Md. Nuruzzaman started working as a lawyer on 4 September 1983.[2]
In 1987, Md. Nuruzzaman became an advocate in the Bangladesh High Court Division of Supreme Court of Bangladesh.[3]
On 30 June 2009, Md. Nuruzzaman was appointed an Additional Judge of the High Court Division of Supreme Court of Bangladesh.[2] He became a full judge of the High Court Division of Supreme Court of Bangladesh on 6 June 2011.[2]
On 17 September 2016, a bench led by Md. Nuruzzaman and Justice Zafar Ahmed rejected a petition by former Prime Minister Khaleda Zia challenging the proceedings of Barapukuria coal scam case.[4]
Md. Nuruzzaman was appointed to the Bangladesh Judicial Service Commission on 6 December 2017.[5]
On 9 October 2018, Md. Nuruzzaman was appointed to the Appellate Division of the Supreme Court of Bangladesh.[2] He is the chairperson of the enrollment committee of the Bangladesh Bar Council.[6][7] In January 2019, he became the chamber judge of the Appellate Division several times.[8] On 19 December 2019, he was appointed the vacation judge by the chief justice.[9] He has been appointed as the Performing Chief Justice of Bangladesh several times.[10]