Riyan Portuguez is a graduate of Polytechnic University of the Philippines. She has a Master's degree in Psychology in the same institution. She is a registered psychologist, psychometrician, freelance national lecturer, and psychology blogger/vlogger. She is known as Your Millennial Psychologist.

She is a lecturer at the Graduate School of Polytechnic University of the Philippines and a consultant psychologist at Childfam-Possibilities Psychosocial Services Co. She is an active member of the Pambansang Samahan sa Sikolohiyang Pilipino and the Psychological Association of the Philippine's LGBT Psychology Special Interest Group and currently the co-chairperson of the said special interest group that promotes the rights, well-being, and gender equality. She is also one of the core members of #MentalHealthPH, a nonprofit organization that promotes mental health and well-being using social media platforms and adviser of Mindnation, a telemental health company.

Furthermore, she was featured in TV documentaries, news, promotional videos, and radio programs related to her advocacies.  Riyan describes herself as staunch mental health and LGBTQ+ advocate.