On 10 May 2012, Sasha was loaned to Goiás for the upcoming Série B season; he was the team's 17th signing of the year and the fifth from Internacional, including his youth team strike partner Ricardo Goulart. He made seven substitute appearances as his team won the championship. On 23 January 2013, as a half-time replacement for Caio in the second game of the year's Campeonato Goiano, he scored his first senior goal to give the Esmeraldino the lead in an eventual 3–1 win at Grêmio Esportivo Anápolis. He totalled three goals in 21 appearances as his team won the state title, one coming in a 4–1 win at Associação Atlética Aparecidense in the semi-finals on 5 May. Later in the year, Sasha's four goals in 16 games helped Goiás to sixth place in the edition of the national league; his first such strike came on 18 September as a substitute for Renan Oliveira in a 2–2 draw at Coritiba Foot Ball Club. He totalled another three goals in eight games in the year's Copa do Brasil, including one in the semi-final defeat to Clube de Regatas do Flamengo.
Return to Internacional
Sasha scored twice in seven games as the Colorado won the 2014 Campeonato Gaúcho; his first goal for them came on 29 January in a 2–1 home win over Sport Club São Paulo, three minutes after replacing Valdívia at the Estádio Francisco Stédile. He got another four in 12 games in the ensuing Série A, including two in a 4–2 home win over Coritiba on 28 September. Internacional won another state championship the following year, with Sasha's contributions including a brace on 4 February in a 4–4 home draw against Esporte Clube São José on 4 February 2015. He also got his first goals in continental competition, recording a goal in each game against Club Universidad de Chile in the second stage of the year's Copa Libertadores. Sasha was the team's top scorer with six goals in 15 games as Inter won a sixth consecutive state title in 2016; he opened the 3–0 home win over Esporte Clube Juventude in the second leg of the final. On the celebration, he grabbed the corner flag and started dancing a debutante ball, eluding fierce rivals Grêmio Foot-Ball Porto Alegrense's 15-year title drought; his dance later prompted to offensive replies by Luan on the 2016 Copa do Brasil and the 2017 Copa Libertadores Finals, both won by Grêmio. Sasha was a regular starter for Inter during the campaign, as his side suffered relegation for the first time in history. In the following year's promotion season, he also struggled with recurrent ankle injuries.
Santos
On 9 January 2018, Sasha joined Santos FC on loan until December, with a buyout clause. He made his debut for the club on 22 January, coming on as a substitute in a 1–0 Campeonato Paulista home loss against Clube Atlético Bragantino. Sasha scored his first goal for Peixe on 25 January 2018, netting the equalizer in a 2–1 away defeat of Associação Atlética Ponte Preta. On 15 March, he scored a brace in a 3–1 home win against Club Nacional de Football, being also named man of the match. On 19 April 2018, Sasha signed a permanent contract until 2022, with Zeca moving in the opposite direction. He started the 2019 campaign out of the first-team plans under new manager Jorge Sampaoli, but subsequently established himself as a regular. On 20 July 2020, Sasha filed a legal action against Santos, alleging unpaid wages, and was declared a free agent eleven days later; the following day, however, the judge himself revoked the decision after being deemed suspect to judge the case.
Style of play
Upon giving him his first professional contract, Internacional manager Celso Roth said of Sasha:
He is a boy who I have seen distinguishing himself in the reserves, a player with speed. Therefore, he's being added to the squad. He has speed, movement. We hope that, with calmness, with normal conditions, to give him the chance to mature. We have to be calm