Carl is currently an advisor to Longview Philanthropy while traveling in Kenya as part of a family gap year. For more than a decade, Carl led grant making in nuclear security at the Carnegie Corporation of New York, a philanthropic fund which grants over $30 million annually to strengthen international peace and security. Carl previously worked with The Century Foundation and the Global Security Institute, where his research spanned arms control, international security policy, and nonproliferation. He is also cofounder of Interlude Artist Residency which supports a flourishing practice for visual artists who are actively parenting.