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Research Engineer · San Francisco

Research Engineer Jobs in San Francisco

There are currently 94 open Research Engineer jobs in San Francisco & Bay Area across 47 AI startups. 27% of these roles are at Series A–B startups. Every listing links straight to the company's official application page.

94Open roles
47Companies hiring
Jul 30, 2026Last updated
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Funding-stage mix

Series G+ 22 (23%)Series A 18 (19%)Seed 18 (19%)Series C 9 (10%)Series B 7 (7%)Series E 6 (6%)Series D 5 (5%)Growth 5 (5%)Unknown 3 (3%)Series F 1 (1%)
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Open Research Engineer Roles in San Francisco

RoleCompanyStageLocationPosted
Research Engineer, Large-Scale TrainingTogether AISeries CSan FranciscoJul 30, 2026
Research Engineer - Agent MemoryMem0Series ASan Francisco Bay AreaJul 29, 2026
Staff Research EngineerOntonSeedSan FranciscoJul 29, 2026
Member of Technical Staff - Research EngineerBlack Forest LabsSeries BSan Francisco (USA), Freiburg (Germany)Jul 28, 2026
Research Engineer / Scientist (Robot Learning)World LabsSeries ESan FranciscoJul 27, 2026
Staff Research Engineer, Data AgentsDatabricksSeries G+San Francisco, CaliforniaJul 24, 2026
Research Engineer, EnvironmentsMercorSeries CSan FranciscoJul 24, 2026
Research EngineerDecagonSeries DSan FranciscoJul 22, 2026
Performance Research Engineer (multiple levels)Efficient ComputerSeries ASan Jose, CA OR Pittsburgh, PAJul 22, 2026
Staff Research Engineer - CodeTuringSeries ESan Francisco, California, United StatesJul 20, 2026
Research Engineer, Post-Training InferenceTogether AISeries CSan FranciscoJul 19, 2026
Research EngineerAndoSeedSan FranciscoJul 18, 2026
Research EngineerSableSeries ASan FranciscoJul 16, 2026
Research Engineer, Infrastructure, InferenceThinking Machines LabSeedSan FranciscoJul 16, 2026
Research Engineer, Developer Experience, TinkerThinking Machines LabSeedSan FranciscoJul 15, 2026
Research EngineerConsoleSeries ASan Francisco (On-site)Jul 14, 2026
ML/Research Engineer, SafeguardsAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Chip Design RL (Reinforcement Learning)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Code RL (Reinforcement Learning)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Computer UseAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Cybersecurity RL (Reinforcement Learning)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, DiscoveryAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Domain ScalingAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Economic Research Data PlatformAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, InterpretabilityAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Knowledge FoundationsAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Life SciencesAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Machine Learning (Reinforcement Learning)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Performance RL (Reinforcement Learning)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Pretraining ScalingAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, Production Model Post-TrainingAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer / Scientist, AlignmentAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer / Scientist, Frontier Red Team (Cyber)AnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer (Senior Staff+), Safeguards LabsAnthropicSeries G+San Francisco, CAJul 14, 2026
Staff Research Engineer, Discovery TeamAnthropicSeries G+San Francisco, CAJul 14, 2026
Research Engineer, PrivacyOpenAIGrowthSan FranciscoJul 14, 2026
Research EngineerFirecrawlSeries ASan Francisco, CA (Hybrid)Jul 12, 2026
Research EngineerGreptileSeries ASan FranciscoJul 10, 2026
Research Engineer, Core MLTogether AISeries CSan FranciscoJul 10, 2026
Systems Research Engineer, GPU ProgrammingTogether AISeries CSan FranciscoJul 10, 2026
Systems Research Engineer Intern - GPU Programming (Fall 2026)Together AISeries CSan FranciscoJul 10, 2026
Research Engineer, VoiceInflection AIGrowthPalo Alto, California, United StatesJul 9, 2026
Machine Learning Systems Research Engineer, Agent Post-training - Enterprise GenAIScale AISeries G+San Francisco, CAJul 9, 2026
Research Engineer - Distributed TrainingPrime IntellectSeries ASan FranciscoJul 8, 2026
Research Engineer - Reinforcement LearningPrime IntellectSeries ASan FranciscoJul 8, 2026
Research Engineer - RL InfrastructurePrime IntellectSeries ASan FranciscoJul 8, 2026
Member of Technical Staff (Research Engineer)AnthrogenSeedSan FranciscoJul 7, 2026
Research Engineer, GeneralistExaSeries CSan Francisco, CaliforniaJul 7, 2026
Principal Research & Engineering, Realtime Voice AIInflection AIGrowthPalo Alto, California, United StatesJul 2, 2026
Principal Research Engineer, Model Training & Post-TrainingInflection AIGrowthPalo Alto, California, United StatesJul 2, 2026
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FAQ

How many Research Engineer jobs are open in San Francisco?

There are currently 94 open Research Engineer jobs in San Francisco across 47 AI startups on Fast AI Jobs.

What funding stages are hiring Research Engineers in San Francisco?

27% of open Research Engineer 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.