He is the general manager of the Williamson diamond mining company, owned jointly by the government and outside concerns. Trained as a mining engineer at the Imperial College of Science and Technology in London, he has held a number of research and management positions in the Tanzanian gold and diamond industry. As a chief executive of his company, he also oversees services for the company township Mwadui, comprising of 15,000 people. He has worked in the Commonwealth Secretariat in London as a mining consultant to the Southern African Development Coordination Conference, serves on the board of several companies, and is party secretary of Chama Cha Mapinduzi in Mwadui. As a Humphrey Fellow, he hopes to learn more about executive decision making in public enterprises, financial management, corporate planning, and budgeting.