교육·연구 현장의 롤모델 27인과의 만남- 여과총 출판, 2011.10.