Wayne Lucernoni, current vice president and general manager for intelligence, civilian and health care programs will become acting president of Harris IT.
Hengst will replace Roy Carter, current Artel CEO.
Henry Debnam, deputy CIO, has been named acting CIO.
Hengst will spend his last day at Harris on Friday after joining the company in 2006.
He also served as senior vice president at General Dynamics after retiring from the Army as a colonel. He graduated from West Point and the Naval Post Graduate School.
Founded in 1986 by Abbas Yazdani, Artel provides IT and telecommunications services in managed network services, information assurance, solutions integration and network operations for various customers, including the Army, Air Force, State
Department and FEMA.
It earned over $400 million in revenue in 2011, when Torch Hill Investment Partners and TPG Growth acquired the company.
Washington Technology hailed the transaction an honorable mention for best private equity deals in its annual mergers and acquisitions special report.