The government has appointed Masud Bin Momen as new foreign secretary.
A notification was issued by the Ministry of Foreign Affairs on Tuesday (Dec 31) in this regard.
It said that Masud would discharge his duties as foreign secretary until further notice.
He will succeed M Shahidul Haque who went on retirement on Monday (Dec 30) after serving as foreign secretary for seven years.
Masud served as Secretary (Asia and Pacific) at the headquarters after serving as Permanent Representative of Bangladesh to the United Nations.
Previously, he served as Bangladesh Ambassador to Japan and Italy.
A graduate from Dhaka University, Masud obtained a master's degree in International Relations from Tufts University in the United States and belongs to the 1985 batch of BCS (FA) cadre.
From 1998 to 2001, he was director-in-charge of the Foreign Ministry's United Nations Wing and Foreign Secretary's Office in Dhaka.
He served as director of Poverty Alleviation at SAARC Secretariat in Kathmandu, Nepal, from 2001 to 2004.
After that, he was a deputy commissioner at the Bangladesh High Commission in New Delhi, India, from 2004 to 2006.
From 2006 to 2008, he was director-general for Bangladesh's Ministry of Foreign Affairs, responsible for matters related to South Asia, the South Asian Association for Regional Cooperation (SAARC), the Bay of Bengal Initiative for Multi-Sectoral Technical and Economic Cooperation.
Masud had served as Permanent Representative to the Food and Agriculture Organization (FAO), World Food Programme and International Fund for Agricultural Development.
Besides, he served in Bangladesh Permanent Mission in New York and Bangladesh High Commission in Islamabad in different capacities.
On Nov 3, 2015, the government appointed Masud as the ambassador and permanent representative of Bangladesh to the United Nations.
In July last year, Foreign Secretary Haque was promoted to senior secretary of the government and served as Foreign Secretary of the government of Bangladesh since Jan 10, 2013.