Born in 1964, Jean Pierre Neff spent his childhood in Rossinière. After training as a carpenter, he worked as a cabinetmaker and carpenter in various companies. In 1989 he created his own carpentry company, specialized in the restoration of the old chalets of Rossinière, following in the footsteps of his great- grandfather, also a carpenter. In 1998 he became a member of the municipality of Rossinière (forestry - domains - buildings - urbanism). From 2001 to 2021, he participated in the creation and presidency of the Groupement Forestier du Pays-d’Enhaut GFPE. In 2011, he was elected Mayor of Rossinière. He has just been re-elected Mayor for the 2021–2026 legislature.