Ji Young Chae trained at Seoul Arts High School and Korea National University of Arts. In 2011, she joined Washington Ballet. Chae joined Boston Ballet in 2013, and was promoted to soloist in 2015.
 
Chae was awarded the gold medal at the 2010 International Ballet Competition in Jackson, Mississippi, and first prize at the 2010 International Ballet Competition in Varna, Bulgaria. In 2011, she received the gold medal at the Boston International Ballet Competition. She has performed at the Paris Conservatory Ballet Festival and the International Baltic Ballet Festival Gala.Ji Young Chae trained at Seoul Arts High School and Korea National University of Arts. In 2011, she joined Washington Ballet. She has performed at the Paris Conservatory Ballet Festival and the International Baltic Ballet Festival Gala.
 
Her Boston Ballet repertoire includes Karole Armitage’s Bitches Brew, George Balanchine’s Chaconne and Donizetti Variations, August Bournonville’s pas de deux from Flower Festival in Genzano and La Sylphide (lead Sylph), John Cranko’s Romeo & Juliet (Gypsy), Jorma Elo’s Creatures of Egmont and Fifth Symphony of Jean Sibelius, William Forsythe’s Artifact 2017, Pas/Parts 2018, The Vertiginous Thrill of Exactitude and, Mikko Nissinen’s The Nutcracker (Sugar Plum Fairy, Dew Drop, Ballerina Doll, and Snow Queen), Marius Petipa’s The Sleeping Beauty (Aurora and Woodland Glade Fairy), Justin Peck’s In Creases, Leonid Yakobson’s Pas de Quartre, and Yury Yanowsky’s Smoke and Mirrors.
 
Chae was awarded the gold medal at the 2010 International Ballet Competition in Jackson, Mississippi, and first prize at the 2010 International Ballet Competition in Varna, Bulgaria. In 2011, she received the gold medal at the Boston International Ballet Competition.
 
Chae joined Boston Ballet in 2013, was promoted to soloist in 2015, and promoted to principal dancer in 2018.