Captain Kamrul Islam Mazumder, had his early education at Faujdarhat Cadet College from 1969 to 1975. He passed HSC in 1975 securing 8th position in the combined list of successful candidates from the Comilla Board. He then graduated from the Bangladesh Marine Academy. He passed two professional examinations from Ireland and finally passed his Master Mariner Examinations from Liverpool in England. He started his sea career as a cadet with the Bangladesh Shipping Corporation in 1977, later moving to a HongKong based Company to serve in various sea-going capacities on board bulk carriers. He commanded bulk carriers from 1992 till 1997 when he left sea to start his shore-based career. Capt. Mazumder joined Maersk Bangladesh Limited as Manager, Chattogram in 1997. 

During his tenure with Maersk Bangladesh, Capt. Mazumder oversaw PAN- Country Operations and Security apart from general management of the Chattogram Branch. He last served Maersk Bangladesh Ltd. as General Manager Operations.