[8] Karim is the secretary general of the South East Asian Cooperation Foundation.
[16] In 2009, Karim was appointed principal secretary to Prime Minister Sheikh Hasina on a two-year contract.
[9] In July 2017, he was elected chairperson of the Green Delta Insurance Company Limited.
[20] He was re-elected chairperson of the Green Delta Insurance Company Limited in 2018.
[23][24] In July 2021, he was appointed executive director of Underprivileged Children's Educational Programme.
[26][27] He is the president of the management committee of the UCEP Institute of Science and Technology.