Jill Hellstern completed her studies in law at the University of Bern. During her master's program, she worked as a paralegal at Bratschi Ltd. under Dr. Lukas Wyss and Prof. Dr. Jürgen Brönnimann. As part of an exchange semester at the University of Wyoming, she gained international experience. Additionally, she completed an internship at the Regional Court of Bernese Jura-Seeland before returning as a junior associate to Bratschi Ltd.