Senior Research Engineer — Constitutional AI

About the Role

We're looking for a Senior Research Engineer to join our Constitutional AI team. You'll work at the frontier of AI safety research, developing techniques that make large language models more helpful, harmless, and honest.

What You'll Do

• Design and implement Constitutional AI training pipelines at scale
• Collaborate with researchers to translate safety ideas into production-grade systems
• Run large-scale experiments on frontier models (Claude family)
• Publish research and contribute to the broader AI safety community

Why This Role

You'll have direct impact on the safety properties of some of the world's most capable AI systems, working alongside world-class researchers in a highly collaborative environment.

• 5+ years of ML engineering experience
• Strong background in deep learning (PyTorch/JAX)
• Experience with RLHF, reward modeling, or preference learning
• PhD in ML, CS, or related field (or equivalent experience)
• Strong publication record preferred

• Competitive equity package
• $5,000/year learning & development budget
• Comprehensive health, dental, and vision
• Flexible remote work policy
• Catered meals and wellness stipend