In this Malay name, there is no surname or family name. The name Pengiran Mahmud is a patronymic, and the person should be referred to by their given name, Pengiran Aminan. The word "bin" or "binti"/"binte" means 'son of' or 'daughter of', respectively.
Pengiran Aminan enlisted with the Royal Brunei Armed Forces (RBAF) on 9 December 1985 and was assigned 286 as his service number.[3] Subsequently, upon completion of his initial officer training, he graduated from the Training Institute Royal Brunei Armed Forces at Penanjong Garrison as a second lieutenant on 20 December 1987. He then attended the Officer Cadet Course in Singapore. During his time in service, he was appointed to several positions; which include: infantry platoon commander, technical instructor at Training Institute (TI RBAF), SO2 G1 of Royal Brunei Service Force, SO2 and military assistant to Commander of the RBAF, and senior management officer at the Office of Strategy Management Ministry of Defence (MINDEF). From 2007 until 2009, he was the aide-de-camp to the Sultan of Brunei, and later in 2010, he became the director at Directorate of Strategic Planning. On 7 February 2014, Aminan began his duty as the acting Deputy Commander of Royal Brunei Land Force (RBLF). That same year on 1 December, he became the 9th commander of the RBLF.[2]
Aminan obtained a National Diploma Engineering, and Foundation Degree of Engineering in Mechanical Engineering in 1989 in the United Kingdom, Junior Officer Management Course in 1994, Unit Security Officers in 1994, and Combat Intelligence Officer in 1995 in Singapore, Bachelor of Engineering in 1997 in the United Kingdom, All Arms Tactics in 1999 in Malaysia, Command and Staff Course in 2000 in Singapore, Royal College of Defence Studies in 2010 in United Kingdom, and Leaders in Development in 2012 in United States.[2]
^"His Majesty Birthday Honours". BruneiResources.blogspot.com. The Daily Brunei Resources. 17 July 2012. Archived from the original on 5 May 2017. Retrieved 15 May 2024.