During his career, Ilievski played for Nemetali Ogražden,[1] KK Partizan, Antbirlik Antalya, FC Barcelona Bàsquet, Lottomatica Roma, VidiVici Bologna, Montepaschi Siena, Tau Cerámica, KK Union Olimpija, Anadolu Efes and Lokomotiv Kuban.

On 28 September 2012 Ilievski signed a one-year contract with Croatian team Cedevita Zagreb.

[2][3] On 12 November 2013 Ilievski signed a contract with club ČEZ Nymburk from Czech Republic.

[5] On 10 July 2015, he signed with Italian club Orlandina Basket.

He is a younger brother of Dimče Gaštarski who was also basketball player.