Born in
Rio de Janeiro,
Brazil, Nem began his professional career at
Fluminense before being loaned out to
Figueirense in 2011. His time at Figueirense was very successful with Nem scoring nine goals from a second striker position and being awarded the best newcomer of the 2011 Brazilian league, beating
Bruno Cortes and
Leandro Damião. Upon the expiration of his loan he was returned to the first team at Fluminense. In his first season at Fluminense, Nem played mostly as a left winger or second striker and managed six goals and eight assists in 34 appearances in an impressive first full season at the club. In the 2013 season, Nem scored two and assisted two more in the first part of the season. At just 21 years of age, Wellington Nem signed a five-year deal with Ukrainian giants
Shaktar Dontesk. His first season at Shakhtar was a huge disappointment with Nem spending most of the campaign on the sideline either injured or benched, playing just 140 minutes of football throughout the 2013–14 season and scoring a solitary goal. The next season started similarly, with Nem left off the sides
Champions League list and playing just once in the first 13 rounds of the Premier Liga. Following 2017, Nem was loaned out again to the Brazilian league, this time for Brazilian side
São Paulo FC. Over the next two seasons Nem would return to Shakhtar Donetsk following his loan spell, only to be reloaned again by boyhood club Fluminense. He would go on to make 18 more appearances for the club scoring a solitary goal before an end of his loan spell saw him return to Donetsk once again. Eventually he was released for free by the club, spending the next several years in various Brazilian clubs as well as Portuguese side
Arouca.
Kisvárda FC On 31 January 2024, Nem was signed by
Nemzeti Bajnokság I club
Kisvárda FC.
Bình Dương FC On 6 September 2024, Nem joined
V.League 1 club
Becamex Binh Duong. == International career ==