Guillermo J. Siman possesses extensive experience in leadership and board governance across various prominent organizations. Currently serving as a Board Member at Puerto de Liverpool since March 2011, Guillermo also holds the positions of Vice Chairman and Executive Vice President at Grupo Unicomer, a role maintained since December 2000. Additional roles include Vice Chairman at ALSICORP and Director at Intradeco Inc., both since 1994, as well as Vice President of the Board at GS1 El Salvador. Previously, Guillermo was a Board Member at Banco Compartamos from April 2009 to May 2015 and served as Assistant Vice President at Citibank from August 1987 to 1992. Educational credentials include an S.M. in Management from MIT Sloan School of Management and a BBA in Management and Economics from Loyola University New Orleans. Early education was completed at UCA - El Salvador and Liceo Salvadoreño.