Neville Ray plans to retire as T-Mobile president-technology by fall; current Executive Vice President-Chief Network Officer Ulf Ewaldsson will assume the role after Ray departs ... Electric vehicle company Rivian Automotive names Stanford University’s Michael Callahan, also former LinkedIn general counsel, chief legal officer ... Security automation company Torq taps Splunk’s Josh Morris as senior vice president-worldwide sales and Pax8's Don Jeter as chief marketing officer ... USIC, provider of utility damage prevention services, names Lumen’s Richard Batelaan, also ex-AT&T, chief operating officer ... Smart access solutions company Chamberlain Group names Dan Phillips, ex-Hulu, chief technology officer ... NTIA promotes Russ Hanser to associate administrator-policy analysis and development, and hires DOD's Amanda Toman to head new Public Wireless Supply Chain Innovation Fund.