[4] In August 2018, Shin signed with JYP Entertainment;[4] in the same year, she subsequently appeared in labelmate Day6's "Shoot Me" music video.

[7] In 2019, Shin landed her first lead role in the fantasy television series He Is Psychometric, where she starred opposite Park Jin-young.

[19] In the drama, she portrayed the main character Ok Chan-mi, a high school shooting athlete who investigates her twin brother's death and seeks revenge.

[21] A month later in the same year, Shin was cast in The Glory as the younger version of Park Yeon-jin, the main antagonist of the story who persistently bullies the young Mun Dong-eun (portrayed by Jung Ji-so).

With 380.38 million hours watched, The Glory ranked seventh among the all-time most popular non-English television series on Netflix.

[22] In 2024, Shin was cast in tvN's historical musical drama, Jeong Nyeon, portraying the role of Heo Yeong-seo.