Senior Staff Software Engineer - Query Engine

Dremio·Portugal - Remote·Remote·Posted 7 September 2026

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About the role

Be Part of Building the Future Dremio is the unified lakehouse platform for self-service analytics and AI, serving hundreds of global enterprises, including Maersk, Amazon, Regeneron, NetApp, and S&P Global. Customers rely on Dremio for cloud, hybrid, and on-prem lakehouses to power their data mesh, data warehouse migration, data virtualization, and unified data access use cases. Based on open source technologies, including Apache Iceberg and Apache Arrow, Dremio provides an open lakehouse architecture enabling the fastest time to insight and platform flexibility at a fraction of the cost. Learn more at www.dremio.com. About the role Dremio's Query Planner & Reflections team owns the SQL planner and optimizer, built on Apache Calcite, and the reflections engine that transparently rewrites queries to use pre-computed materializations instead of raw source data. The team sits between SQL and execution, owning the systems that turn queries into efficient plans and make them fast. As a Senior Staff Software Engineer, you'll set technical direction for these systems: driving ambiguous, cross-team initiatives, raising the bar through design and code review, and growing other senior…

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