Performance Engineer, Inference Systems

Anthropic · San Francisco, CA | New York City, NY | Seattle

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Company
Anthropic
Location
San Francisco, CA | New York City, NY | Seattle
Salary
$350,000 — $850,000
Posted
May 20, 2026

About this job

About the Role Anthropic's inference fleet serves Claude to millions of users across our own products and the world's largest cloud platforms. The stack that makes this possible is deep and tightly coupled: accelerator kernels, model servers, distributed routing, autoscaling, capacity management. Every layer affects the others, often in ways that are hard to see in isolation. The Inference System Dynamics team is responsible for understanding that whole system and holding it to a high bar across four dimensions: throughput, latency, reliability, and correctness. We measure how the fleet performs against its theoretical performance frontier, run cross-layer investigations to explain the gaps, and own the correctness checks that make sure Claude's outputs are right, not just fast, across…

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