Pettit joined the U.S. attorney’s office in 2007 after serving as a senior trial counsel for the U.S. Navy stationed in San Diego. As an assistant U.S. attorney, she is a member of the National Security and Cybercrimes Section. She has also served as a judge in the U.S. Navy Reserves since 2015.
In 2018, she was a panelist in a discussion of the Rule of Law in the Pacific Fleet at the annual conference of the federal Ninth Judicial Circuit.
Pettit earned her B.S. with distinction from the U.S. Naval Academy. At Vanderbilt Law School, she was inducted into the Order of the Coif and served as Managing Editor of the Vanderbilt Law Review.