Before joining Stanford Law School, Cuéllar worked at the U.S. Department of the Treasury, and clerked for the Honorable Mary M. Schroeder, Chief Judge of the U.S. Court of Appeals for the Ninth Circuit.
Before joining Stanford Law School, Cuéllar worked at the U.S. Department of the Treasury, where he focused on anti-corruption initiatives, border coordination, and financial crime enforcement. He clerked for the Honorable Chief Judge Mary M. Schroeder of the U.S. Court of Appeals for the Ninth Circuit.