Senior Query Optimizer Software Engineer

Why work at Voltron Data?

• We are Going for Impact: We are a Series A, venture-backed startup assembling a global team to design next-generation data systems, creating a new foundation for data processing built on composable open standards, with Theseus, our GPU query engine for petabyte-scale ETL, harnessing the speed and efficiency of modern hardware.
• We are Committed to Bridging Open Source Communities: We are a collection of open source maintainers who have been driving open source ecosystems over the last 15 years, particularly in the C++, Python, and R programming ecosystems.
• We are Building a Diverse, Inclusive Company:  We are creating a representative, equitable, and respectful workplace that prioritizes employee growth. Everyone at Voltron Data is bought into the company’s success; all voices are critical to shaping the organization’s future. 

• Spending time learning about the Apache Arrow compute primitives, compute intermediate representation, compute engine, and other foundational components.
• Familiarizing yourself with the different partners for compute kernels and the query execution engine on Apache Arrow.
• Learning and embracing the Apache development process.

• Becoming familiar with our SQL parser and query optimizer.
• Benchmarking queries and exploring the effects of different query optimization techniques using our query optimizer.
• Making changes and improvements to the existing query optimization rules and how it creates physical execution plans for the execution engines under development.

• Adding new query optimization rules.
• Making improvements to decision making in the cost based optimization based on metadata availability for the tables being queried.
• Integrating non-SQL operations to the optimization framework.
• Working with client interfacing engineers to understand performance bottlenecks in customer queries.

• Proposing and implementing improvements to the query parsing and optimization framework.
• Integrating with a stateful inter-query query engine context to optimize the reusability of compute stages across queries that query the same data in similar ways.

To All Agencies: Please, no phone calls or emails to any employee of Voltron Data outside of the Talent Acquisition team. Voltron Data's policy is to only accept resumes from agencies via the Voltron Data Agency Portal. Agencies must have a valid fee agreement in place and they must have been assigned the specific requisition to which they submit resumes, by the Talent Acquisition team. Any resume submitted outside of this process will be deemed the sole property of Voltron Data and in the event a candidate is submitted outside of this policy is hired, no fee or payment of any kind will be paid