AI research jobs in San Francisco

1. Baseten · 4 matching
   • Post-Training Applied Researcher · San Francisco, CA
   • Base Labs Fellowship · San Francisco, CA
   • Post-Training Research Engineer · San Francisco, CA
2. Sierra · 1 matching
   • Research Engineer, Applied Research · San Francisco, CA
3. Mercor · 6 matching
   • Research Intern · San Francisco, CA
   • Research Scientist - Environments, Data and Post-Training · San Francisco, CA
   • Research Scientist, APEX Benchmarks · San Francisco, CA
4. Anthropic · 24 matching
   • Staff Research Engineer, Multi-Agent Scaling · San Francisco, CA
   • Research Engineer / Research Scientist, RL Frontiers · San Francisco, CA
   • Research Operations, Reinforcement Learning · San Francisco, CA
5. Periodic Labs · 4 matching
   • Research Scientist, Scaling RL · Menlo Park, CA
   • Research Scientist/Research Engineer, Midtraining · Menlo Park, CA
   • Research Engineer, Lab Automation · Menlo Park, CA
6. Thinking Machines Lab · 16 matching
   • Model Designer · San Francisco, CA
   • Research Engineer, Web Crawling · San Francisco, CA
   • Research, Mid Training · San Francisco, CA
7. Etched · 1 matching
   • MTS, Agent Research · San Jose, CA
8. Chai Discovery · 3 matching
   • Research Engineer - Auto Research · San Francisco, CA
   • Research Scientist · San Francisco, CA
   • Research Engineer · San Francisco, CA
9. Cartesia · 5 matching
   • Research Engineer, Data Infrastructure (Language Modeling) · San Francisco, CA
   • Researcher, Post Training · San Francisco, CA
   • Researcher, Evals · San Francisco, CA
10. Elorian AI · 1 matching
    • Model Safety Contractor · Palo Alto, CA
11. Together AI · 11 matching
    • Research Intern, Frontier Agents (Summer 2027) · San Francisco, CA
    • Research Intern, Frontier Agents (Winter 2027) · San Francisco, CA
    • Systems Research Engineer Intern - GPU Programming (Winter 2027) · San Francisco, CA
12. Perplexity · 5 matching
    • Perplexity Research Fellowship · San Francisco, CA
    • Member of Technical Staff (AI Researcher) · San Francisco, CA
    • Member of Technical Staff (Model Behavior) · San Francisco, CA
13. OpenAI · 39 matching
    • Researcher, Safety Training, National Security · San Francisco, CA
    • Research Engineer, AI for Chip Design · San Francisco, CA
    • Researcher, Agent Safety, Oversight and System Mitigations · San Francisco, CA
14. Fireworks AI · 2 matching
    • Member of Technical Staff, Research (2026 PhD New Grad) · San Mateo, CA
    • Member of Technical Staff, Research · San Mateo, CA
15. xDOF · 1 matching
    • Member of Technical Staff, Research Engineer · San Francisco, CA
16. Mistral AI · 4 matching
    • Research Engineer, Full Stack · Palo Alto, CA
    • Research Engineer, Code Agents Infra · Palo Alto, CA
    • Applied Scientist · Palo Alto, CA
17. Reflection AI · 4 matching
    • Member of Technical Staff - Post-Training · San Francisco, CA
    • Member of Technical Staff - Safety · San Francisco, CA
    • Member of Technical Staff - Evaluations · San Francisco, CA
18. Dyna Robotics · 5 matching
    • Research Scientist, Simulation · Redwood City, CA
    • Applied Researcher - Deployment Intelligence · Redwood City, CA
    • Research Internship · Redwood City, CA
19. World Labs · 4 matching
    • Research Engineer / Scientist (Robot Learning) · San Francisco, CA
    • Research Engineer / Scientist (SLAM) · San Francisco, CA
    • Research Engineer / Scientist (3D Tech Lead) · San Francisco, CA
20. Goodfire · 3 matching
    • Research Lead, Training · San Francisco, CA
    • Research Scientist · San Francisco, CA
    • Research Fellow · San Francisco, CA
21. Sesame AI · 2 matching
    • Research Scientist · San Francisco, CA
    • Research Engineer · San Francisco, CA
22. Prime Intellect · 4 matching
    • Research Engineer - RL Infrastructure · San Francisco, CA
    • Research Engineer - Reinforcement Learning · San Francisco, CA
    • Research Engineer - Distributed Training · San Francisco, CA
23. Distyl AI · 10 matching
    • Research Engineers, Post-Training · San Francisco, CA
    • Research Engineers, Agents · San Francisco, CA
    • Research Engineers, Data · San Francisco, CA
24. Armadin · 1 matching
    • Member of Technical Staff - Research · Palo Alto, CA
25. Mirendil · 4 matching
    • Member of Technical Staff, Post-Training, RL Environments · San Francisco, CA
    • Member of Technical Staff, Post-Training, RL · San Francisco, CA
    • Member of Technical Staff, Pretraining · San Francisco, CA

See all 185 AI research roles in San Francisco →