Kamal Uddin joined the 5th batch of Bangladesh Civil Service in admin cadre in 1984.
[4] In September 2009, Kamal Uddin was the executive director of Bangladesh Shipping Corporation.
[9] In February 2021, he requested the Indian secretary of Home Affairs to deploy the use of none lethal weapons at the Bangladesh-India border.
[12] Kamal Uddin retired from the post of Senior Secretary at the Minister of Home Affairs on 12 January 2023.
[14] Uddin was arrested after the fall of the Sheikh Hasina led Awami League government on 24 October 2024.