Stéphanie Kuonen was born in 1986. She studied law at the University of Fribourg, where is obtained her law degree in 2011.

She was admitted to the Bar in 2014. From 2015 to 2018, she worked as a legal counsel for the Canton of Fribourg in the land and construction department, in the construction and spatial planning.

In 2019, she worked for one year as an associate in a legal firm where she specialized in the area of civil and criminal litigation.

In 2020, she joined 100 Rhône Avocats as an associate. Her areas of expertise are territory development, construction law and sports laws.

She works in French, German and English.