John serves as strategic advisor and investor leveraging cross-sector experience in government, philanthropy, and the private sector to drive solutions in AI, technology, climate technology, and behavioral health. He currently serves as a fellow at the Chan Zuckerberg Initiative and a Non-Resident Senior Fellow at the American Enterprise Institute. He has supported a range of investors and philanthropies with designing their strategies, launching initiatives, and developing policy agendas.

As a domestic policy advisor in the White House, John coordinated the Bush Administration's efforts during the credit crisis to stabilize $200 billion in student loans and served as a negotiator for the reauthorization of the Trade Adjustment Assistance program. As Deputy Policy Director to the U.S. Secretary of Commerce, he contributed to the development of the first National Pandemic Strategy and the President's immigration reform package. As the nation's second Director of Educational Technology at the U.S. Department of Education, John co-chaired the interagency Advanced Education Technology Initiative, which emphasized the research and development of cutting-edge technologies in education and training.

While working for Pennsylvania Governor Tom Ridge, John spearheaded several technology and education initiatives, including a statewide broadband mapping project. John co-founded Whiteboard Advisors, a strategic advisory firm, and was a senior program officer at the Bill and Melinda Gates Foundation.

John is a fellow and moderator in the Aspen Global Leadership Network and an alumnus of the American Council on Germany Young Leaders Program. In 2024, the Washingtonian named him as one of Washington's Most Influential People in AI and tech policy. He currently serves on the board of directors for Zearn Math, U.S. Digital Response, and the Federation of American Scientists.