He is part of the South Korea men's national volleyball team.

On club level he plays for the Uijeongbu KB Insurance Stars.

Hwang decided to forgo his final two years of collegiate eligibility and declared for the 2016 V-League Draft.

In May 2017 Hwang was first selected for the South Korean senior national team to compete at the 2017 FIVB World League.

He played as the starting setter in Team Korea's final game against Slovakia and led his team to a 3–2 victory, though he was mostly on the bench serving as the third-string setter behind Lee Min-gyu and No Jae-wook during the competition.