About Us


As a young boy, our founder and CEO Carlos A. Roncal discovered he had a talent for learning languages. He would happily learn and sing many songs in English and French without knowing what he was saying.  His parents enrolled him in a bilingual private school in his native Bolivia where he learned English.  During his High School and College years in St. Louis Missouri, Carlos took French language classes for 8 years and consistently earned high grades. He now fluently speaks Spanish, English, Portuguese, French and is studying the German language.

Continuing with Graduate School at Thunderbird School of Global Management he studied the Portuguese Language and again earned high marks. His major field of study included global management with a concentration in international finance.

Carlos is a certified language teacher in the State of Texas and Missouri. He has taught languages at various elementary, middle and high schools in Missouri, and Texas.  He was the language teacher at Malakoff High School, The Dallas Independent School District and Frisco ISD.

From 2004 to 2010 Carlos served as Professor of Global Strategies at the University of Phoenix,  online campus. He taught the global MBA classes for adult students all over the world.  Many of his students were living in Belgium, Canada, Afghanistan, Africa, South Korea, the United States and Canada.

Professor Roncal developed and assigned global projects to experienced adult  students working on their MBA’s. These students included the Assistant Commanding Officer for the Canadian Forces in Afghanistan. The Head US Navy Nurse in Belgium who finished her MBA and was assigned to Iraq, a Walmart store manager in Indiana who was promoted after finishing her MBA degree.


As a working professional Carlos has worked and lived in Canada, Brazil, Mexico, Bolivia, Colombia and the United States where he currently lives. During his years as an international consultant, and subject matter expert in ERP, and financial software systems he worked for large companies such as Kimberly Clark, ITT, General Mills, Fourth Shift Manufacturing Software, Solectron, an IBM subsidiary, Scala Software, and an  Arthur Anderson Consulting spinoff   company. He was instrumental in training and helping over 30 companies in varied industries such as medical, manufacturing, food, electronics, software, aviation, construction and the hospitality industry.

During his business travels he worked in almost all the countries in North, Central and South America. He also conducted business in Finland, Hong Kong, Taiwan, Japan and China.

These travels and experiences have given Mr. Roncal his passion and the credentials to teach languages. Carlos speaks fluent Spanish, Portuguese, English and 90% French. Prof. Roncal is currently the Founder and CEO of World Language Schools with head offices in Frisco, Texas

Please contact Prof. Roncal at carlos@world-languageschools.com