He is on the books of Biskra and wears shirt number 1. His main role on the pitch is Goalkeeper. His estimated market valuation currently stands at 300K €.

His latest transfer saw him join Biskra from USM Annaba via on 2023-08-23.

In the Algerian Ligue Professionnelle 1 2024-2025, O. Mellala played 13 matches, averaging 0 interceptions, 0 tackles, and 0 clearances per game.