He began his career in the Zemun-based team Zemun Lasta where he played the whole 2009–10 season.

[8] On 4 March 2017, he left Mega and signed with Spanish club Real Betis Energía Plus for the rest of the 2016–17 ACB season.

[10] On 12 December 2017, he left Antwerp and signed with Polish club AZS Koszalin.

[11] On 25 August 2019, he has signed with Löwen Braunschweig of the Basketball Bundesliga (BBL).

[14] On 16 August 2023, Marelja signed with CBet Jonava of the Lithuanian Basketball League (LKL).