About Dremio Dremio is the unified lakehouse platform for self-service analytics and AI, serving hundreds of global enterprises. Our customers rely on Dremio for cloud, hybrid, and on prem lakehouses to power data mesh, data warehouse migration, data virtualization, and unified data access. Built on open-source technologies such as Apache Iceberg and Apache Arrow, Dremio provides an open lakehouse architecture that delivers fast time to insight at a fraction of the cost.

Role overview The Query Execution team builds the runtime that executes analytical queries at scale. The team sits between query planning and table scans, owning the systems that turn query plans into efficient, reliable execution. As a Senior Staff Software Engineer, you will work on query operators, expression evaluation, memory management, execution scheduling, runtime planning, and performance optimization. Your work will directly affect query performance, scalability, and reliability across Dremio's cloud data platform.

What you will be doing - Build the execution engine: design, implement, test, and support query operators, expression evaluation, execution scheduling, runtime planning, and resource management. - Improve runtime performance: optimize vectorized processing, concurrency, parallelism, memory usage, data exchange, and disk spilling. - Diagnose difficult problems: investigate query correctness and performance issues using query profiles, profiling tools, telemetry, benchmarks, logs, and production data. - Optimize Java and the JVM: improve CPU utilization, allocation behavior, garbage col

About Dremio Dremio is the unified lakehouse platform for self-service analytics and AI, serving hundreds of global enterprises. Our customers rely on Dremio for cloud, hybrid, and on prem lakehouses to power data mesh, data warehouse migration, data virtualization, and unified data access. Built on open-source technologies such as Apache Iceberg and Apache Arrow, Dremio provides an open lakehouse architecture that delivers fast time to insight at a fraction of the cost.

Role overview The Query Execution team builds the runtime that executes analytical queries at scale. The team sits between query planning and table scans, owning the systems that turn query plans into efficient, reliable execution. As a Senior Staff Software Engineer, you will work on query operators, expression evaluation, memory management, execution scheduling, runtime planning, and performance optimization. Your work will directly affect query performance, scalability, and reliability across Dremio's cloud data platform.

What you will be doing - Build the execution engine: design, implement, test, and support query operators, expression evaluation, execution scheduling, runtime planning, and resource management. - Improve runtime performance: optimize vectorized processing, concurrency, parallelism, memory usage, data exchange, and disk spilling. - Diagnose difficult problems: investigate query correctness and performance issues using query profiles, profiling tools, telemetry, benchmarks, logs, and production data. - Optimize Java and the JVM: improve CPU utilization, allocation behavior, garbage col