Hofer competed for Italy at the 2010 Winter Olympics in biathlon. Together with Karin Oberhofer, Dorothea Wierer and Dominik Windisch he won a bronze medal in the Mixed relay at the 2014 Winter Olympics, in Sochi, Russia. Then four years later at the 2018 Winter Olympics in Pyeongchang County, South Korea together with Lisa Vittozzi, Dorothea Wierer and Dominik Windisch, he once again won a bronze medal in the Mixed relay.