This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Head of Security based in Brazil. In this strategic leadership role, you will define and drive the security strategy for a global financial technology platform supporting cross-border payments and digital financial services. You will oversee the security of applications, cloud infrastructure, identity systems, payment operations, and third-party integrations while protecting sensitive data and financial assets. Working closely with engineering leadership and cross-functional teams, you will embed security into the software development lifecycle and enable teams to innovate without compromising resilience. You will lead incident response, strengthen threat detection capabilities, and oversee compliance and risk management across a complex technical environment. You will also shape the safe adoption of AI-assisted development tools, autonomous agents, and LLM-powered systems. This is an opportunity to build and scale a security function, influence executive-level decisions, and establish security as a strategic business enabler in a fast-growing, fully remote environment.