<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><strong>About the role</strong></h2> <p><a href="http://Claude.ai" target="_blank">Claude.ai</a> is Anthropic s flagship consumer product, spanning web, mobile, desktop, and browser extensions—and it s growing fast. The Web Platform team owns the foundational layer that makes all of this possible: the shared infrastructure, components, APIs, and tooling that let every other product team at Anthropic ship quickly, reliably, and with confidence.</p> <p>As a Software Engineer on this team, you ll be hands-on building the platform that other engineers depend on every day. This means designing and shipping shared components and design-system-level abstractions, evolving the backend-for-frontend (BFF) APIs that power our client applications, and improving the build, deploy, and observability systems that keep <a href="http://Claude.ai" target="_blank">Claude.ai</a> running smoothly across surfaces. Your work will directly shape how fast teams across Anthropic can innovate—and how stable their experiences are when they do.</p> <p>This is a great fit if you care deeply about developer experience and want your engineering work to have outsized leverage: instead of shipping one feature, you re building the tools and systems that make dozens of features possible.</p> <h2><strong>Key responsibilities</strong></h2> <ul> <li>Improve developer velocity across the organization by reducing friction in our build, deploy, and testing pipelines</li> <li>Work on performance and reliability: identify and resolve latency issues, improve observability, and help establish high standards that the rest of the platform team can build on</li> <li>Design and build shared UI components, libraries, and abstractions that product teams across Anthropic use to ship consistently and efficiently on web and mobile</li> <li>Partner closely with product engineering teams to understand their needs, unblock them when possible, and shape platform investments around where the most impact is</li> <li>Help maintain and evolve documentation and tooling that make the platform approachable for engineers joining or building on top of it</li> </ul> <h2><strong>Minimum qualifications</strong></h2> <ul> <li>Have strong practical skills in modern web technologies (React, TypeScript or comparable frameworks) and experience designing or consuming APIs that serve frontend applications</li> <li>Care about developer experience and have a track record of building things that make other engineers more productive</li> <li>Have solid instincts around reliability, observability, and performance—and enjoy operationalizing those instincts in production systems</li> <li>Thrive in fast-paced, collaborative environments and enjoy working closely with cross-functional partners</li> <li>Pick up slack, even if it goes outside your job description</li> </ul> <h2><strong>Preferred qualifications</strong></h2> <ul> <li>Have 5+ years of software engineering experience, with significant time spent building shared platforms, developer tools, or infrastructure that other engineers rely on</li> <li>Building shared component libraries, design systems or reusable UI infrastructure</li> <li>API design and and client-server architecture patterns that balance flexibility with consistency across client platforms</li> <li>Performance optimization and latency reduction in production web applications</li> <li>CI/CD, build systems, and/or deployment automation</li> <li>Observability and monitoring (e.g. metrics, logging, tracing)</li> </ul><div class="content-pa

Staff Software Engineer, Web Platform

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