He moved abroad after the 1997 FIFA World Youth Championship to spend time in Europe with Feyenoord,[2] who loaned him to then feeder club Excelsior for whom he made his debut in the Eerste Divisie against Emmen on 18 October 1997.

[3] In 1999, he signed for two years for German second division side Karlsruhe alongside compatriot Mínor Díaz,[4] playing 24 matches,[5] before returning to Costa Rica and Saprissa.

[6] He was originally acquired by Major League Soccer and Real Salt Lake from Saprissa in exchange for Pablo Brenes, and was immediately sent to Chivas USA[7] for a draft pick, and spent a year with the team.

Sequeira got a good start to his career at Tromsø, scoring the 1–0 winning goal in the 8th minute of his first official match for the club, against Vålerenga on 9 April 2007.

[12] Sequeira has played for the Costa Rica national football team on various youth levels, and received his first senior cap in a February 1999 friendly match against Jamaica.