This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Sr. Fraud Specialist based in Brazil. As a Senior Fraud Specialist, you will play a key role in safeguarding a growing international payments platform by developing and implementing robust fraud prevention strategies. You will take full ownership of the fraud prevention function, from real-time transaction monitoring and complex investigations to the design of risk controls and detection models. Your work will help minimize financial losses while maintaining a seamless experience for legitimate users. Operating in a fast-paced, fully remote fintech environment, you will combine hands-on execution with strategic thinking to build scalable fraud prevention policies and processes. This is an opportunity to shape the foundations of a critical business function, collaborate across teams, and potentially build and lead a dedicated fraud prevention team as the business grows.