Ray McGuire is head of global investment banking at Citigroup.

A native of Dayton, Ohio, McGuire says he wanted to be a doctor and lawyer growing up. He became a lawyer and a banker instead, earning his bachelor's, law degree and MBA at Harvard before starting his career as a lawyer at Skadden, Arps. Following a stint at the law firm Patterson, Belknap, Webb & Tyler, McGuire embarked on a Wall Street merry-go-round, working in the M&A department at First Boston, as a partner at Wasserstein Perella, and as a managing director in M&A at Merrill Lynch before joining Morgan Stanley as co-head of the M&A group. In 2005, McGuire departed Morgan after a number of senior executives bid adieu to the firm during the tumultuous tenure of Phil Purcell and joined Citigroup. Handling a number of large deals since he joined Citigroup, and despite huge losses during the financial crisis, Citigroup has built up a large cash reserve which has helped them weather the storm. [Image via Getty]