Principal Database Engineer

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Principal Database Engineer based in Brazil. As a Principal Database Engineer, you will shape the architecture, reliability, and long-term evolution of critical database infrastructure supporting high-demand financial services. You will assess complex production environments, define technical direction, and lead the delivery of improvements that strengthen performance, scalability, and operational resilience. Working hands-on with MariaDB and complementary data technologies, you will guide challenging migrations, resolve complex incidents, and develop automation for safer database operations. You will collaborate with engineering, security, and compliance teams, influencing decisions across the organization without relying on formal management authority. This is a senior individual contributor opportunity for someone who combines deep technical expertise with strategic judgment, practical execution, and a strong commitment to dependable infrastructure.