[2] He played for Vietnamese side Hà Nội ACB between 2000 and 2011 and captained the club during a period.

With Vietnam U23, Đức Tuấn featured in the 2003 SEA Games, hosted in his home country.

In the final against Thailand, Đức Tuấn made a positioning mistake which allowed the opponent to score the only goal of the game.

Aftermath was heavily criticized by the Vietnamese media and fans and was also suspected of match fixing, which almost forced him to retire.

In May 2024, following the appointment of Kim Sang-sik as Vietnam national team's head coach, Đức Tuấn was selected to become his assistant manager.