Arrouya - Senior Software Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Arrouya - Senior Software Engineer based in Brazil. As a Senior Software Engineer, you will join a small engineering team working on software that supports complex reservation and operational workflows for public-sector organizations. You will contribute to both the modernization of a large production platform and the development of an entirely new product from the ground up. The role offers broad technical ownership across reservations, availability, scheduling, resource management, payments, refunds, and accounting. You will work across a modern TypeScript, Node.js, Express, React, and Next.js technology stack. Your architectural decisions will have a direct influence on the evolution, scalability, and reliability of the platform. You will tackle challenging business rules and data requirements while balancing the needs of established systems with greenfield development. This is an ideal opportunity for an experienced engineer who enjoys both untangling complex systems and building new solutions from 0 to 1.