Executive Moves

James Mattis, former defense secretary and a two-time Wash100 winner, has been elected to the board of directors of General Dynamics (NYSE: GD).

Clement Chen, formerly chief strategy officer of the health group at Leidos (NYSE: LDOS), has taken a new role as vice president for its health and human services unit, the company announced on Wednesday.

Mark Heck, a more than two-decade business development and operations executive, has been named vice president of defense and intelligence business unit at Falls Church, Va.-based management consulting firm Suntiva.

John Hooley, a more than 18-year government services industry veteran, has joined The MIL Corp.'s federal business as vice president of financial services, G2Xchange ETC reported Tuesday.

Dan Kent, a 28-year information technology industry veteran, has joined augmented identity and biometric systems provider IDEMIA as senior vice president and chief technology officer for identity and security business in North America.

Thomas DeFrank, formerly chief financial officer and vice president of finance at L3 Technologies, has joined Ensco as CFO. He succeeds Mike Bogdanovic, who will serve as director of Ensco's retirement plan and special projects on a part-time basis, the company said Monday.

Information technology services contractor Sev1Tech has hired Andy Cohen, formerly vice president of business development and capture at Information Innovators Inc., to serve in a similar position, G2XChange ETC reported Monday.

Susan Lynch, who previously served as chief financial officer at Raytheon (NYSE: RTN) and Hitachi Data Systems, will formally assume the positions of senior vice president and CFO at Vectrus (NYSE: VEC) on Aug. 7. The 25-year finance veteran will oversee Vectrus' financial planning and analysis, tax, controllership and treasury functions, the company said Monday.

David Mihelcic, an 18-year Defense Information Systems Agency veteran and former federal chief technology and strategy officer at Juniper Networks (NYSE: JNPR) , has joined the advisory board of veteran-owned technology company Competitive Range Solutions.

President Donald Trump on Friday withdrew his plan to nominate Rep. John Ratcliffe (R-Texas) to serve as the next director of national intelligence after lawmakers raised questions over his qualifications, the New York Times reported Friday.