Baek Jong-bum

Baek Jong-bum was born on January 21, 2001, in Daejeon, South Korea. He attended Daejeon Jungang Elementary School and played in its football team. It competed in the 2012 Hwarang Daegi National Youth Soccer Tournament and advanced into the finals; Baek received the GK (Goalkeeper) Award for his performance in the competition.

Baek was admitted to Osan Middle School and played for the FC Seoul U-15 Team at the 33rd Seoul Football Association President's Cup in 2014. During the penalty shoot-out at the finals, he blocked Seil Middle School's final goal attempt, leading his team to a 5–4 victory. The team won its first championship in its second year participating in the competition. The team also won all 16 of its matches at the 2015 National Secondary Soccer League Seoul Southern Region the following year; Baek was credited for its success, allowing only two goals to be scored against his club throughout the tournament. He was given the Goalkeeper Award after his team won Industrial Bank of Korea's 51st Autumn Secondary Soccer Federation tournament.

Baek enrolled at Osan High School and was vice-captain of the FC Seoul U-18 Team. During winter training for the 2018 season, he sustained an elbow injury that forced him to take a leave of absence.

In a pool of 134 footballers, Baek was one of 15 selected to advance directly into the K League 1 in 2018. He, along with four others, signed a 5-year contract with FC Seoul, becoming the first of its players to have undergone the club's development system at both Osan Middle and High School.

Baek made his debut professional appearance in the sixth round of the 2022 K League 1 season amid an outbreak of COVID-19 among his team's squad, which faced off against Jeju United FC on March 19. In the second half of the game, as defender Jeong Woo-jae was shooting, Baek collided with the player's knee, resulting in head trauma. He was replaced by goalkeeper Hwang Sung-min and FC Seoul ultimately lost 2–1. Baek played his first full game two months later against Pohang Steelers. His strong defense led FC Seoul to a 1–0 victory. Midway through the year, he sustained an unspecified significant injury; FC Seoul recruited goalkeeper Seo Ju-hwan [ko] for the remainder of the season in Baek's absence.