Kayzer made his first team – and Série A – debut for Vasco on 16 September 2015, coming on as a second-half substitute for Serginho in a 2–2 away draw against Cruzeiro.[2] He only appeared in two further matches during the campaign, both as a substitute.
On 26 February 2016, Kayzer was loaned to Oeste until the end of the year.[3] On 24 May, after featuring rarely, he moved to Série C side Portuguesa also in a temporary deal,[4] but again featured sparingly.
On 9 April 2018, Kayzer signed for Cruzeiro and was immediately loaned to Atlético Goianiense in the Série B.[6] He was a regular starter for the side, scoring seven goals and narrowly missing out promotion.
Kayzer returned to Raposa for the 2019 season; initially assigned to the first team,[7] he was rarely used and subsequently moved out on loan to Ponte Preta.[8] A subsequent loan move to Chapecoense followed,[9] where he featured sparingly as the club suffered relegation.
Atlético Goianiense
On 29 December 2019, Kayzer returned to Atlético Goianiense, also on loan, with the side now in the top tier.[10]
Athletico Paranaense
On 25 September 2020, Kayzer joined Athletico Paranaense on a permanent deal after a long series of loan spells.[11]
Fortaleza
On 8 February 2022, Kayzer signed for Fortaleza on a permanent deal.[12]