Senior Software Engineer - Presto C++ Core

What you'll do

• Design and implement transparent query retry mechanisms and intermediate result spooling to handle worker failures.
• Own the resource enforcement layer on worker nodes for memory limits, CPU quotas, and spill-to-disk triggers.
• Develop scheduling support for mixed worker pools based on node capabilities and current load.
• Build instrumentation across coordinator and worker layers to surface per-query resource utilization metrics.
• Extend Presto's cross-layer engineering by ensuring workload management decisions are correctly enforced in both Java and C++.
• Contribute to design documents and RFCs, defining technical direction for the Presto query engine.
• Validate workload management behavior under contention and failure injection through benchmarking infrastructure development.

What we're looking for

• 5+ years of deep expertise in Java and/or C++, with strong understanding of memory management and concurrency.
• Experience building or contributing to a production-grade query engine or large-scale data processing system.
• Proficiency in profiling and optimizing systems across CPU, memory, and I/O in distributed environments.
• Familiarity with Presto internals including resource groups, stage scheduling, connector architecture, and plugin models.
• Ability to design and implement fault tolerance mechanisms for transparent query retry and intermediate result spooling.
• Experience building instrumentation and metrics infrastructure for distributed systems.
• Knowledge of database scheduler methodologies such as Phased Execution and Spark-style scheduling.