Software Engineer, Web Platform at Anthropic

Hybrid - San Francisco, CA

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Join Anthropic’s Web Platform team as a Software Engineer to build foundational infrastructure, shared components, APIs, and tooling that power our flagship product Claude.ai across web, mobile, desktop, and browser extensions. The role focuses on improving developer velocity, reliability, observability, and performance while collaborating closely with product teams to deliver reusable UI libraries and platform investments.

Salary

USD 320,000 - 405,000

Requirements

Skills

  • Strong practical skills in modern web technologies (React, TypeScript or comparable frameworks)
  • Experience designing or consuming APIs that serve frontend applications
  • Track record of building tools that improve developer productivity
  • Instincts around reliability, observability, and performance
  • Experience operationalizing reliability in production systems
  • Ability to thrive in fast-paced, collaborative environments
  • Willingness to pick up slack outside job description

Responsibilities

  • Improve developer velocity across the organization by reducing friction in build, deploy, and testing pipelines
  • Work on performance and reliability: identify and resolve latency issues, improve observability, and establish high standards
  • Design and build shared UI components, libraries, and abstractions for product teams
  • Partner closely with product engineering teams to understand needs and unblock them
  • Help maintain and evolve documentation and tooling for platform

Technologies

ReactTypeScriptAPI designBackend-for-frontend (BFF)CI/CDBuild systemsDeployment automationObservabilityMetrics, logging, tracing

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