Portada Team

Marcos Baer


Prior to launching Portada in 2003, Marcos worked in both the media and finance sectors. He occupied executive roles at the Spanish edition of The Wall Street Journal, in Spain’s newspaper Cinco Dias and at SwissRe. He is an MBA, and a CFA. Marcos is passionate about everything related to New York City as well as architectural and graphic design history. He also loves to play tennis.

Celeste Martorana

Brand Relationship Manager

Celeste is responsible for the relationship with brand marketers in Portada’s Council System. She joined Portada’s team in 2013. Since then, she has been working as an editor for Portada’s English-language website and compiling information for Portada’s Databases. She moved to Buenos Aires to study Scientific, Technical and Literary Translation in English. She is currently living in the Belgrano neighborhood. Celeste is very outgoing and sociable. She enjoys travelling abroad, especially if she has the opportunity to meet new people and put her English skills into practice.

Alex de Carvalho, 

Correspondent Miami

A leader, innovator, and entrepreneur who spearheaded and developed the Miami startup community into the vibrant, world-class environment it has become. Alex is skilled in management consulting, startup execution and growth, and digital marketing. He currently serves as the Honorary Consul of Finland in South Florida. Alex holds an MBA from INSEAD and is fluent in English, Spanish, French, Portuguese and Finnish.

Irma Photo


Director Latin America/ Client Services

Irma has more than 25 years of experience in the publishing industry, including commercial, editorial, public relations, digital marketing, and project management. At Portada, she manages sales for Latin American clients and client services. Irma studied Business Administration and International Marketing. In addition to Portada, she is also the General Director of the publishing house Proyecto M2050, a company dedicated to documenting and articulating stories of empowerment, leadership, and social change. She is also the Director of the National Chamber of the Mexican Publishing Industry (CANIEM). Irma is passionate about all projects of a social nature, with a focus on gender equality and social empowerment.

Ximena Cassab Dietiker

Editor and Writer

Ximena is a Swiss-Mexican journalist based in Mexico City where she specialized in business, and travel topics. Graduated from the National Autonomous University of Mexico (UNAM), she has worked as an editor at the magazines Expansión , Aire and Accent, from Expansion Group. Currently she is working with different media in Spanish and English independently. She is a passionate traveler who does not miss the opportunity to see a new place in the world.

Job Mojica


Job plays a crucial role in the growth of Portada’s website architecture. He has a unique knowledge of both programming and design. With over 12 years of experience in visual communication. He has worked with diverse types of clients, fulfilling their design needs from logos and brand design all the way to comprehensive marketing campaigns. He adds a minimalist and elegant style to each design, and he spends his free time watching cult films and listening to podcasts.

Abigail Arzac

Graphic Design

Abigail studied visual communication & design. Her love for branding and packaging design is a huge asset for the Portada brand. Abigail’s experience includes retail store product production. She enjoys working at home with her two cats and loves to pay special attention to small details in design. A beachlover, she likes traveling to places where she can enjoy nature. Another one of her hobbies is to film make videos about her travels with her husband.

USA: 136 Madison Avenue, 5th Floor, New York, NY 10016 | MX: Varsovia 36, 12th Floor, CDMX, 06600