Ahmed joined the district court as a lawyer on 17 October 1985.[4]
On 6 October 1988, Ahmed became a lawyer of the High Court Division of Bangladesh Supreme Court.[4]
On 8 November 2006, Ahmed was made a lawyer of the Appellate Division of Bangladesh Supreme Court.[4]
Ahmed was appointed an additional judge of the High Court Division of Bangladesh Supreme Court 4 November 2010.[4]
Ahmed and Justice M Shawkat Hossain stopping the proceedings of corruption cases, filed during the 2006-2008 caretaker government term, against Nurul Islam Babul, chairperson of Jamuna Group, and his wife Salma Islam.[5]
On 14 February 2012, Ahmed and Justice Sheikh Hassan Arif issued a verdict in favor of Grameenphone against fees claimed by Bangladesh Telecommunication Regulatory Commission.[6] Ahmed was appointed a permanent judge of the High Court Division of Bangladesh Supreme Court 15 October 2012.[4][7]
Ahmed and Justice Mohammad Ullah on 23 July 2015 issued a verdict denying bail to British-Bangladesh ISIS member who fought for the terrorist group in Syria and returned to Bangladesh to recruit.[8]
Ahmed and Justice Mohi Uddin Shamim in October 2021 denied bail to Mohammad Shahed, chairman of Regent Hospital, on fraud charges.[9] In September, he was part of the Bangladesh Supreme Court delegation to the Bangabhaban which went to submit the Annual Report-2020 of Supreme Court to President Abdul Hamid.[10]