01
Open Research Scientist Roles at Series C AI Startups
| Role | Company | Stage | Location | Posted |
|---|
| Principal Research Scientist [Risk] | Banco Plata | Series C | Worldwide | Oct 22, 2026 |
| Research Scientist Junior/Junior+ | Banco Plata | Series C | Worldwide | Oct 22, 2026 |
| Senior Researcher | AssemblyAI | Series C | Remote | Oct 21, 2026 |
| Mercor AI Research Fund Grants: Economics of AI | Mercor | Series C | Multiple locations | Oct 19, 2026 |
| Lead UX Researcher | Emergent | Series C | Bangalore | Oct 15, 2026 |
| Senior Web Browser Researcher | Fingerprint | Series C | Remote | Oct 15, 2026 |
| Senior Data Researcher | TRM Labs | Series C | United States | Oct 9, 2026 |
| Applied Research Scientist, AI Research | Descript | Series C | Multiple locations | Oct 7, 2026 |
| Senior Technical Recruiter, AI/ML Research | Together AI | Series C | San Francisco | Sep 23, 2026 |
| Mercor AI Research Fund Grants: Benchmarks | Mercor | Series C | Multiple locations | Sep 22, 2026 |
| Senior AI Research Engineer | Standard Bots | Series C | Multiple locations | Sep 22, 2026 |
| AI research scientist | Writer | Series C | Multiple locations | Sep 22, 2026 |
| Senior AI Research Engineer | Emergent | Series C | Bangalore | Sep 21, 2026 |
| Research Scientist - Environments, Data and Post-Training | Mercor | Series C | San Francisco | Sep 18, 2026 |
| Research Scientist - Large Geometry Models | PhysicsX | Series C | Multiple locations | Sep 17, 2026 |
| Research Scientist, APEX Benchmarks | Mercor | Series C | San Francisco | Aug 27, 2026 |
| Senior ML Research Scientist | Rad AI | Series C | Multiple locations | Aug 27, 2026 |
| Staff AI Research Engineer | Standard Bots | Series C | Multiple locations | Aug 25, 2026 |
| Machine Learning Research Manager | Rad AI | Series C | Multiple locations | Jul 17, 2026 |
| Sr. Staff ML Researcher, LLM Algorithmic Optimization | d-Matrix | Series C | Santa Clara | Jul 15, 2026 |
| Clinical AI Researcher | Ambience Healthcare | Series C | San Francisco | Jun 16, 2026 |
| AI Research Engineer, Post-Training | Lovable | Series C | London | Apr 28, 2026 |
| Machine Learning Researcher, Multimodal LLMs | Bland | Series C | San Francisco | Apr 21, 2026 |
| Machine Learning Researcher, Audio | Bland | Series C | San Francisco | Apr 20, 2026 |
| Research Scientist | Skild AI | Series C | Multiple locations | Apr 15, 2026 |
| Research Scientist, Neural Reconstruction | Waabi | Series C | Toronto, ON | Mar 27, 2026 |
| Research Scientist, World Models | Waabi | Series C | Toronto, ON | Mar 27, 2026 |
| Research Scientist, Simulation Agents | Waabi | Series C | Remote US & Canada | Mar 25, 2026 |
| Research Scientist | Chai Discovery | Series C | San Francisco office | Mar 6, 2026 |
| Applied Researcher | Physical Intelligence | Series C | San Francisco | Jan 23, 2026 |
| Threat Researcher | Socket | Series C | United States | Dec 23, 2025 |
| 2027 Intern, PhD Research Scientist | Waabi | Series C | Toronto, ON | Dec 18, 2025 |