He began studying coffee in 2012, hoping to serve in Africa. In 2014 he started teaching at Coffee MBA Academy, later leading its team; in 2015 he opened and ran Cafe Praise, and he served as education director of Korea Coffee Startup Academy and K-Coffee Academy. In 2018 he visited the Coffee Research Institute in Kenya to learn at origin. He served as a barista practical examiner for the Korea Coffee Association. Committed to education for underserved groups, he has taught baristas at the Rainbow Youth Center (Foundation for Migrant Youth, Ministry of Gender Equality and Family), the vocational centre of the Korea Autism Society, and Seoul Samsung School for the deaf. He has also taught for the Gyeonggi Office of Education, the Gwangju Agricultural Technology Center (4-H), the Seoul Office of Education career centre, companies, more than 20 middle and high schools in Seoul and Gyeonggi, and the Korean International School in Hanoi.
From 2019, as an external cooperation member for coffee at Korea Food for the Hungry International, he visited Vietnam as lead instructor of Samsung Hope School in Bac Ninh and helped it become a KCA-accredited Coffee Instructor training centre; since 2022, after COVID-19, he has returned every year to teach GACP certificate courses and career talks there. This led him to Hanoi in February 2022 as head of the KCA Vietnam branch (Vietnam Regional Director since 2025), where he opened K-COFFEE COLLEGE Hanoi and has offered KCA barista certificate courses and exams to the Korean community. Since 2023 he has taught barista skills to the Kkumnarae class at the Korean International School in Hanoi and helped the school become a KCA practical exam centre, so students can certify at school.
In 2025 he held the International Golden Coffee Award Vietnam in Hanoi, and he works as a bridge between the Korean and Vietnamese coffee industries. In August 2026 he brokered agreements between KCA and the Vietnam Coffee-Cocoa Association (VICOFA), the Buon Ma Thuot Coffee Association (BMTCA) and Simexco Daklak; in October, between the Coffee Roasters Association of Korea (CRAK), BMTCA and Simexco Daklak. CRAK and VICOFA have also agreed to cooperate and plan to sign at the 2nd IGCA Vietnam in Hanoi in December.
In 2026 Friends Coffee Roasters (BEMYFRIEND Co., Ltd.), which he leads, won Gold in Natural & Honey (CLASSIC, café division) at the 2026 Golden Coffee Award. In October the same year, at IGCA China 2026 in Qingdao, it won Silver in Single Natural and placed as a finalist in Anaerobic and House Blend.