This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Developer Java based in Brazil. This is a senior backend engineering opportunity focused on building and evolving modern, cloud-native solutions within a microservices ecosystem. You will take ownership of complex backend capabilities, translating business and technical requirements into scalable, maintainable solutions. The role combines hands-on Java development with architecture, distributed systems, cloud infrastructure, and engineering best practices. You will contribute across the full development lifecycle, from technical refinement through deployment and production support. Collaboration with Tech Leads, Architects, Product Owners, and other specialists will be central to your work. You will also help raise engineering standards through code reviews, technical improvements, and knowledge sharing. The environment values autonomy, technical maturity, continuous learning, and practical use of AI tools to improve development productivity and quality.