[1][2] He previously served as the minister of Mines and Mineral Resources and also held the position of Director-General at the petroleum directorate in Sierra Leone.

Serving as a Reservoir Engineer from September 2011 to September 2017 and as a Wellsite Drilling Engineer from January 2011 to December 2017, Mr. Kabba operated across diverse regions including Ghana, Ivory Coast, Sierra Leone, the Middle East, and Russia.

[3][4] Transitioning from the private sector to governmental roles, Kabba assumed the position of Executive Director General of the Petroleum Directorate Sierra Leone from July 2018 to July 2020, overseeing operations within the organization.

Currently, Mr. Kabba serves as the Minister of Foreign Affairs and International Cooperation for the Government of Sierra Leone, a role he undertook in July 2023.

On June 12, 2024, Timothy Musa Kabba announced on Twitter that he had been granted the favor to perform Hajj on the special invite of His Royal Highness, the Custodian of the Two Holy Mosques of Mecca.