Staff + Sr. Software Engineer

Responsibilities

• Design, build, and own backend services and infrastructure serving Claude across multiple cloud service providers.
• Collaborate with internal engineering teams and cloud partners to launch serving stacks, resolve operational issues, and influence provider roadmaps.
• Build validation and deployment pipelines that reliably ship new model versions across cloud platforms.
• Develop cross-cloud interfaces and tooling abstractions to reduce platform complexity and optimize inference costs.
• Contribute to capacity planning, autoscaling, workload routing, and geographic resource allocation.
• Analyze observability data to identify performance bottlenecks, cost anomalies, and production regressions, then drive remediation.

Requirements

• Significant software engineering experience building or operating high-performance, large-scale distributed systems serving millions of users.
• Experience operating services on at least one major cloud platform such as AWS, GCP, or Azure, with exposure to Kubernetes, infrastructure as code, or container orchestration.
• Curiosity about LLM serving; prior inference or machine learning experience is not required.
• Experience collaborating with internal teams and external partners to align goals and deliver impact.
• Ability to learn new technologies, hardware platforms, and cloud provider ecosystems quickly.
• High autonomy and ownership of problems from end to end.
• Preferred: experience scaling infrastructure or products across multiple cloud providers and navigating networking, security, privacy, billing, and managed services.
• Preferred: hands-on experience with capacity management, cost optimization, or resource planning across heterogeneous environments.
• Preferred: understanding of multi-region deployments, geographic routing, and global traffic management.
• Preferred: proficiency in Python or Rust.

Benefits

• Hybrid policy requiring staff to work from an office at least 25% of the time, with some roles requiring more office time.
• Competitive benefits including flexible working hours, generous vacation and parental leave, optional equity donation matching, and office workspace.
• Visa sponsorship is available with reasonable efforts made after an offer, subject to role and candidate limitations.
• Anthropic provides immigration-lawyer support for visa matters.