Before founding Raisin, Tamaz spent 10 years with McKinsey & Company, the last 3 years as Principal leading the McKinsey Savings and Investment products Service Line for EMEA countries. He served some of the largest retail, universal, and wholesale banks throughout Europe and Asia. Core areas of expertise were performance management/organization, deposit gathering, direct banking, branch transformation, SME strategy, and regulation.

Tamaz holds a PhD in agricultural economics and graduated with honors in law (both from University of Giessen). Before studying in Germany, Tamaz graduated high school with honors aged 12 and completed his studies in international economics at Tbilisi State University, at age 15.