This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Pessoa Desenvolvedora Java Sr based in Brazil. This is an opportunity for a senior Java developer to help evolve established SaaS products while contributing to modernization and continuous technical improvement.You will work across legacy code evolution, refactoring, architecture improvements, and the delivery of new capabilities.The role combines hands-on development with technical ownership, code quality, testing, and solution design.You will collaborate closely with engineering and product teams in a business-domain-driven environment with a strong financial context.As a senior member of the team, you will also support other developers through technical guidance, code reviews, and collaborative engineering practices.The environment encourages experimentation with AI-powered development tools to improve productivity and engineering outcomes.This is a fully remote role suited to someone who values autonomy, technical excellence, continuous learning, and meaningful product impact.