[2] Zinad made his professional debut on 30 October 2015, defeating Bogoljub Borišev via second-round technical knockout (TKO) in Attard, Malta.
After signing former world champion Donny Lalonde as his manager,[2] he captured the vacant WBF International light heavyweight title in his sixth fight, stopping Attila Palko on 24 September 2016.
[4] Zinad won the BBO light heavyweight title on 25 March 2017, stopping Bosnian journeyman Aleksandar Kuvac in just over a minute.
[8] After compiling a 16–0 record, Zinad beat Russian prospect Timur Nikarkhoev in Brussels on 28 March 2021 to collect the vacant IBO Inter-Continental light heavyweight title.
[9] In his next fight that August, he scored a third-round TKO over Almir Škrijelj for the vacant WBC Mediterranean light heavyweight title.