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About Thea

Since 2008, Ms. Philliou has been supporting the Securing the Cities Program of the Domestic Nuclear Detection Office of the U.S. Department of Homeland Security, where she focuses on building sustainable rad/nuc detection capabilities for state and local agencies. She has designed and implemented mobility platforms with integrated GIS capabilities for rad/nuc operational programs. Prior to supporting DNDO, Ms. Philliou worked for Counter Terrorism Operations Support (CTOS) as a scientist, developing and writing preventative rad/nuc training materials.  She began using GIS for rad/nuc detection in 2001, while working for Thermo Fisher Scientific as a product manager and applications scientist. She led efforts to integrate real-time data from sensors into ArcGIS for civilian and military first responders.

Ms. Philliou graduated from Brown University with Bachelors of Arts degree and a Master’s of Arts from St. John’s College.  She taught college math and science before joining the radiation/nuclear detection industry.