Momen joined the
Bangladesh Civil Service in 1982. He served as private secretary to Prime Minister
Khaleda Zia in the early 1990s. He served as the chairman of
Bangladesh Road Transport Authority and managing director of
Biman Bangladesh Airlines during the 2001 to 2006
Bangladesh Nationalist Party government. At the same time four others were made contractual secretaries,
Sheikh Abdur Rashid in the
Secondary and Higher Education Division,
Ehchanul Haque in Roads and Highways Department,
Nasimul Gani in Public Department of President
Mohammed Shahabuddin's Office, and
M. A. Akmal Hossain Azad in Ministry of Railway. At the same time the advisor in charge of the Ministry of Home Affairs was changed from Brigadier General
M. Sakhawat Hossain to Lieutenant General
Jahangir Alam Chowdhury. In September, he sent sent nine more police officers, AKM Hafiz Akhtar, Bashir Ahmed,
Devdas Bhattacharya, Khandker Lutful Kabir, Mir Rezaul Alam, Imam Hossain, Mizanur Rahman, Chowdhury Manjurul Kabir, Dadon Fakir, Shamim or Rashid Talukder, and Rafiqul Islam, into forced retirement. He then sent
Krishna Pada Roy,
Mozammel Haque, and Sarder Rakibul Islam into retirement. He sent three more police officers,
Harun Ur Rashid, Shahabuddin Khan, and Kh Mahid Uddin, into forced retirement in October. He rehired five police officers, Abdullah Al Mamun, Ali Hossain Khan,
Delwar Hossain Mia,
Nazmul Karim Khan, and Zillur Rahman, who were sent to retirement by the previous Awami League government. In March 2026, Momen resigned from the Anti-Corruption Commission along with fellow commissioners Brigadier General (retired)
Hafiz Ahsan Farid and
Mia Mohammad Ali Akbar Azizi. ==References==