Stanford U. seeks engineering dean as Persis Drell, the first woman in the role, rises to provost.

LaMont Wells, former president and chairman of federal defense and intelligence consultant Technology Management Associates, joined AECOM’s management services group as executive vice president in Germantown, Md.

U.K.-based design firm Atkins names industry veteran George Nash to run its North America unit, replacing exec who resigned; U. of California-Berkeley academic taught and researched for multiple decades.

Former top engineer has joined Intrexon Corp., a publicly-traded bioremediation and biomedical technology firm.

Diana C. Mendes has joined design firm HNTB as senior vice president and leader of its national transit-rail practice, based in Arlington, Va.