His performances attracted attention from higher divisions, and in 2007 he made a switch to SK Schwadorf in the First League, the second tier of the Austrian pyramid.

He played his first game for the club on 27 July 2011; a 3–1 win over Yorkshire rivals Bradford City, Pusic scored the final goal of the match.

[9] On 30 August 2012, the same day he was released by Vålerenga, he signed a short-term contract until the end of the season with the Norwegian club Fredrikstad in hope that he could save them from relegation.

Although he stepped up the challenge and was hyped by the Norwegian media as Fredrikstad's potential saviour,[10] the club was relegated in the final match of the season, losing 2–0 at home against Molde.

He was signed as a striker to replace Brann's previous season's top scorer Kim Ojo, following his transfer to the Belgian club KRC Genk.

[13] Ultimately, Pušić scored 17 goals during the season and finished as the league overall top scorer, while Midtjylland won the championship for the first time in its history.

He was, however, deemed surplus to requirements during the following season and joined the Dutch Eredivisie club Sparta Rotterdam on a half year loan on 28 January 2017.

[19] On 12 April 2022, Pušić announced in an interview with the Danish media outlet Tipsbladet that he had retired from football, and was coaching an under-18 team near his home in Vienna.