Randall Lee, who spent the past decade building out Wilmer Cutler Pickering Hale and Dorr’s Los Angeles office, has decamped the East Coast-based firm to join Cooley as a partner in Los Angeles.

Lee joined WilmerHale in 2007 to help the firm establish its office in Los Angeles, but he stepped down as the partner-in-charge of that office last year. Litigation partner David Marcus succeeded him in the leadership role.