Member of Technical Staff (Models)

As a Member of Technical Staff on Models, you'll own the post-training loop that improves the performance of our AI Employees. You will be defining how we train models to do mission critical work in the real world.

• Have trained or fine-tuned models and shipped the result into a product
• Have hands-on experience with SFT, preference optimization, or RLHF
• Can read traces and tell whether a metric measures the thing that matters
• Have strong software engineering fundamentals alongside ML depth
• Want to work in person in San Francisco

Even better

• You've adapted open-weight models to a specialized domain
• You've built training data or evaluation infrastructure
• You contribute to open source projects

• Post-training and fine-tuning
• Turning agent traces and expert feedback into training data
• Reward modeling and graders for non-verifiable outcomes
• Distillation into smaller, faster, cheaper models
• Designing and running training experiments