Jason has held roles with leading galleries, including serving as Director at Blum, Tokyo, where he oversaw sales across Asia, and as Sales Representative at Neugerriemschneider for the Korea and Japan region. From 2018 to 2023, he ran his own gallery in Seoul, presenting emerging artists and managing secondary market sales, before establishing his independent advisory practice. He guides collectors through acquisitions, private sales, appraisals, collection management, and auction strategies, emphasizing the long-term value of collecting over fleeting trends and cultivating meaningful relationships within the art community to build collections thoughtfully and strategically.