In 2020 she was included in a list of "most powerful women in banking" published by American Banker.

[1] Alemany was raised in the Bronx, New York, the daughter of Italian immigrants who operated a liquor store.

[17] Her strategy there was to concentrate on the core activities of the company, and dispose of unprofitable subsidiaries.

[19] In 2020 First Citizens BancShares agreed to buy CIT for $2.2 billion, and offered Alemany a position as vice-chair, with a salary of $1 million and guaranteed bonus of almost $6.9 million per year, conditional on her remaining with the company for two years.

[20][21] She has been on the board of the Center for Discovery since 2008,[22] of Automatic Data Processing since 2012,[23] of Fidelity National Information Services since 2014,[24] of Operation HOPE since 2015[25][26] and of Dun & Bradstreet since 2021.