Between January and December 2004, Gefferson and his compatriot and W Connection teammate Ronaldo Viana[2] played on loan with Serbian side FK Železnik in the First League of Serbia and Montenegro.
[3] The club was performing well those years, and Gefferson got the chance to play in the 2004–05 UEFA Cup narrowly losing against Steaua by a goal difference in the overall of the two leggs.
[6] Already before having their stint in Europe, Gefferson and Ronaldo were key-players in the 5 seasons they had spent with W Connection before 2004, and helped the club win two championships as well as several trophies.
[6] Further more, upon its return, Gefferson won one more TT Pro League with W Connection and also the Golden Boot and Player of the Year award in 2005.
[citation needed] Later, he had a spell in South Korea with Busan IPark, and in Angola with Libolo.