Ari is the President of Tambourine, a philanthropy focused on global health, neurodegenerative disease, and emotional wellbeing, and on the leadership team of How We Feel (recently named a "Cultural Impact" app of the year by Apple). His leadership in philanthropy includes prior roles as Head of Philanthropy and Social Impact at Pinterest, where he founded the company's "Pinterest Purpose" work, as well as Vice President of Programs and Chief Strategy Officer of the Kresge Foundation, where he led the foundation's global grantmaking focused on expanding opportunity and equity in cities. He began his career in the nonprofit sector with stints at McKinsey's Social Sector Office, The Innocence Project, and NASA's Shuttle Columbia Accident Investigation, and he holds degrees from Harvard College, Oxford University, and Stanford Law School.