Skip to content

Skills · Train models

Reinforcement learning

Course coming soon

Policies, rewards and the algorithms that train reasoning and agentic models.

Mentioned in 154 of 339 recorded research roles (45%) and 231 of 1,827 technical roles (13%), in this recorded board.

Learn it here

The course page has its planned syllabus and a sign-up, which tells us how many people want it.

Explore opportunities

Everything here that teaches it

1 piece. Pieces built around this skill come first in each list; the rest use it along the way.

Also in Train models: How language models work, Post-training and fine-tuning, RL environments and verifiers, Pretraining and scaling laws, Interpretability, Alignment research, Multimodal models.

Who asks for it

Recorded roles that mention it

231 recorded postings mention it. Here are the newest 60 research, fellowship, applied and ML-systems roles; the rest are on the role pages linked above. Each title opens the lab's own posting.

  1. Software Engineer, Staff: Applied AI, Science & Engineering ↗

    Anthropic · Applied AI and forward-deployed · PhD preferred · $405k to $485k base

  2. Staff Research Engineer, Multi-Agent Scaling ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  3. LLM Scientist, AI for Science ↗

    Mistral AI · Research scientists and engineers · No degree stated

  4. Research Engineer - Eval Platform ↗

    Mistral AI · Research scientists and engineers · Master's, PhD or equivalent

  5. Research Engineer, Inference Foundation ↗

    Mistral AI · Research scientists and engineers · No degree stated

  6. Senior Applied AI Engineer ↗

    CodeRabbit · Applied AI and forward-deployed · No degree stated · $200k to $300k base

  7. Research Engineer, ML Infrastructure ↗

    Cognition · Research scientists and engineers · PhD required

  8. Full Stack Engineer, ML Research Tools ↗

    Cursor (Anysphere) · ML systems and infrastructure · No degree stated

  9. Research Scientist ↗

    Cursor (Anysphere) · Research scientists and engineers · No degree stated

  10. Software Engineer, ML Infrastructure ↗

    Cursor (Anysphere) · ML systems and infrastructure · No degree stated

  11. Research Engineer ↗

    Greptile · Research scientists and engineers · PhD preferred · $180k to $280k base

  12. AI Research Engineer, Post-Training ↗

    Lovable · Research scientists and engineers · No degree stated

  13. Research Scientist, Asta ↗

    Allen Institute for AI (Ai2) · Research scientists and engineers · PhD required · $167k to $261k base

  14. Research Scientist, Robotics ↗

    Allen Institute for AI (Ai2) · Research scientists and engineers · PhD required · $167k to $261k base

  15. [Expression of Interest] Research Engineer / Scientist, Alignment - London ↗

    Anthropic · Research scientists and engineers · No degree stated

  16. Anthropic Fellows Program, ML Systems & Reinforcement Learning ↗

    Anthropic · Fellowships, residencies and internships · No degree stated

  17. Engineering Manager, Research Data Platform ↗

    Anthropic · ML systems and infrastructure · No degree stated · $405k to $850k base

  18. ML/Research Engineer, Safeguards ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $500k base

  19. Research Engineer / Performance Engineer, RL Distributed Systems ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  20. Research Engineer / Research Scientist, RL Frontiers ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  21. Research Engineer / Research Scientist, Tokens ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $500k base

  22. Research Engineer / Scientist, Alignment ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $500k base

  23. Research Engineer, Chip Design RL (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  24. Research Engineer, Code RL (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  25. Research Engineer, Computer Use ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  26. Research Engineer, Cybersecurity RL (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  27. Research Engineer, Cybersecurity RL (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated

  28. Research Engineer, Discovery ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $850k base

  29. Research Engineer, Knowledge Team ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $850k base

  30. Research Engineer, Machine Learning (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  31. Research Engineer, Machine Learning (Reinforcement Learning) ↗

    Anthropic · Research scientists and engineers · No degree stated

  32. Research Engineer, Machine Learning (RL Velocity) ↗

    Anthropic · Research scientists and engineers · No degree stated

  33. Research Engineer, Machine Learning (RL Velocity) ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  34. Research Engineer, Post-Training Model Evaluations ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  35. Research Engineer, Pretraining ↗

    Anthropic · Research scientists and engineers · Master's or PhD required

  36. Research Engineer, RL Engineering ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  37. Research Engineer, RL Scaling Science ↗

    Anthropic · Research scientists and engineers · No degree stated

  38. Research Engineer, Visual Knowledge Work ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $850k base

  39. Research Engineer/Research Scientist, Pre-training ↗

    Anthropic · Research scientists and engineers · Master's or PhD required · $350k to $850k base

  40. Staff Research Engineer, Discovery Team ↗

    Anthropic · Research scientists and engineers · No degree stated · $350k to $850k base

  41. Staff+ Research Engineer, RL Data Platform ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  42. Staff+ Research Scientist, Multi-Agent ↗

    Anthropic · Research scientists and engineers · No degree stated · $500k to $850k base

  43. Principal Research Engineer, Post-Training ↗

    Character.AI · Research scientists and engineers · PhD or equivalent experience · $275k to $400k base

  44. Research Engineer, AI Safety & Alignment ↗

    Character.AI · Research scientists and engineers · PhD or equivalent experience · $225k to $400k base

  45. Research Engineer, Post-Training (All Industry Levels) ↗

    Character.AI · Research scientists and engineers · PhD or equivalent experience · $225k to $400k base

  46. Member of Technical Staff - RL Environments ↗

    Cohere · Research scientists and engineers · No degree stated

  47. Member of Technical Staff, Integration/RL Team (Research Engineer) ↗

    Cohere · Research scientists and engineers · No degree stated

  48. Member of Technical Staff, Post-Training ↗

    Cohere · Research scientists and engineers · No degree stated

  49. Manager, Applied AI Engineering, DeepMind ↗

    Google DeepMind · Applied AI and forward-deployed · Bachelor's or equivalent

  50. Post-training Agentic Research Scientist, DeepMind ↗

    Google DeepMind · Research scientists and engineers · PhD or equivalent experience

  51. Research Developer, Frontier AI Incubation, DeepMind ↗

    Google DeepMind · Research scientists and engineers · Bachelor's or equivalent

  52. Research Engineer, Advancing Agent Quality, DeepMind ↗

    Google DeepMind · Research scientists and engineers · No degree stated

  53. Research Engineer, Cyber Gemini, DeepMind ↗

    Google DeepMind · Research scientists and engineers · Bachelor's or equivalent

  54. Research Engineer, Energy Grids, Sustainability, DeepMind ↗

    Google DeepMind · Research scientists and engineers · Bachelor's or equivalent

  55. Research Engineer, Tech Lead Manager, Frontier and AGI Security, DeepMind ↗

    Google DeepMind · Research scientists and engineers · PhD or equivalent experience

  56. Research Scientist, Agents, DeepMind ↗

    Google DeepMind · Research scientists and engineers · PhD or equivalent experience

  57. Research Scientist, AI Secure Code, DeepMind ↗

    Google DeepMind · Research scientists and engineers · PhD or equivalent experience

  58. Research Scientist, Gemini Agent Safety, DeepMind ↗

    Google DeepMind · Research scientists and engineers · PhD or equivalent experience