Staff + Sr. Software Engineer, Scaling

<div class="content-intro"><h2><strong>About Anthropic</strong></h2> <p>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.</p></div><h2 class="heading">About the role</h2> <p>Our Inference team is responsible for building and scaling the critical systems that serve Claude to millions of users worldwide. We bring Claude to life by serving our models via the industry’s largest compute-agnostic inference deployments. We are responsible for the entire stack from intelligent request routing to fleet-wide orchestration across diverse AI accelerators.</p> <p>The team has a dual mandate: <strong>maximizing compute efficiency</strong> to reliably serve our explosive customer growth, while <strong>enabling breakthrough research</strong> by giving our scientists the high-performance inference infrastructure they need to develop next-generation models. We tackle complex, distributed systems challenges across multiple accelerator families and emerging AI hardware running in multiple cloud platforms.</p> <p>Inference systems are highly performance sensitive distributed systems. Inference serves hundreds of thousands of customers every day, and the size & span of the inference fleet requires sophisticated routing, scaling, and networking systems.</p> <h2>Key responsibilities</h2> <ul> <li>Design, build, and maintain the distributed systems that serve Claude to millions of users worldwide</li> <li>Develop resilient, flexible systems that adapt in real time to real world events</li> <li>Develop intelligent request routing, load balancing, and traffic management systems across thousands of accelerators and multiple cloud providers</li> <li>Maximize compute efficiency and optimize cost across the fleet by autoscaling and orchestrating production, research, and experimental workloads across multiple cloud providers</li> <li>Build and operate production-grade deployment pipelines for releasing new models to users</li> <li>Provide high-performance inference infrastructure that enables researchers to develop next-generation models</li> <li>Integrate new AI accelerator platforms and support inference for new model architectures</li> </ul> <h2>Minimum qualifications</h2> <ul> <li>Significant software engineering experience, particularly with distributed systems</li> <li>Results-oriented, with a bias towards flexibility and impact</li> <li>Willingness to pick up slack, even if it goes outside your job description</li> <li>Desire to learn more about machine learning systems and infrastructure</li> <li>Thrive in environments where technical excellence directly drives both business results and research breakthroughs</li> <li>Care about the societal impacts of your work</li> </ul> <h2>Preferred qualifications</h2> <ul> <li>Experience with high-performance, large-scale distributed systems</li> <li>Experience implementing and deploying machine learning systems at scale</li> <li>Experience with load balancing, request routing, or traffic management systems</li> <li>Familiarity with LLM inference optimization, batching, and caching strategies</li> <li>Experience with Kubernetes and cloud infrastructure (AWS, GCP, Azure)</li> <li>Proficiency in Python or Rust</li> </ul> <h2>Representative projects</h2> <ul> <li>Designing intelligent routing algorithms that optimize request distribution across many accelerators in different environments</li> <li>Autoscaling our compute fleet to dynamically match supply with demand across production, research, and experimental workloads</li> <li>Building production-grade deployment pipelines for releasing new models to millions of users reliably</li> <li>Contributing to new inference features</li> <li>Supporting inference for new model architectures</li> <li>Analyzing observability data to tune performance based on real-world production workloads</li> <li>Managing multi-region deployments and geographic routing for global customers</li> </ul><div class="content-pay-transparency"><div class="pay-input"><div class="description"><p>The annual compensation range for this role is listed below. </p> <p>For sales roles, the range provided is the role’s On Target Earnings ("OTE") range, meaning that the range includes both the sales commissions/sales bonuses target and annual base salary for the role.</p></div><div class="title">Annual Salary:</div><div class="pay-range"><span>$320,000</span><span class="divider">—</span><span>$485,000 USD</span></div></div></div><div class="content-conclusion"><h2><strong>Logistics</strong></h2> <p><strong>Minimum education: </strong>Bachelor’s degree or an equivalent combination of education, training, and/or experience</p> <p><strong>Required field of study: </strong>A field relevant to the role as demonstrated through coursework, training, or professional experience</p> <p><strong>Minimum years of experience: </strong>Years of experience required will correlate with the internal job level requirements for the position</p> <p><stron