Guilherme has worked in the tax area since 2006, having extensive experience in consultancy and administrative litigation in indirect taxes and customs issues, having worked in some of the main law firms in the country.
As Legal Director of ABComm, Guilherme was responsible for drafting bills on tax matters related to electronic commerce and for conducting Collective Actions, with national scope and repercussion, aiming to protect the rights and interests of the Sector.
In 2021, Guilherme was recognized as one of the main tax experts in Brazil by the renowned ITR World Tax.
Guilherme was also elected to join the Retail Competitiveness Forum, promoted by the Ministry of Economy, due to his extensive expertise in legal issues related to electronic commerce. He is also a speaker and columnist on topics related to Tax Law.