He is President and CEO of Guerra Castellanos y Asociados, a leading company in Strategic Communication and Public Relations, founded in 2001.
In 2016, Guerra Castellanos y Asociados opened its offices in Dallas, Texas offering service to clients in the United States.
He has extensive experience in international affairs, having lived and studied in Israel and the former German Democratic Republic, where his parents were representatives of Mexico. She speaks Spanish, English and German, she has basic knowledge of French and Russian.
In the public sector, Guerra Castellanos was a Cultural Attaché at the Mexican Embassy in the former Soviet Union; Press Attaché at the Embassy of Mexico in Germany and Consul General of Mexico in Toronto. He was also Director of International Information of the Presidency of the Republic.
He currently publishes a weekly column in the El Universal newspaper.
He participates in various analysis and news programs on the main national radio and television networks; he is often quoted by international media.
He frequently gives lectures and talks on international affairs, the media, economics, and politics for various audiences in Mexico, Canada, and the United States of America.