Member of Technical Staff, Post-Training

Tech Stack

Responsibilities

• Design post-training systems and methodologies for frontier models, including supervised fine-tuning, reinforcement learning, preference optimization, and reward modeling
• Translate open-ended research or partner needs into clear hypotheses, experiments, evaluation plans, and production-quality implementations
• Build and improve evaluation frameworks, benchmarks, training environments, data-processing pipelines, and quality-control systems
• Partner directly with AI researchers and domain experts to develop high-signal data, feedback, and evaluation methods
• Identify repeatable patterns across engagements and productize them into reusable software and platforms

Soft Skills

Benefits

• 401k
• Commuter Benefits
• Dental
• Equity
• Flexible PTO
• Gym/Wellness
• Health Insurance
• Learning Budget
• Parental Leave
• Vision

Culture

Requirements