He is on the books of Senglea Athletic and wears shirt number 1. His main role on the pitch is Goalkeeper. His estimated market valuation currently stands at 50K €.

His latest transfer saw him join Zabbar St. Patrick FC from Senglea Athletic via on 2025-08-12.

In the Malta Premier League 2025-2026, Jonathan Grech played 3 matches, averaging 0 interceptions, 0 tackles, and 0 clearances per game.