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Research Scientist · San Francisco

Research Scientist Jobs in San Francisco

There are currently 192 open Research Scientist jobs in San Francisco & Bay Area across 93 AI startups. 39% of these roles are at Series A–B startups. Every listing links straight to the company's official application page.

192Open roles
93Companies hiring
Sep 13, 2026Last updated
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Funding-stage mix

Series B 41 (21%)Series A 34 (18%)Series G+ 32 (17%)Growth 22 (11%)Seed 21 (11%)Series C 15 (8%)Series D 10 (5%)Series E 9 (5%)Unknown 5 (3%)Private Equity 1 (1%)Pre-Seed 1 (1%)Series F 1 (1%)
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Open Research Scientist Roles in San Francisco

RoleCompanyStageLocationPosted
Member of Platform Science (Research Scientist)AnthrogenSeedSan FranciscoSep 13, 2026
Member of Platform Science (Research Scientist, In-vivo)AnthrogenSeedSan FranciscoSep 13, 2026
AI/ML Research InternAfterQuerySeries ASan FranciscoSep 12, 2026
Researcher, Safety Training, National SecurityOpenAIGrowthMultiple locationsSep 12, 2026
Research Engineer / Research ScientistRiver AISeedMultiple locationsSep 11, 2026
Research Scientist – Frontier EvaluationsAfterQuerySeries ASan FranciscoSep 10, 2026
ML Scientist, Foundation Models for Life SciencesLila SciencesSeries AMultiple locationsSep 10, 2026
ML Scientist, Nucleic Acid DesignLila SciencesSeries AMultiple locationsSep 10, 2026
OBA Research Scientist/Engineer – Fusion Energy SystemsPacific FusionSeries AMultiple locationsSep 10, 2026
User Experience Researcher, PlatformAnthropicSeries G+Multiple locationsSep 9, 2026
Quantitative ResearcherHyperbolicSeries ASan Francisco, CASep 9, 2026
Applied AI Scientist, Small Language Model and AI TrainingPostmanSeries DMultiple locationsSep 9, 2026
Staff/Senior Machine Learning Research Engineer, Intelligent SystemsScale AISeries G+Multiple locationsSep 9, 2026
Director, Forward Deployed Researcher - Data as a ServiceSnorkel AISeries DMultiple locationsSep 9, 2026
Research ScientistSnorkel AISeries DMultiple locationsSep 9, 2026
Research Scientist - Frontier BenchmarksSnorkel AISeries DMultiple locationsSep 9, 2026
Forward Deployed Research ScientistGoodfireSeries BMultiple locationsSep 8, 2026
Forward Deployed Research Scientist, Life SciencesGoodfireSeries BMultiple locationsSep 8, 2026
Senior Technical Recruiter, AI/ML ResearchTogether AISeries CSan FranciscoSep 8, 2026
Researcher, LocomotionMenlo Research-Multiple locationsSep 4, 2026
Researcher, ManipulationMenlo Research-Multiple locationsSep 4, 2026
Machine Learning Research Scientist, Agent Data Foundation - Enterprise GenAIScale AISeries G+Multiple locationsSep 4, 2026
Machine Learning Research Scientist Agents - Enterprise GenAIScale AISeries G+Multiple locationsSep 4, 2026
Staff Machine Learning Research Scientist Agent Post-training - Enterprise GenAIScale AISeries G+Multiple locationsSep 4, 2026
Researcher, Agent Safety, Training and EvaluationsOpenAIGrowthSan FranciscoSep 3, 2026
Researcher, Agent Safety, Oversight and System MitigationsOpenAIGrowthSan FranciscoSep 3, 2026
Research Scientist: Post-TrainingGeneralist AISeries BSan Francisco Bay Area (San Mateo) or Boston (Somerville)Sep 2, 2026
Principal Scientist / Associate Director, Agentic AI Research for Materials ScienceLila SciencesSeries AMultiple locationsSep 2, 2026
Research Scientist, Frontier CapabilitiesLila SciencesSeries AMultiple locationsSep 2, 2026
Scientist II / Senior ML Scientist, Cofolding and Structure-Aware MLLila SciencesSeries AMultiple locationsSep 2, 2026
Scientist II / Senior ML Scientist, Data-Efficient Learning for Drug DiscoveryLila SciencesSeries AMultiple locationsSep 2, 2026
Senior / Principal ML Scientist, Foundation Models for Life SciencesLila SciencesSeries AMultiple locationsSep 2, 2026
ML Researcher - Image / Video DiffusionKreaSeries BSan FranciscoSep 1, 2026
ML Researcher - PosttrainingKreaSeries BSan FranciscoSep 1, 2026
Forward Deployed Research ScientistLabelboxSeries DSan Francisco Bay AreaSep 1, 2026
Researcher, Alignment InterpretabilityOpenAIGrowthSan FranciscoSep 1, 2026
Research Scientist/Research Engineer, MaterialsPeriodic LabsSeedMenlo Park, CASep 1, 2026
Senior / Staff Machine Learning Research Scientist, AgentsScale AISeries G+Multiple locationsSep 1, 2026
Electrical Engineer / Applied PhysicistUntilSeries ABay AreaSep 1, 2026
Data Scientist - ML ResearchLMArenaSeries ABay AreaAug 31, 2026
Software Engineer, Applied AI ResearchHightouchSeries DMultiple locationsAug 28, 2026
Research Scientist, APEX BenchmarksMercorSeries CSan FranciscoAug 27, 2026
Applied AI Researcher, Agent Systems & EvaluationNuroSeries EMultiple locationsAug 26, 2026
Machine Learning Research Scientist, Behavior Planning and PredictionNuroSeries EMultiple locationsAug 26, 2026
Machine Learning Research Scientist: Generative Modeling for PlanningNuroSeries EMultiple locationsAug 26, 2026
ML Research Scientist, Prediction & Smart AgentsNuroSeries EMultiple locationsAug 26, 2026
Senior/Staff Machine Learning Research Scientist: Generative Modeling for PlanningNuroSeries EMultiple locationsAug 26, 2026
Machine Learning Research Scientist, EvaluationsScale AISeries G+Multiple locationsAug 26, 2026
Machine Learning Research Scientist, Post-TrainingScale AISeries G+Multiple locationsAug 26, 2026
Applied Research Scientist, AI ResearchDescriptSeries CMultiple locationsAug 25, 2026
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FAQ

How many Research Scientist jobs are open in San Francisco?

There are currently 192 open Research Scientist jobs in San Francisco across 93 AI startups on Fast AI Jobs.

What funding stages are hiring Research Scientists in San Francisco?

39% of open Research Scientist roles in San Francisco are at Series A–B startups, with the rest spread across seed and later-stage companies.

How often is this list updated?

Listings are refreshed daily from official company career pages and deduplicated by posting. Every link points to the original application page.