Mohammad Abdullah Al Mamun has more than 19 years of professional exposure in corporate affairs both in local and multinational companies in various capacities. Currently, he is serving as Company Secretary of Eastern Bank PLC.  (EBL). He looks after the corporate and business regulatory affairs of the EBL and its subsidiary companies. He is also the Secretary General of EBL Foundation.

He is a Member of the Executive Committee (EC) of Bangladesh Association of Publicly Listed Companies (BAPLC). BAPLC is the only organization representing the publicly listed companies in Bangladesh.

He is an elected Council Member and Treasurer of the Institute of Chartered Secretaries of Bangladesh (ICSB). He is also a Fellow Member of the ICSB. He also performs  responsibilities as the Chairman in various committees of ICSB including Secretarial Practice Assurance Committee, IT Sub-committee, Dhaka Regional Chapter (DRC) Sub-committee. He is also vice President of Uttaran Foundation, a non-profit organization.

He did his bachelor degree in Accounting from Calcutta University, India.  After completing his master degree in Accounting, and also the LL.B and LL.M degrees, Mr. Mamun got himself enrolled as an Advocate in the Supreme Court of Bangladesh as well as the Judges Court, Dhaka. He was an adjunct faculty of the Institute of Chartered Secretaries of Bangladesh (ICSB) and also served as a visiting lecturer of corporate laws at Dhaka International University.

He is an avid reader and has a strong impulse to travel and explore the world. He attended various training, seminars, workshops, and conventions both at home and abroad on numerous professional issues.