Piermayr started his career in 2008 with
LASK Linz, for whom he played 78 games as a defender. He then signed for a one-year deal with Inverness in July 2011, after impressing manager
Terry Butcher during the preseason. He left Inverness at the end of the season and signed for Wiener Neustadt. On 9 July 2013 he signed a contract with
Lillestrøm out the season. He has also represented the
Austria national under-21 football team. ==Career statistics==