Staff+ Software Engineer (Claude App Infrastructure)

Join Anthropic, a leading AI safety and research company, as a Staff+ Software Engineer. You will be part of the Claude App Infrastructure team, responsible for the reliability, experience, and capabilities of <claude.ai>. Your work will involve designing and building sandboxed compute environments, state management systems, authentication and authorization frameworks, and observability and debugging tools. You will collaborate closely with product and research teams to define and ship new features.

• Concevoir et construire des environnements de calcul isolés où Claude peut exécuter du code en toute sécurité, accéder à des outils et interagir avec des services externes.
• Développer des systèmes de gestion d'état pour des tâches d'agent de longue durée, en gérant les points de contrôle, la récupération et la reprise après des échecs.
• Créer des outils d'observabilité et de débogage pour l'exécution des agents, afin de comprendre ce que Claude a fait, pourquoi et comment l'améliorer.
• Comfortable building Cloud Native infrastructure on GCP, AWS, or Azure
• Want to work on problems that don't have existing playbooks
• Care deeply about security, isolation, and building systems that fail safely
• Have 10+ years of experience building distributed systems, infrastructure, or platform services at the hyper scale
• Are comfortable with ambiguity—this is greenfield work, and you'll help define the architecture
• Have experience with containers, sandboxing, or secure execution environments (e.g., gVisor, Firecracker, V8 isolates)
• Write clean, maintainable code in Python, Go, Rust, or similar
• Background in security engineering, sandboxing, or isolation technologies
• We require at least a Bachelor's degree in a related field or equivalent experience
• Low-level systems experience (Linux internals, eBPF, container runtimes)
• Experience with state machines, checkpointing, or durable execution patterns
• Familiarity with workflow orchestration systems (Temporal, Airflow, Step Functions)
• Experience building multi-tenant execution platforms or serverless infrastructure
• We encourage you to apply even if you do not believe you meet every single qualification