Full-time

Research Engineer, Production Model Post Training Zürich, CH

Posted by Anthropic • Zürich, Zürich, Switzerland

📍 Zürich, Zürich 🕒 March 01, 2026

About the Role

Research Engineer, Production Model Post Training

About Anthropic

Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for users and for society. Our team is a growing group of researchers, engineers, policy experts, and business leaders building beneficial AI systems.

About the role

Anthropic's production models undergo post-training processes to enhance capabilities, alignment, and safety. As a Research Engineer on the Post-Training team, you will train base models through the post-training stack to deliver production Claude models that users interact with.

You’ll work at the intersection of research and production engineering, implementing, scaling, and improving post-training techniques such as Constitutional AI, RLHF, and other alignment methodologies. Your work will impact the quality, safety, and capabilities of production models.

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