Ahmed was commissioned in 32nd BMA Long Course on 16 June 1995.
Ahmed oversaw the arrest of the owner, Abu Bakar Siddique, of M.V. Pinak, a ferry that sank in the Padma River, killing 48, after the owner went into hiding.[4] Siddique had been charged with culpable homicide for overloading the ferry that lead to its sinking.[4]
Commanding officer of Rapid Action Battalion-7, Ahmed, led a raid on a farm in Chittagong and recovered significant amount of firearms and detained five in 2015.[5] His team raided a residence in Chittagong and detained four people with bombs February 2015.[6][7]
In 2017, Ahmed as commanding officer of Rapid Action Battalion-7 led a crackdown on Shaheed Hamza Brigade, an Islamist militant group.[8] It arrested businessman Enamul Haque who allegedly provided funding to the group.[8]
On 18 April 2016, two robbers were killed in a gunfight with Rapid Action Battalion-7, which Ahmed commanded, in Mirsarai upazila.[9] In July, his team detained Mozaher Hossain Mia, who supplied weapons to the militants involved with July 2016 Dhaka attack.[10] His unit recovered more drugs from Chattogram that year in cartons of light bulbs.[11] In October 2016, three other robbers died in a shootout with Ahmed's unit.[12]
Ahmed, commanding officer (CO) of Rapid Action Battalion-7, announced the confiscation of 1.5 million Ya ba tablet and arrest of five Myanmar citizen on 25 June 2017.[13]
In January 2018, Ahmed was awarded for bravery in service by the government of Bangladesh.[14] Ahmed was serving as commanding officer of Rapid Action Battalion-7 when Ekramul Haque, a councilor of Tekhnaf Municipality, was killed in a shootout with RAB on 27 May 2018.[15] Ahmed called Ekramul a "top godfather of Yaba' trading" after his death and alleged they were many cases against him.[15][16]