The Most Powerful Women in Banking

As chief financial officer for the Americas, Mahtani's job includes managing communications with regulators, the board of directors and other stakeholders, an especially complex undertaking during lockdown.

As part of the “New Normal” task force she created last year, Trolli set up an internal channel to provide information on topics such as managing remote work and parenting during a pandemic.

Smith, who heads technology and operations, is overseeing two major tech initiatives: the conversion of Zions' core banking systems and the construction of a new, 400,000-square-foot technology center.

The bank's head of home lending has been tasked with managing the mortgage division through a housing boom but also with fixing years of regulatory troubles. 

Apart from overseeing global compliance, McNiff is a co-leader of the Citi Women Affinity group, which promotes gender equality across the company.