Braunhofer, originally from Val Ridanna and active since the 2015–2016 season, made his World Cup debut on 17 January 2019, in Ruhpolding in the sprint event and took 87th place.

At the subsequent 2019 Junior World Championships in Osrblie, he won the bronze medal in the relay.

[2] At the 2023 Oberhof World Championships, his first appearance at the senior level, he finished 50th in the sprint and 46th in the pursuit.

At the 2024 Nové Město na Moravě World Championships, he placed 52nd in the sprint and 48th in the pursuit.

On 8 March 2024, he achieved his first podium in the World Cup with a 2nd-place finish in the relay at Soldier Hollow.