Siqueira Castro – Advogados

Public law, Regulatory Law

Partner

Holds a Master’s degree (2013) and a Ph.D. (2022) in Public Law from the University of São Paulo (USP), with a solid background in Public Law, focusing on public procurement, administrative contracts, and regulated sectors. He has extensive experience in structuring, monitoring, and renegotiating infrastructure contracts, as well as in litigation before audit courts, the judiciary, and in arbitration proceedings. He is an active member of several institutions and committees dedicated to public contracts and arbitration. Guilherme has taught in postgraduate courses and also serves as an arbitrator listed by ARBITAC and CAM-FIEP

Portuguese and English

Arbitrator on the reference lists of ARBITAC and CAM-FIEP. Member of the Public Contracts Committee of the Instituto Brasileiro de Direito da Construção – IBDiC. Member of the Instituto Brasileiro de Direito Regulatório – IBDRE. Associate of the Dispute Resolution Board Foundation – DRBF. Professor in the Postgraduate Program in Public Procurement and Administrative Contracts at Centro Universitário Autônomo do Brasil – UNIBRASIL (2013-2016). Visiting professor in the LL.M. in Infrastructure and Regulation Law at FGV Direito Rio (2022).

Law degree from UFPR (2006) Master’s degree in Law from USP (2013) PhD in Law from USP (2022)