Dr. De-Juan-Vigaray is accredited as a Full Professor by ANECA in the field of Marketing and Market Research at the University of Alicante (UA), where she has been teaching since 1991. Since 2006, she has been a visiting professor at IESEG School of Management (France). She has collaborated as a lecturer at prestigious international institutions such as the University of Florida (USA), Southampton Institute (England), Miami Dade Community College, Miami (Florida, USA), Federico II University of Naples (Italy), Thessaloniki University (Greece), and in various specialized programs at UA (e-business, Marketing). She teaches in the Official Master's in Local Development and Territorial Innovation at UA, as well as in the Master’s in Marketing and the Master's Degree in Innovation and Tourism Marketing at the Catholic University of San Antonio (Murcia), and in various master's programs and business schools in Spain (ESADE, Barcelona; ESIC, Madrid; Universitat de les Illes Balears, Palma de Mallorca and Menorca; Fundesem, Alicante).

With three research periods (sexenios) recognized, she is the author of several books, including The Attraction of Shopping Centers to Consumers, Commercial Distribution: Marketing and Retailing, Sales Promotion: A Key Marketing Variable (2nd ed.), Marketing and Retailing: Applied Commercial Distribution, Consumer Values and Lifestyles: How to Understand and Measure Them, and Fundamentals of Marketing. She has contributed to several book chapters, such as European Cases in Retailing, and published articles on topics including tourism, consumer behavior, and retailing in high-impact journals like JAMS, International Journal of Retail & Distribution Management, Journal of Consumer Psychology, Tourism Analysis, Current Issues in Tourism, Journal of Retailing and Consumer Services, Journal of Tourism Management, Industrial Marketing Management, Revista Española de Investigación de Marketing, Technological Forecasting and Social Change, and Heliyon, among others.

Her research career began by studying the commercial appeal of establishments, delving into the purchasing behavior of foreign residential tourists. This research line is complemented by studies on consumer behavior in various segments (tourists, children, students). Her interest in the intersection of teaching and marketing has also led her to publish articles in journals such as the European Journal of Investigation in Health, Psychology and Education and the Revista de Investigación Educativa.

She has been honored with the First Prize for Teaching Excellence at UA as the best professor of the Faculty of Economics and Business in 2008/09 and the Innovative Teaching Prize 2022 from the Transform4Europe Programme, a project co-funded by the Erasmus+ program of the European Union, recognizing her efforts to promote cooperation among higher education institutions. Between 2003 and 2007, she served as Vice Dean of Business Internships at the same Faculty, under whose leadership the department achieved the first AENOR certification for curricular internships at a national level.

In 2017/18, she directed the Institutional Chair Aguas de Alicante for Social Inclusion at UA. Since 2006, she has coordinated the Idoi Research Network. She has extensive experience supervising undergraduate and master's theses across six programs, notable for the high quality of the projects supervised and the results obtained. The average grade for supervised undergraduate theses is outstanding (9/10), with a total of six awards of Honors. This trajectory spans programs such as the Master's in Business Administration, the bachelor's degrees in Tourism, Marketing, and Economics, and the double degrees in Tourism and Business Administration (TADE) and Law and Business Administration (DADE), reflecting a comprehensive approach and excellence in academic supervision.