Brazil - Hybrid: Senior Software Developer - Platform & Complex Systems (RJ, BR)

Design, develop, test, and maintain complex software platforms and distributed, performance-sensitive systems. Contribute to system architecture and technical decision-making while building and integrating services through APIs, microservices, and complex data flows. Improve scalability, performance, security, and reliability using modern engineering practices like CI/CD, automation, cloud, and Agile. Work as a senior contributor or lead across global, cross-functional teams, selecting among multiple technical tracks.