A point guard, Carreira spent his entire career in his home-country, being mostly associated with Seixal, Belenenses and Benfica, winning several honours with the latter.
Born in Barreiro, Carreira interested in basketball was sparked by a cousin, who took him to Barreirense, where he started competing at age 9.
[1] In 1997, he started his professional career in the basketball section of telecommunications company, Portugal Telecom, staying for one season, before moving to Seixal.
[2] In 2002, the 23-year-old had his first spell at his hometown club, Barreirense, representing them for one year, before returning to Seixal for a second stint, in the season immediately after.
[2] In 2008, Carreira moved to Benfica,[3] helping in the resurgence of the club, winning multiple league and cup titles, and competing in European basket in the 2010-11 and 2014-15 editions of the EuroChallenge.