Software Engineer, Web Platform

About the role

As a Software Engineer on Anthropic's Web Platform team, you'll build the foundational layer for Claude.ai, our flagship consumer product. This involves designing and shipping shared components, evolving backend-for-frontend APIs, and improving build, deploy, and observability systems.

Key responsibilities

• Improve developer velocity by reducing friction in build, deploy, and testing pipelines
• Work on performance and reliability: identify and resolve latency issues, improve observability
• Design and build shared UI components, libraries, and abstractions for product teams
• Partner with product engineering teams to understand their needs and shape platform investments
• Maintain and evolve documentation and tooling for the platform

Minimum qualifications

• Strong practical skills in modern web technologies (React, TypeScript) and experience with APIs
• Track record of building things that make other engineers more productive
• Instincts around reliability, observability, and performance in production systems
• Experience working in fast-paced, collaborative environments

Preferred qualifications

• 5+ years of software engineering experience building shared platforms or infrastructure
• Experience with shared component libraries, design systems, or reusable UI infrastructure
• API design and client-server architecture patterns
• Performance optimization and latency reduction in production web applications
• CI/CD, build systems, and deployment automation
• Observability and monitoring

The annual compensation range for this role is $320,000-$405,000 USD.