[4] From 2002 to 2007, Kawar served under the title of Ambassador extraordinary and plenipotentiary of the Hashemite Kingdom of Jordan to the United States of America and the Republic of Mexico.

Kawar served as a member of several Consultative Council task forces on Investment, eGovernment, Public Sector Reform, and computer and English education.

[11] Kawar also served as the Network Coordinator of the United Nations Information and Communication Technologies Task Force - Arab Regional Network.Kawar and his wife Luma, formed Bridges of Understanding Foundation,[12][13] a nonpolitical nonprofit organization with the stated aim of supporting projects and initiatives that foster better understanding between the people of the US and the people of the Arab and Muslim world,[14] starting with women of the U.S and Jordan.

His brother Rudain is the CEO.Kawar also is the Chairman of IrisGuard, Inc., which specializes in the deployment of iris recognition systems for border and homeland security.

[18] He is a principal shareholder and advisor to Optimiza Solutions, a provider of management consulting, technology enablement and outsourcing services in the Middle East.