M. Shahjahan is an advisor to Chairperson Professor Muhammad Yunus and currently is the Executive Vice Chairman of Grameen Kalyan.

Earlier he was the Managing Director of Grameen Bank. He acted as the Managing Director of Grameen Bank from 14 August 2011 to 30 October 2015. Now, he is on retirement. Earlier, he served as the Deputy Managing Director, the General Manager and Head of the Accounts, Finance, Planning, Monitoring and Evaluation Division, the Chief of the Audit Department, and the Zonal Manager of Grameen Bank. 

Mr. Shahjahan is a member of the Board of Directors of several companies that work in the fields of health, education, agriculture, welfare, renewable energy and telecommunications. He obtained a Bachelor of Commerce (Hons.) degree in Accounting from the University of Dhaka in 1976, as well as a Master’s degree in Accounting in 1977 and a Master’s degree in Finance in 1981. He was awarded ICAB Medal (Silver) for passing the ‘C.A. Intermediate’ examination at the earliest eligible chance in 1981.