Hyltin became an apprentice with
New York City Ballet in 2002, and became a member of the corps de ballet the following year. She was named soloist in 2006 and principal dancer the following year. Her repertoire included classical roles such as Aurora in
The Sleeping Beauty and the Sylph in
La Sylphide,
George Balanchine's works such as "Rubies" from
Jewels,
Western Symphony and
Theme and Variations, and
Jerome Robbins works including
Afternoon of a Faun and
The Four Seasons. She also originated a number of roles including
Jean-Pierre Frohlich's
Varied Trio (in four) and
Justin Peck's
Pulcinella Variations. Hyltin received the
Janice Levin Dancer Award in 2005-06, which was given to promising corps dancers of NYCB. Hyltin was a teaching fellow at School of American Ballet between 2014 and 2016. She became a permanent faculty in 2016. She defended
Peter Martins, then Ballet Master in Chief of the New York City Ballet, when he was accused of physical and sexual abuse. Hyltin retired in December 2022 after performing the Sugarplum Fairy in the George Balanchine version of
The Nutcracker. ==Selected repertoire==