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Series B · Research Scientist

Series B AI Startup Research Scientist Jobs

There are currently 98 open Research Scientist jobs across 43 Series B AI startups. Every listing links straight to the company's official application page, deduplicated and refreshed daily.

98Open roles
43Companies hiring
Nov 1, 2026Last updated
01

Open Research Scientist Roles at Series B AI Startups

RoleCompanyStageLocationPosted
AI ResearcherVegaSeries BOn -Site, IsraelNov 1, 2026
AI Biologist - Drug DevelopmentLatchBioSeries BSan Francisco or RemoteOct 30, 2026
Security ResearcherVegaSeries BOn -Site, IsraelOct 28, 2026
Senior Security ResearcherEndor LabsSeries BMultiple locationsOct 27, 2026
AI Research Resident (Algorithms Codesign)NormalSeries BNew YorkOct 27, 2026
AI Biologist - Structural BiologyLatchBioSeries BSan Francisco or RemoteOct 26, 2026
AI Biologist - Peptide DiscoveryLatchBioSeries BSan Francisco or RemoteOct 26, 2026
Sr. AMO PhysicistQuEra ComputingSeries BMultiple locationsOct 26, 2026
Research Scientist Intern - PhDSaviyntSeries BMilpitas, CaliforniaOct 26, 2026
Technical Recruiter, AI ResearchLila SciencesSeries BMultiple locationsOct 23, 2026
Machine Learning Scientist I / II, Protein DesignLila SciencesSeries BMultiple locationsOct 21, 2026
ML Scientist, Foundation Models for Life SciencesLila SciencesSeries BMultiple locationsOct 21, 2026
ML Scientist I/II, AI for Protein EngineeringLila SciencesSeries BMultiple locationsOct 21, 2026
Principal Scientist / Associate Director, Agentic AI Research for Materials ScienceLila SciencesSeries BMultiple locationsOct 21, 2026
Research Scientist, Computational Condensed Matter PhysicsLila SciencesSeries BMultiple locationsOct 21, 2026
Research Scientist / Research Engineer, Automated SafetyLila SciencesSeries BMultiple locationsOct 21, 2026
Senior ML Scientist, AI for Protein EngineeringLila SciencesSeries BMultiple locationsOct 21, 2026
Senior ML Scientist, Biological SystemsLila SciencesSeries BMultiple locationsOct 21, 2026
Senior / Principal Chemist, AI SafetyLila SciencesSeries BMultiple locationsOct 21, 2026
Senior / Principal Computational Biologist, AI SafetyLila SciencesSeries BMultiple locationsOct 21, 2026
Senior / Principal ML Scientist, Foundation Models for Life SciencesLila SciencesSeries BMultiple locationsOct 21, 2026
Senior/Principal ML Scientist, Translational BiologyLila SciencesSeries BMultiple locationsOct 21, 2026
AI Biologist - MicroscopyLatchBioSeries BSan Francisco or RemoteOct 20, 2026
AI Biologist - Biologics DevelopmentLatchBioSeries BSan Francisco or RemoteOct 20, 2026
Research Scientist – Multimodal Foundation ModelsMecka AISeries BMultiple locationsOct 15, 2026
Senior Security ResearcherEndor LabsSeries BMultiple locationsOct 12, 2026
ML Research Engineer, LondonIsomorphic LabsSeries BMultiple locationsOct 12, 2026
Research Scientist – 3D Environment ReconstructionMecka AISeries BMultiple locationsOct 1, 2026
Research Scientist – Neural 3D ObjectsMecka AISeries BMultiple locationsOct 1, 2026
Research Scientist – Full Body MotionMecka AISeries BMultiple locationsOct 1, 2026
Research Scientist – Hand Tracking & ManipulationMecka AISeries BNew YorkSep 29, 2026
Associate Principal Engineer - Threat ResearcherSaviyntSeries BBengaluru, IndiaSep 29, 2026
Research Scientist – Body Pose DetectionMecka AISeries BMultiple locationsSep 28, 2026
Research Scientist I / II – High Throughput ChemistryIambicSeries BSan Diego HQSep 24, 2026
Production Chemist TechnicianOsmoSeries BElizabeth, NJSep 23, 2026
Founding Research Scientist, Applied AIAgentioSeries BNew York, NYSep 21, 2026
Research ScientistRoboflowSeries BSan FranciscoSep 21, 2026
UX ResearcherClairSeries BMultiple locationsSep 14, 2026
AI Researcher - Perception1X TechnologiesSeries BSan Carlos, CASep 14, 2026
AI/ML Research InternAfterQuerySeries BSan FranciscoSep 12, 2026
Research Scientist – Frontier EvaluationsAfterQuerySeries BSan FranciscoSep 10, 2026
Machine Learning Scientist, BioMLProfluentSeries BMultiple locationsSep 10, 2026
Machine Learning Scientist, PretrainingProfluentSeries BMultiple locationsSep 10, 2026
Expert Quantum PhysicistAlice & BobSeries BParisSep 9, 2026
Research Scientist I/II, Purification SciencesIambicSeries BSan Diego HQSep 9, 2026
Forward Deployed Research ScientistGoodfireSeries BMultiple locationsSep 8, 2026
Forward Deployed Research Scientist, Life SciencesGoodfireSeries BMultiple locationsSep 8, 2026
Research Scientist: Post-TrainingGeneralist AISeries BSan Francisco Bay Area (San Mateo) or Boston (Somerville)Sep 2, 2026
Staff ML Research Engineer, Multimodal Structure & MarengoTwelve LabsSeries BSeoul, South KoreaSep 2, 2026
ML Researcher - Image / Video DiffusionKreaSeries BSan FranciscoSep 1, 2026
View all Research Scientist jobs
02

FAQ

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

There are currently 98 open Research Scientist jobs across 43 Series B 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 B 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.