A graduate in architecture, Camille Sifferlen worked for 6 years at the Passive House Institute. There, she conducted training and quality assurance activities internationally, with a particular interest in high performance pilot projects in hot climates and emerging economies. Upon her return to France in 2021, she opened her training and consulting company Passiv'Optim and joined the board of directors of La Maison du Passif. She is a certified Passive House Designer and PHPP Expert.