In 2006 Ortega became an instructor of applied mathematics at
Arizona State University and was promoted to assistant professor after she received her PhD in 2008. In 2017 Ortega became a visiting assistant professor of mathematics at her undergraduate institution
Pomona College. In 2018 she became an assistant professor of mathematics and statistics at
Sonoma State University. She is currently an Associate Professor and Assistant Dean of Research and Internships in the School of Science and Technology. Ortega became the president of the National Association of Mathematicians,
NAM, on February 1, 2021. Previously, she was the editor-in-chief of the
NAM editorial board to the
Mathematical Association of America MathValues blog, as well as editor of the NAM Newsletter. and chair of the NAM Publicity and Publications Committee from 2018 to 2021. Ortega has been featured in the
PBS show
SciGirls. == Awards and recognition ==