Couto moved to Macau at an early age and started his career thanks to the influence of the popular Macau Grand Prix. He joined PREMA in late 1996 and entered the two Formula 3 seasons. He ended up second in the 1997 Italian Formula 3 Championship and starred in PREMA's first Macau Grand Prix appearance. He would eventually take an elusive first win in his home race two years later. For 2018, he raced for PREMA in the Formula 3000 Championship. He later switched to touring car and GT Racing, winning the SuperGT GT300 title in 2015.