Jeffrey was based in the firm's Pittsburgh office before moving to Tokyo. Prior to joining the firm, he served as a law clerk to the Honorable Rebecca Goodgame Ebinger of the United States District Court for the Southern District of Iowa.
During law school, Jeffrey was appointed academic director of the Moot Court Board and contributing editor of the Iowa Law Review. He was also a member of the National Moot Court Team, representing the law school at the competition's final round in New York.
While pursuing his undergraduate degree, Jeffrey participated in a one-year exchange program at Meiji University in Tokyo, where he focused on Japanese history and language studies.