He gained widespread popularity after starring in the BL drama Where Your Eyes Linger (2020).

[3] Jang made his acting debut in 2012, appearing in the drama series A Gentleman's Dignity.

He then starred in the film The Beauty Inside where he played one of Woo Jin's transformations.

[4] In 2018, he played supporting role as a martial arts fighter in hit dramas Bad Papa.

[5][6] In the same year, he played his first leading role in the romance drama Jal Pa Gin Love.