Jalloh is a political scientist, businessman and a former United Nations official.

[1] Jalloh is a senior member of the Sierra Leone People's Party.

Jalloh earned a bachelor's degree in political science from Fourah Bay College, a Master's degree in political science from the University of Ibadan in Ibadan, Nigeria; and doctorate degree from the University of Bordeaux in Bordeaux, France.

He has also served as a member of the board of senior advisers at the United Nations stabilization mission in Mali and the Sahel region.

[3] Jalloh is a devout Muslim, and was born and raised in Koidu, Kono District in eastern Sierra Leone.