In January 2023, Mamut moved to Malaysia to signed a one-year contract for Malaysia Super League club, Terengganu FC. On 4 August 2023, Mamut scored his first senior hat-trick of his career in the 2023 Malaysia Cup Round of 16 first leg fixtures against Kuala Lumpur Rovers. On 14 August 2023, he bagged himself his second hat-trick of the season in an 8–0 victory in the East Coast Derby against rivals Kelantan.On 20 September 2023, Mamut made his AFC Cup debut, starting in a 1–0 win over Central Coast Mariners.
On 28 December 2023, Mamut officially signed an extended contract to stay with club Terengganu FC for next season's competition 2024–25.[3]