Toloui served as the global co-head of Emerging Markets Portfolio Management at PIMCO, a position he has held since 2011, and chaired the firm's Asia-Pacific Portfolio Committee since 2012. Toloui joined PIMCO in 2006 as a Portfolio Manager for emerging markets, adding responsibilities for global bond portfolios in 2009. Previously, Toloui held a variety of jobs at the Department of the Treasury, including Director of the Office of the Western Hemisphere from 2003 to 2006, Senior Adviser to the Under Secretary for International Affairs from 2001 to 2003, and Deputy Director and International Economist in the Office of Central and Southeastern Europe from 1999 to 2001.[citation needed]