Developer Master, AI Engineer (backend Java + Mobile Android+iOS)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Developer Master, AI Engineer (backend Java + Mobile Android+iOS) based in Brazil. This is a senior technical leadership opportunity focused on redesigning and modernizing a large-scale SuperApp across Android, iOS, and Java backend platforms. You will lead a multidisciplinary engineering team while introducing AI-driven and agentic development practices into the software lifecycle. The role combines hands-on architecture and development with technical leadership, solution definition, and stakeholder management. You will design scalable applications powered by Large Language Models and help create AI agents that accelerate engineering workflows. The position requires strong expertise in backend Java, cloud technologies, and modern AI development methodologies. You will work closely with business and engineering stakeholders to translate requirements into robust technical solutions and successful production rollouts. This is an impactful environment for an experienced engineer who wants to shape both product modernization and the future of AI-native software development.