[3] On 1 April 1993, Akhtaruzzaman joined the judicial branch of the Bangladesh Civil Service and was appointed an assistant judge.
[5][6] On 21 October 2019, Akhtaruzzaman was appointed an additional judge of the High Court Division.
[9] The Appellate Division of the Bangladesh Supreme Court criticized the verdict saying bail should not be given considering only the age of the convict.
[9] Akhtaruzzaman and Justice Zafar Ahmed of the High Court Division cancelled an order of the University of Dhaka demoting faculty member Samia Rahman for plagiarism on 4 August 2022.
[10] On 18 October, Akhtaruzzaman and Justice Zafar Ahmed ordered the government of Bangladesh to explain why its reconstitution of the board of trustees of Manarat International University should not be declared illegal.