Jordaan was born in Trichardt and grew up in Secunda, Mpumalanga as one of six siblings.[1] She attended Laerskool Goedehoop and Hoërskool Oosterland in Secunda until moving to Saudi Arabia with her family for three years, where she completed her high school education at the American School Dhahran.[1] Upon her return to South Africa in 2010, she attended the University of Pretoria, earning a bachelor's degree in psychology, philosophy, and French.[2]
Jordaan first became active in politics in 2014. She served as a DA councillor on the Govan Mbeki Local Municipality council in Mpumalanga from 2015 until 2022. At 23 years old, she was the youngest member of the DA's caucus on the council when she joined in 2015. She served as the DA's chief whip on the council from 2016 to 2018, and then as the party's caucus leader from 2018 to 2021. She also served as deputy chair of the DA's Mpumalanga branch from 2020 to 2022. She resigned from the council in 2022 to become a leadership development coordinator for the DA, focused on training candidates for office.[3]