What this interview will probe
Staff Infrastructure Engineers build and scale the clusters that train Claude and the production systems that serve it reliably to millions of users, solving novel scaling challenges few organizations face. They lead design of large training and serving infrastructure, balancing reliability, cost, and developer velocity. A technical interview would probe large-scale distributed systems design (fault tolerance, scheduling, storage), reasoning about failure modes in a multi-thousand-node GPU cluster, and tradeoffs in building platforms that let researchers iterate quickly without sacrificing production stability.
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