William Alves de Oliveira

Botafogo

William Alves started off career in known Brazilian club Botafogo. He made his debut for Botafogo in Copa Sudamericana match against Colombian Independiente Santa Fe. In this match William netted the equalizing goal. The match ended in a 1–1 draw.

AS Trenčín

William Alves came to AS Trenčín in winter 2012–13 and signed a three-and-a-half-year contract. He made his debut for AS Trenčín in a friendly match against Czech SFC Opava on 26 January 2013. On 2 March 2013, he made his competitive debut for Trenčín in the league game against Spartak Myjava, when he came on in 77th minute. In winter 2013–14, he left the club due to a disagreement between AS Trenčín and Botafogo.

MŠK Žilina

William Alves signed a three-year contract with fellow Corgoň liga club MŠK Žilina in January 2014. On 1 March, he scored a goal on his competitive debut for Žilina in a 2–1 league loss to his former club AS Trenčín. On 6 August 2015, he scored a 120th-minute goal against FC Vorskla that allowed Žilina to reach the play-off rounds of Europa League. Two weeks later, William scored a brace against Athletic Bilbao in the first leg of the Europa League play-off round, which Žilina won 3–2 after having been 2–0 down.

Kayserispor

In January 2016, William Alves was transferred to Turkish club Kayserispor.