Karmijn specialises in competition law and one of her areas of expertise is healthcare mergers, particularly by private equity, and related matters. Karmijn litigates in both administrative law and civil law (cartel damages) cases. She liaises frequently with the Netherlands Authority for Consumers and Markets (ACM) and the European Commission.
In addition to her legal practice, Karmijn takes on the role of mentor for the Willem C. Vis Moot Court Team at the University of Amsterdam, guiding the next generation of legal minds