Zoé Mussak studied law at the University of St. Gallen (HSG). Alongside her studies, she worked in retail and gained work experience through short term internships in the judiciary and law firms. After graduating, she completed an internship at a district court, where she worked as an auditor and extraordinary court clerk, as well as at a public prosecutor's office. She is currently completing her third year of clerkship and preparing for the bar exam.

Zoé Mussak speaks German and English.