Kim majored in film at the Seoul Institute of the Arts. He directed a number of short films, including How to Operate a Polaroid Camera (2004), Phantoms of the Archive (2014), and Unknown Woman (2018). He also directed feature films such as Worst Woman (2016) and The Table (2016). In 2019, he directed Walking at Night in Persona, the 2019 Netflix omnibus TV Series. He has been screened and won awards at a number of domestic and foreign film festivals, including the Busan International Film Festival, the Seoul Independent Film Festival, and the Moscow International Film Festival. In 2019, he completed the feature film Shades of the Heart, and is currently working on the second half of Josee.

Jang started studying film at Cinematheques ′Seoul Cultural School′ and majored in cinematography at the Korea Academy of Film Arts. The film, I’m Home from School!, he directed in 1998 was screened at the Busan Independent Film Festival. Later, he directed short films such as Hard-Boiled Chocolate Style (2002), Time in Heaven (2007), and feature films Eighteen (2009), Sleepless Night (2012), and A Midsummer’s Fantasia (2014). His films were screened and awarded at various domestic and international film festivals, including the Vancouver International Film Festival, the Nantes 3 Continental Film Festival, and the Busan International Film Festival. He also did producing Director Shin Dongmin′s feature debut film, Mom’s Song (2020). Director Jang is currently an assistant professor for the Film Department at Yong In University.