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Series D+ · Research Scientist

Series D+ AI Startup Research Scientist Jobs

There are currently 85 open Research Scientist jobs across 26 Series D+ AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.

85Open roles
26Companies hiring
Sep 15, 2026Last updated
01

Open Research Scientist Roles at Series D+ AI Startups

RoleCompanyStageLocationPosted
Research ScientistAndurilSeries G+Multiple locationsSep 15, 2026
Senior Research ScientistAndurilSeries G+Multiple locationsSep 15, 2026
Senior Advanced Research ScientistAndurilSeries G+Multiple locationsSep 14, 2026
Staff Gen AI Research ScientistAndurilSeries G+Multiple locationsSep 14, 2026
Applied AI Scientist, Autonomous DefenseHorizon3AISeries EUS RemoteSep 14, 2026
Research Scientist, Battlespace AwarenessAndurilSeries G+Waltham, Massachusetts, United StatesSep 12, 2026
Research Scientist, Battlespace AwarenessAndurilSeries G+Multiple locationsSep 12, 2026
Senior Research Scientist, Battlespace AwarenessAndurilSeries G+Multiple locationsSep 12, 2026
Senior Research Scientist, Battlespace AwarenessAndurilSeries G+Multiple locationsSep 12, 2026
AI Research Team LeadCyeraSeries G+Tel AvivSep 10, 2026
AI ResearcherCyeraSeries G+Tel AvivSep 10, 2026
User Experience Researcher, PlatformAnthropicSeries G+Multiple locationsSep 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
Internship - Machine Learning Research EngineerPerplexity AISeries EBerlinSep 2, 2026
Forward Deployed Research ScientistLabelboxSeries DSan Francisco Bay AreaSep 1, 2026
Senior / Staff Machine Learning Research Scientist, AgentsScale AISeries G+Multiple locationsSep 1, 2026
Software Engineer, Applied AI ResearchHightouchSeries DMultiple locationsAug 28, 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
Member of Technical Staff (AI Researcher)Perplexity AISeries EMultiple locationsAug 25, 2026
People Research Scientist, RecruitingAnthropicSeries G+Multiple locationsAug 21, 2026
Recruiter, AI ResearchAnthropicSeries G+Multiple locationsAug 21, 2026
Research Engineer/Research Scientist, Pre-trainingAnthropicSeries G+Multiple locationsAug 21, 2026
Research Engineer / Research Scientist, TokensAnthropicSeries G+Multiple locationsAug 21, 2026
Research Scientist/Engineer, Biological SafetyAnthropicSeries G+Multiple locationsAug 21, 2026
Research Scientist, InterpretabilityAnthropicSeries G+San Francisco, CAAug 21, 2026
Research Scientist, Life SciencesAnthropicSeries G+San Francisco, CAAug 21, 2026
Research Scientist, Life Sciences (Chemistry)AnthropicSeries G+San Francisco, CAAug 21, 2026
Research Scientist, Life Sciences (Computational)AnthropicSeries G+San Francisco, CAAug 21, 2026
Staff+ Researcher, Cybersecurity ProductsAnthropicSeries G+San Francisco, CAAug 21, 2026
Transformative AI Research Economist, Economic ResearchAnthropicSeries G+San Francisco, CAAug 21, 2026
AI Research Engineer - GPU SimulationHelsingSeries EMultiple locationsAug 21, 2026
AI Research Engineer - 3D Computer VisionHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - AI SafetyHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - Computer VisionHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - Foundation ModelsHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - ML EngineeringHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - ML & Signal ProcessingHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - Reinforcement LearningHelsingSeries EMultiple locationsAug 20, 2026
AI Research Engineer - RoboticsHelsingSeries EMultiple locationsAug 20, 2026
AI Research Intern (PhD) – 3D Computer VisionHelsingSeries EMultiple locationsAug 20, 2026
View all Research Scientist jobs
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FAQ

How many Research Scientist jobs are open at Series D+ AI startups?

There are currently 85 open Research Scientist jobs across 26 Series D+ AI startups on Fast AI Jobs.

Why filter Research Scientist jobs by funding stage?

Funding stage signals company size, runway, and equity upside. Filtering to Series D+ startups narrows the list to Research Scientist roles at companies at a comparable point in their growth.

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.