C.J. Mahoney has served as Meta's Chief Legal Officer since 2026. He previously held senior legal roles at Microsoft Corporation, most recently as Corporate Vice President and General Counsel for Product, Services, and Go-to-Market Legal, and served as Deputy United States Trade Representative from 2018 to 2020. Earlier he was a partner at Williams & Connolly and clerked for Justice Anthony Kennedy of the U.S. Supreme Court.