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Staff Software Engineer, Server Query Optimization

MongoDB· Server Query Optimization / MongoDB Query Team
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Hybrid (Remote (U.S. or Canada, ET or CT focus))$101k - $273kfull-timePosted 2mo ago

About the role

Join the MongoDB Server Query Optimization team to design and build the heart of a distributed, flexible schema, document database. Responsible for parsing, optimization, and plan selection within the MongoDB Query Language, with focus on improving performance for transactional, time-series, and analytical workloads.

Responsibilities

  • Innovate in the area of flexible schema databases. Help us build a world-class query optimization system
  • Research state-of-the art query systems to inform our design
  • Leverage deep knowledge of the strength and weakness of the product and of industry trends to provide technical vision and direction
  • Set initiative level strategy, architect plans, and lead the team towards successful execution
  • Advise and partner with management on roadmap decisions, processes, and architectural designs
  • Identify, design, implement, test, and support new features related to query performance and robustness, query language enhancements, diagnostics, and integration with other products and tools
  • Work with other engineers to coordinate seamless changes in a feature-rich, large code base
  • Work with other teams including client drivers, cloud services, enterprise tools, support, consulting, education, and marketing to coordinate changes or contribute to their projects
  • Influence and grow team members through active mentoring, coaching and leading by example

Qualifications

  • 5+ years of experience in data management systems, distributed systems, or large-scale backend engineering
  • Experience with building production-level code with a large user base, robust design structure and rigorous code quality
  • Degree in Computer Science or similar field, or equivalent practical experience, with strong competencies in data structures, algorithms, and software design/architecture
  • Experience with large code bases written in C++ or another systems programming language
  • A strong foundation in core database internals; direct experience in query optimization is a bonus but not prerequisite
  • Backgrounds in compilers, language transpilers, or distributed storage systems considered a plus

Skills

Required:Distributed systemsC++Software architecture

Benefits

  • equity
  • participation in the employee stock purchase program
  • flexible paid time off
  • 20 weeks fully-paid gender-neutral parental leave
  • fertility and adoption assistance
  • 401(k) plan
  • mental health counseling
  • transgender-inclusive health insurance coverage
  • health benefits offerings
Last updated Oct 22, 2026. Interested? Apply on the company site.
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