2023.01 - 2023.12: President, Korean Institute of Information Scientists & Engineers (한국정보과학회 회장)
2023.01 - present: Member, National Academy of Engineering of Korea (NAEK) (한국공학한림원 정회원)
2022.01 - present: Fellow, The Korean Academy of Science and Technology (KAST) (한국과학기술한림원 정회원)
2021.01 - 2021.12: Vice President of General Affairs, Korean Institute of Information Scientists & Engineers (한국정보과학회 총무부회장)
2020.01 - 2022.12: Associate Member, National Academy of Engineering of Korea (NAEK) (한국공학한림원 회원)
2025.09 - present: Fellow, Asia-Pacific Artificial Intelligence Association (AAIA)
2020.11 - present: Editor, Elsevier High-Confidence Computing Journal (HCC)
2025.02 - present: Editor, IEEE/KICS Journal of Communications and Networks (JCN) for Division II: Wireless Communications
2019.01 - 2025.01: Division Editor, IEEE/KICS Journal of Communications and Networks (JCN) for Division II: Wireless Communications (term: December 2021)
2018.06 - present: Committee Member, Next Generation IoT Preliminary Feasibility Study and Planning Committee, Ministry of Science and ICT (MSIP)
2018.01 - present: Expert Committee Member, Institue of Information & Communications Technology Planning & Evaluation (IITP)
2017.03 - 2018.02: Vice President, The Korean Institute of Information Scientists & Engineers (KIISE) (한국정보과학회 부회장 – 학술담당)
2017.05 - 2017.08: Committee Member, Yangjae-Woomyon ICT R&CD Planning Committee, Ministry of Science and ICT (MSIP)
2017.03 - 2017.07: Committee Member, ICT R&D Long-term Strategy Planning Committee, Ministry of Science, ICT and Future Planning (MSIP)
2013.02 - 2014.02: Planning & Consulting Committee Member, National Research Foundation (NRF)
2013.01 - present: Associate Editor, Journal of KIISE (한국정보과학회 논문지 부 편집위원장 – 정보통신분야)
2010.08 - 2011.02: Consulting Committee Member, Ministry of Public Administration and Security (MOPAS), Korea Governmen
2008.01 - present: Board of Director Member, KIPS (한국정보처리학회 이사)
2007.02 - 2007.12: R&D Budget Coordination Committee Member, Ministry of Science and Technology (MOST), Korea Goverment (국가과학기술위원회 국가R&D예산조정위윈회 전문위원)
2006.01 - 2020.12: IEEE Senior Member
2005.02 - 2007.2: Legislative Counseling Member (Information and Communication Committee), Korea National Assembly (국회 입법지원 위원 - 정보통신분과 위원회)
2005.03 - 2008.12: Board of Director Member, OSIA (개방형 컴퓨팅통신연구회 이사)