Internationally he played for the Swiss national team at multiple tournaments, including several World Championships and the 2002 Winter Olympics.

A product of SC Langnau,[1] von Arx played in Switzerland's second division before signing with HC Davos of the top-flight National League A (NLA) in 1995.

He played all his 1004 NLA games with HC Davos and won six Swiss championships with the club[2] as well as two Spengler Cup titles (2006, 2011).

Internationally, he competed for Switzerland in the 2002 Olympic Games in Salt Lake City and at four World Championships.

Von Arx remained in that job until July 2016 and then joined the coaching staff of the Swiss under-17 national team.