Tech Moves: Syntonic appoints AT&T, Sprint exec as chairman; former AWS engineering director leading new Russian cloud service by Clare McGrane on July 6, 2017July 6, 2017 at 1:23 pm Syntonic, a Seattle-based mobile services startup, announced a new chairman of the board Thursday: former AT&T and Sprint executive Steve Elfman. Elfman has a storied career in the mobile world, including… Read More