Born in Sarajevo in 1960, where he graduated from the School of Economics, University of Sarajevo, in 1984, at the Social Economy Department. He worked as a Financial Manager in the biggest BiH company “Energoinvest“ until 1990, after which he set up and managed a private finance consulting firm in Sarajevo.
Following the 1992-1995 war, Zametica worked as a Head of Department for planning and budget at the BiH Ministry of Defence. He retired in 2007, with the rank of a Colonel. Zametica coordinated preparation of all defence budgets up until his retirement. He was directly engaged in development of policy for management of defence resources and concept and procedures for the system of planning, programming and budgeting, implemented in the defence system institutions in BiH.
From 2000 to 2002 Zametica was a member of the Supervisory Board for the project of public accounting reform and introduction of the treasury system in BiH institutions. He was a member of several Steering and Supervisory Boards in public companies in BiH. Since 2008, he has worked as Executive Director in a public company located in Sarajevo.
Zametica was engaged in several projects implemented by the non-profit organisation Green Council, most recently development of the Feasibility Study for project of production of thermal insulation materials made from sheep wool (2016).