Col. Brian C. North, USA, has been assigned as brigade commander, 11th Theater Tactical Signal Brigade, Fort Hood, Texas.
Vice Adm. Michael M. Gilday, USN, has been appointed to the grade of admiral and assigned as chief of naval operations, Washington, D.C.
Mark T. Esper has been sworn in to serve as secretary of defense.
Intelsat, S.A., McLean, Virginia, has appointed David M. Tolley as executive vice president and chief financial officer.
By Light Professional IT Services LLC, Arlington, Virginia, has named John Wilcox as vice president of strategic initiatives.
Stella Medlicott has been appointed senior vice president and head of group function marketing and corporate relations at Ericsson, Stockholm.
Centauri, Chantilly, Virginia, has appointed Dennis Kelly Jr. as chief operating officer and president.
Nadia Carlsten has joined Amazon as head of strategy and operations.
LoanCare, Virginia Beach, Virginia, has appointed Michael Blair as chief administrative officer.
Brig. Gen. Jeffrey H. Hurlbert, USAF, has been assigned as deputy inspector general of the Air Force, Office of the Secretary of the Air Force, Pentagon, Washington, D.C.
Command Sgt. Maj. Michael A. Grinston, USA, has been assigned as the 16th sergeant major of the Army (SMA).
Capt. James P. Borghardt, USN, has been sworn in as commanding officer for Office of Naval Research (ONR) Global, London.
Barbara Barrett has been nominated as the next U.S. Air Force secretary.
Sandia National Laboratories, Albuquerque, New Mexico, has named D.E. "Dori" Ellis as deputy director.