{"schemaVersion":"jobsearcher.job.v1","id":"b04027cac852abfe0c5ba542","url":"https://jobsearcher.com/jobs/b04027cac852abfe0c5ba542","canonicalUrl":"https://jobsearcher.com/jobs/b04027cac852abfe0c5ba542","title":"Senior Software Engineer, Query Optimization","description":"OverviewJoin the MongoDB Server Query Optimization team to help build a world-class distributed query optimizer. You will influence the lifecycles of queries, from parsing to plan selection, and work on a flexible-schema document database. The role blends research, architecture, and hands-on implementation to improve performance for transactional, time-series, and analytical workloads. You'll collaborate across teams and mentor others while driving architectural decisions for the next major version.Compensation / Benefitsequityemployee stock purchase programflexible paid time off20 weeks fully-paid parental leavefertility and adoption assistance401(k) planResponsibilitiesInnovate in flexible-schema database design and contribute to a premier query optimization systemArchitect and lead features related to query performance, diagnostics, and language enhancementsSet initiative-level strategy, roadmaps, and guide cross-team executionReview designs, code, and mentor teammates; participate in design reviews and knowledge sharingCoordinate with client drivers, cloud services, enterprise tools, support, and marketing to align changesIdentify, implement, test, and support new features in query optimization and execution componentsResearch state-of-the-art query systems to inform design decisionsAdvise management on roadmap decisions and architectural designsCollaborate with engineers to coordinate large, feature-rich codebase changesContribute to the long-term technical roadmap of the MongoDB Query teamKey requirements10+ years of experience in data management systems, distributed systems, or large-scale backend engineeringExperience with building production-level code with a large user base and robust designStrong competencies in data structures, algorithms, and software design/architectureExperience with C++ or another systems programming languageAbility to trace defects, estimate complexity, and design evolution/ integration strategiesStrong foundation in core database internalsExperience with query optimization is a plus but not requiredBackground in compilers, language transpilers, or distributed storage systems is beneficialmentoring and coachingleadership by examplecross-team collaborationC++ or systems programming languagedistributed systemscore database internals","company":"MongoDB","rawCompany":"mongodb","city":"Millbrae","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-10-26T13:38:39.466Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1243.00","title":"Database Architects","slug":"database-architects"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"513210","title":"Software Publishers","slug":"software-publishers"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Software Engineer, Query Optimization","description":"OverviewJoin the MongoDB Server Query Optimization team to help build a world-class distributed query optimizer. You will influence the lifecycles of queries, from parsing to plan selection, and work on a flexible-schema document database. The role blends research, architecture, and hands-on implementation to improve performance for transactional, time-series, and analytical workloads. You'll collaborate across teams and mentor others while driving architectural decisions for the next major version.Compensation / Benefitsequityemployee stock purchase programflexible paid time off20 weeks fully-paid parental leavefertility and adoption assistance401(k) planResponsibilitiesInnovate in flexible-schema database design and contribute to a premier query optimization systemArchitect and lead features related to query performance, diagnostics, and language enhancementsSet initiative-level strategy, roadmaps, and guide cross-team executionReview designs, code, and mentor teammates; participate in design reviews and knowledge sharingCoordinate with client drivers, cloud services, enterprise tools, support, and marketing to align changesIdentify, implement, test, and support new features in query optimization and execution componentsResearch state-of-the-art query systems to inform design decisionsAdvise management on roadmap decisions and architectural designsCollaborate with engineers to coordinate large, feature-rich codebase changesContribute to the long-term technical roadmap of the MongoDB Query teamKey requirements10+ years of experience in data management systems, distributed systems, or large-scale backend engineeringExperience with building production-level code with a large user base and robust designStrong competencies in data structures, algorithms, and software design/architectureExperience with C++ or another systems programming languageAbility to trace defects, estimate complexity, and design evolution/ integration strategiesStrong foundation in core database internalsExperience with query optimization is a plus but not requiredBackground in compilers, language transpilers, or distributed storage systems is beneficialmentoring and coachingleadership by examplecross-team collaborationC++ or systems programming languagedistributed systemscore database internals","datePosted":"2026-10-26T13:38:39.466Z","dateModified":"2026-10-26T13:38:39.466Z","hiringOrganization":{"@type":"Organization","name":"MongoDB","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Millbrae","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"b04027cac852abfe0c5ba542"},"url":"https://jobsearcher.com/jobs/b04027cac852abfe0c5ba542"}}