He is the Chairman and CEO of Amir Hamza (T) Limited which he owns with his family. He has a lot of experience in the coffee industry which spans over 40 years and is committed to the development thereof. The company has the largest and most modern with state-of-the-art factory in East and Central Africa that produces spray dried instant coffee. The company is also involved in trading of green coffee beans.
Amir Hamza has sat on some of the following boards:
- National Coffee Input Voucher Scheme
- Tanzania Coffee Development Trust Fund
- Tanzania Coffee Research Institute
- Bukoba Urban Water and Sewerage Authority
- Kagera Sports Committee
- The Tax Appeal Board.
In the past, he served as the Chairman of the Tanzania Coffee Association and he has also been on the board of the Tanzania Chamber of Commerce, Industries and Agriculture Kagera Region, as Vice Chairman.
He was also appointed by the Ministry of Agriculture on the Board of Tanzania Coffee Board and Chairman of the Tanzania Coffee Board. He is also the Interim Chairman of National Quality Association of Tanzania. Regionally, Amir Hamza also sits on the Board of Kagera Regional Hospital.
Amir Hamza has attended and continues to attend many conferences, exhibitions and seminars related to the coffee industry which are held in different countries worldwide.