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Staff Engineer, Query Optimization

🌐 Remote💼 Full-time💰 $151,000–$151,000🗓 2026-08-07 → 2026-09-26

Core

Design and build a world-class distributed open-source query optimizer for MongoDB, handling parsing, optimization, and plan selection for transactional, time-series, and analytical workloads.

Role type

Staff Engineer, Query Optimization

Builds

Distributed, flexible schema document database query execution systems

Domain

Database systems, distributed systems, query optimization

Deliverable

production ML models | product features

Required skills

Data structures, algorithms, software design/architecture, C++ or systems programming, database internals, large codebase navigation, defect tracing, work complexity estimation, integration strategy design

Preferred skills

Query optimization, compilers, language transpilers, distributed storage systems

Technologies

C++, MongoDB, distributed systems frameworks

Responsibilities

Design and build the heart of a distributed query optimization system; Research state-of-the-art query systems to inform design; Set initiative-level strategy and architect plans; Identify, design, implement, test, and support new features related to query performance and robustness; Mentor and coach team members

Seniority

Staff, hands-on IC with strategic leadership

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