UBS Wealth Management has expanded its executive team with the hiring of Alexander S. Friedman as chief investment officer.

Friedman, a former chief financial officer of the Bill and Melinda Gates Foundation, will begin his role on March 1 and report to UBS Wealth Management Chief Executive Jurg Zeltner.

Friedman most recently managed private investment company Assymetry LLC, after leaving the Gates Foundation in March 2010. He has served as senior advisor to investment bank Lazard and senior advisor to the board of directors of emerging markets private equity firm Actis.

At the same time, UBS has added new staff to serve on Friedman’s team including Mona Sutphen, previously White House Deputy Chief of Staff for Policy to President Barack Obama, and Mark Haefele, an alternative investment asset manager formerly at Boston-based hedge fund Sonic Funds.

As chief investment officer, Friedman will lead global investment strategy and policy, while also working with UBS’ global asset management and investment bank businesses. Sutphen will lead macro analysis, while Haefele will lead investment analysis.