Justin Michael Rosenstein is an American software programmer and entrepreneur. He co-founded the collaboration software company Asana in 2008. Rosenstein was also the technical lead in charge of Facebook's Pages, the Facebook Like button, and Facebook Beacon. (오뜨랑에서 실시간으로 번역된 한글 프로필도 확인할 수 있어요) 2020년 소셜 딜레마에 출연했다.