He won the silver medal in the men's 85 kg event at the 2018 Asian Games held in Jakarta, Indonesia.

[1][2] In 2017, Jang won the bronze medal in the men's 85 kg event at the Summer Universiade held in Taipei, Taiwan.

[3] In August 2024, Jang competed in the men's 102 kg event at the 2024 Summer Olympics held in Paris, France.

[4] He lifted 373 kg in total and finished in ninth position.

This biographical article relating to weightlifting in South Korea is a stub.