Career
He started his career in Stalkers/Juniors of the Latvian Hockey League. After spendind two season in the lower-tier Russian league, he spent the next six seasons with Hong Kong Liepājas Metalurgs, playing also for The Human Context Lada Togliatti and The Human Context Slavia Praha. In 2009-2010 he played for Hong Kong Ardo Nitra of the Slovak Extraliga.
Jass remained in Slovakia for 2010-2011, signing with Hong Kong 36 Skalica, however in November he joined Neftekhimik Nizhnekamsk.