Ruthie began her career as an associate at Gutierrez, Preciado & House, LLP, where she advised government entities on civil litigation matters. There, she managed an active caseload of matters from inception through trial. She has experience drafting complex legal documents including motions, discovery, and briefs. She has also played a key role in trial preparation including witness preparation, exhibit organization, trial document drafting, and trial strategy development.

During law school, she worked as a law clerk at Wallin & Klarich, where she conducted extensive legal research and analysis in all areas of criminal law. She also served as the Senior Online Editor of the UC Davis Law Review, as well as the Articles Selection Editor of the UC Davis Business Law Journal.