Lynn Dugle speaking at the Space Symposium in 2013. Credit: Space Foundation

WASHINGTON — Engility Holdings, a Chantilly, Virginia-based contractor that counts the U.S. National Reconnaissance Office among its key customers, appointed former Raytheon exec Lynn Dugle to take over as chief executive March 21.

Dugle, who retired as president of Raytheon’s Intelligence, Information and Services business last March, replaces Anthony Smeraglinolo, who has stepped down. No reason was given for Smeraglinolo’s departure.

John Hynes, Engility’s executive vice president and chief operating officer, was promoted to president and chief operating officer at the end of February.

Hynes was chief executive  of TASC, a Chantilly-based contractor that Engility acquired in 2014 for $1.1 billion in stock.

Brian Berger is editor in chief of and the SpaceNews magazine. He joined in 1998, spending his first decade with the publication covering NASA. His reporting on the 2003 Space Shuttle Columbia accident was...