Amalul transferred to the Royal Brunei Armed Forces Sports Council in the 2007-08 season.[5] The Armymen finished runners-up to QAF FC in the league in his first season there, but won the FA Cup instead.[6] On 17 April 2010, Amalul opened the scoring against eventual league winners QAF at the 2010 DST FA Cup final which MS ABDB won 2–1, the winner scored by Rosmin Kamis.[7]
Amalul's impressive league form led to an invite to train with royalty-owned Brunei DPMM FC in preparation for the 2012 S.League, where elder brother Shahrazen was currently playing.[8] He signed full terms in February 2012, on the same day as his younger brother Adi.[9]
Although Adi progressed well at DPMM, it was the reverse for Amalul who endured a tough spell at the club, primarily unable to displace Subhi Bakir at his preferred right-back role. His first (and only) appearance in 2012 was as a late substitute against Gombak United on 31 August which finished 1–1.[10] He went through 2013 without playing a single game, but managed to register four appearances in the first half of the 2014 S.League under new head coach Steve Kean. He made the first eleven in the 6–1 win against Young Lions on 6 April, which would ultimately be his only start for DPMM.[11] Another season without any appearances followed, and Amalul was released in early 2016 after failing S.League's mandatory fitness test.[12]
Amalul joined Kota Ranger FC later that year.[13] He scored a hattrick in the league fixture against Najip-BAKES on 9 December 2018.[14] In the final of the 2018–19 Brunei FA Cup, Amalul scored the first goal of the game in the 36th minute, repeating his feat nine years earlier. Kota Ranger won 2–1 at the end, bringing Amalul his fourth FA Cup medal.[15]
Amalul has eight brothers who are all footballers. Notable ones are Shah Razen the eldest, Adi and Hakeme Yazid the youngest, all of them are playing or have played for Amalul's former team DPMM FC.[20]