Staff+ Software Engineer, Claude App Infrastructure

Job summary

Responsibilities

Claude App Infrastructure owns the reliability, experience, and agentic capabilities of claude.ai. We're the platform team for Anthropic's flagship consumer product, responsible for the serving architecture that keeps Claude available at scale, the conversation experience, and the infrastructure…

• Design and build sandboxed compute environments where Claude can safely execute code, access tools, and interact with external services
• Build state management systems for long-running agent tasks, handling checkpoints, recovery, and resumption across failures
• Develop authentication and authorization frameworks for delegated access, so Claude can act on behalf of users securely
• Create observability and debugging tools for agent execution, so we understand what Claude did, why, and how to make it better
• Partner closely with product and research teams to define what's possible and ship it

What they're looking for

• Experience building distributed systems, infrastructure, or platform services at scale
• Comfort building cloud native infrastructure on GCP, AWS, or Azure
• Experience with containers, sandboxing, or secure execution environments (e.g., gVisor, Firecracker, V8 isolates)
• Write clean, maintainable code in Python, Go, Rust, or a similar language
• Care about security, isolation, and building systems that fail safely

Tech stack

• GCP
• AWS
• Azure
• Python
• Go
• Rust
• Airflow