Our Team

Isa Felder

Isa Felder – Brazilian, graduated in Journalism from the Fluminense Federal University (UFF), has worked for over 20 years in various media outlets both in Brazil and Switzerland. Isa obtained the SVEB Diploma to work in the educational field, as well as a Translator’s Diploma from the Schule für Angewandte Linguistik – SAL. Since then, Isa has been working as a language teacher, translator, and proofreader for several institutions in Switzerland. In addition, she serves as the director of World Language School – WLS, as well as the company’s public relations representative. Isa also teaches beginner-level German at WLS.

Nelson Adao

Nelson Adao – Although born in Angola, Nelson spent his childhood in France. When he was eleven years old, he and his family moved to Switzerland. After completing his training as a "specialized retail salesperson", Nelson completed the course "Language Teaching for Adults" at the Schule für Angewandte Linguistik – SAL, obtaining the SVEB diploma. He currently works as a German and French teacher at several language schools in Switzerland, including the World Language School. He is also the vice-director and treasurer of WLS.

Simon Diethelm

Simon Diethelm – Swiss, holds the Cambridge Proficiency Diploma and the DALF C2 (Diplôme Approfondi de Langue Française). A professional with experience in various schools in Zurich (Zürcher Hochschulamt since 2018). He studied Intercultural Communication ICC at the PHZH Pedagogical Institute in Zurich. He gained teaching experience in the integrative and adaptive field as a crew member of the historic boat "Salomon," supported by the "Stiftung Jugendschiffe Schweiz." Simon is a member of the "Team Building" department at the collective events of "Kletterpark Gründenmoos" in St. Gallen. A teacher with a wide range of didactic and methodological experience. He speaks fluent German, English, French, Spanish, and the universal language of music. His favorite quote:

"Language is the roadmap of a culture. It tells you where its people come from and where they are going." – Rita Mae Brown