Research Engineer, Production Model Post-Training
Anthropic · Zürich, Switzerland
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Job posting
Visa sponsorship: We do sponsor visas!
On job-boards.greenhouse.io/anthropic, read 26 Oct 2026.
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First seen 25 Oct 2026. We check every day and remove closed roles.
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About the role
About Anthropic Anthropic’s mission is to create reliable, interpretable, and steerable AI systems. We want AI to be safe and beneficial for our users and for society as a whole. Our team is a quickly growing group of committed researchers, engineers, policy experts, and business leaders working together to build beneficial AI systems.
About the role Anthropic's production models undergo sophisticated post-training processes to enhance their capabilities, alignment, and safety. As a Research Engineer on our Post-Training team, you'll train our base models through the complete post-training stack to deliver the production Claude models that users interact with.
You'll work at the intersection of cutting-edge research and production engineering, implementing, scaling, and improving post-training techniques like Constitutional AI, RLHF, and other alignment methodologies. Your work will directly impact the quality, safety, and capabilities of our production models. Note: For this role, we conduct all interviews in Python. This role may require responding to incidents on short-notice, including on weekends.
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Visa sponsorship: We do sponsor visas!
Competitive compensation and a relocation package for the Zurich area