At Mercado Livre, I led the front-end team for Mercado Pago’s credit card acquisition platform and owned its dependency vulnerability management. I mapped the acquisition flows, identified a critical dependency without a fallback plan, and led its remediation.
At Stone, I led the consolidation of the group’s authentication systems, migrating 12M users to a single Ping Identity platform in three months. I introduced PKCE, opaque tokens, token revocation, and a CIBA flow, and designed the unified identity model for the group.
At Zup Innovation, I led the authorization team for the CIAM platform behind Itaú Unibanco’s Banking-as-a-Service offering, including the production authorization flow for PIX. I’m focused on identity and access management, application security, and regulated financial systems, and I’m an MSc candidate in Cyber Security at the University of London.

