Her professional practice focuses on litigation and dispute resolution, with experience in civil, administrative, and constitutional court proceedings, as well as extrajudicial procedures. She actively participates in developing litigation strategies and settlements for complex cases with significant national and international impact. She has also coordinated with public entities such as OEFA, OSINERGMIN, SERNANP, and DICAPI to address legal contingencies related to business operations.

Marjorit has served as a teaching assistant for courses such as Civil Liability, Legal Argumentation, and Corporations at the Law School of Pontificia Universidad Católica del Perú. She has also been a member of Ius Inter Gentes and Themis law journals, organizations specializing in civil and international law, where she led teams, organized events, and contributed to the dissemination of legal articles.