Career
Plum started his career playing at youth level for Osijek. Foreign his performances in the 2008-2009 youth season (Kadeti), he was declared player of the year by Sportske novosti. He made his debut for the first team in the 2009-2010 Prva HNL season against Croatia Sesvete on 20 March 2010, when he replaced Petar Stojkić for the final fifteen minutes of the match.
Next season he also got the chance as a substitute, this time in a 3–0 away defeat against Cibalia.
Immediately after the transfer, Plum was loaned to Treća HNL side Radnik Sesvete and helped them reach promotion to Druga HNL. He was resent to Radnik Sesvete for the first part of the 2011/2012 season, but failed to leave a mark, which lead to his contract being annulled. After a year at HNK Gorica at the same level, he returned to his lower-tier hometown club HNK Vukovar "91.
