Juan Arteaga, a former associate and counsel at Simpson Thacher & Bartlett who most recently served as a deputy assistant attorney general for civil enforcement at the U.S. Department of Justice in Washington, D.C., has joined Crowell & Moring as an antitrust partner in New York.

“Whether it’s a merger, litigation, criminal prosecution or competition policy issue, Crowell regularly serves as the go-to antitrust counsel for U.S. and foreign clients,” Arteaga said. “So I viewed Crowell as providing me a great platform as I transition from government service back to private practice.”