Puyaga has more than 11 years’ experience as practicing mining engineer. He has an operational background in underground and open pit hard rock mining as well as project experience across a range of mining studies through scoping, pre-feasibility and feasibility studies, as well as operational phases.

He possesses a firm understanding of mining methods, mine planning, and scheduling in conjunction with in-depth knowledge of underground drill and blast design and execution.

He has also extensive experience in the application of key Mining softwares such as Surpac, Mine 2-4D, Talpac, Micromine and XPAC.

He holds BSc. degree in Mining Engineering from University of Dar es Salaam and has also undertaken several trainings locally and internationally.

He is a registered professional engineer with Tanzania Engineers Registration Board (ERB) as well as a member of the Institution of Engineers Tanzania (IET).