Berdoz was born and raised in Lausanne.[1][2]
While a student at the University of Neuchâtel, Berdoz wrote letters to Lausanne city officials requesting they consider hiring a woman for the Cathedral watchman.[1] A few years later, when the recruitment process began for a new watchman, Berdoz applied.[1][3] After two rounds of interviews and an audition, Berdoz was selected as watchman, becoming the first woman to ever hold the position.[1][4] She assumed the role on 19 August 2021.[5]
As Watchman of the Lausanne Cathedral, she is assigned to post three to five nights a month, keeping watch from the bell tower.[1][6] On the nights of her post, from 10:00 PM to 2:00 AM, Bersoz stands at each corner of the tower and calls out: “C’est la guette, il a sonné vingt-deux heures!”[1][7]
Berdoz also works in event management.[1] She is a project manager for a communications agency, helping organize the annuel Nuit des Musées.[1]