Born in Cruz Alta, Rio Grande do Sul,[1] Maidana finished his formation with Criciúma.

[2] On 7 September 2015 Maidana rescinded his contract with Criciúma, with the club still holding a percentage of his rights.

[3] Fifteen days later he joined São Paulo, who paid R$ 2 million for 60% of his rights to Monte Cristo EC.

[8] On 23 August 2021, Maidana signed a season-long loan deal with Portuguese Primeira Liga side Gil Vicente.

[11] On 15 May 2015 Maidana was included in Brazil under-20s' final list ahead of that year's FIFA U-20 World Cup.