FAIRFAX, Va., Jan. 04, 2016 (GLOBE NEWSWIRE) -- ManTech International Corporation (Nasdaq:MANT) is pleased to announce the appointment of the Honorable Jose D. Riojas to the ManTech Mission Solutions and Services Group Strategic Advisory Board.

Nominated by President Obama and confirmed by the U.S. Senate, Riojas served as assistant secretary for operations, security, and preparedness at the Department of Veterans Affairs (VA) from May 2009 to July 2013. In July 2013, he transitioned to become chief of staff at the VA, where he managed day-to-day operations and strategic planning until departing in May 2015.

Prior to his VA service, Riojas was vice president for strategic initiatives at the University of Texas at El Paso (UTEP), where he was responsible for developing strategic initiatives in support of homeland security and immigration, homeland defense, and economic development. While at UTEP, he also served as the executive director of the Department of Homeland Security's National Center for Border Security and Immigration, as well as the executive director for the Center for Defense Systems Research. Riojas also completed a distinguished 30-year military career in the U.S. Army, culminating as a brigadier general.

"We are pleased to welcome Jose to our ManTech team. He provides unique insight and contributions that complement our strategic planning and execution in the two core mission-focus areas of DoD and Veterans Affairs healthcare IT and the federal civilian Department of Homeland Security," said Dan Keefe, president and chief operating officer, ManTech Mission Solutions and Services Group.

About ManTech International Corporation

ManTech is a leading provider of innovative technologies and solutions for mission-critical national security programs for the Intelligence Community; the Departments of Defense, State, Homeland Security, Energy, Veterans Affairs, and Justice, including the Federal Bureau of Investigation; the health and space communities; and other U.S. federal government customers. We provide support to critical national security programs for approximately 50 federal agencies through approximately 1,000 current contracts. ManTech's expertise includes cyber security; command, control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR) solutions and services; information technology (IT) modernization and sustainment; intelligence/counter-intelligence solutions and support; systems engineering; healthcare analytics and IT; global logistics support; test and evaluation; and environmental, range, and sustainability services. ManTech supports major national missions, such as military readiness and wellness, terrorist threat detection, information security and border protection. Additional information on ManTech can be found at www.mantech.com.

ManTech International CorporationLynn Davis, 703-259-3636lynn.davis@mantech.com

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