[2][3] Over 20 years in the U.S. government beginning in 1983, Evans worked at the National Park Service, Office of Personnel Management (OPM), and the Department of Agriculture.

[10] She took up her post in September and served in the role until February 2020, when Secretary Dan Brouillette replaced her with Alexander Gates.

Several months later she was named the CIO of the Department of Homeland Security, overseeing the largest civilian IT budget of more than $7 billion.

[14] From March 2020 - January 20, 2021, Evans served as the Chief Information Officer (CIO) of the U.S. Department of Homeland Security.

[17] She served on the Trump Transition and Landing Teams to develop the management agenda addressing technology initiatives government wide.