Constien is from Vail, Colorado and a 2014 graduate of Battle Mountain High School. She attended the University of Colorado following high school in the hope of being an environmental engineer. Constein competes for the Tracksmith Amateur Support Program while being coached by Mark Wetmore and Heather Burroughs. In 2015, Constein ran at the IAAF World Cross Country Championships in Qingzhen, Guiyang finishing 62nd.