Kim began his MLB career with the Boston Red Sox in 2001 and was traded to the Montreal Expos the next season.

[1] On September 24, Kim pitched complete game shut out against San Francisco Giants at Coors Field, leading the team's 6-0 victory.

He was acquired by the Cincinnati Reds on September 5, 2006, from the Colorado Rockies in exchange for future considerations.

After playing one season in the minor leagues, he signed with the Doosan Bears in the Korea Baseball Organization at the end of 2007.

After a dreadful season in 2013, (5-6, 5.52 ERA and only pitched 60.2 innings due to injury), Kim was waived by the Bears.