Staff + Sr. Software Engineer, Cloud Inference at Anthropic

Hybrid - San Francisco, CA

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Staff + Sr. Software Engineer, Cloud Inference at Anthropic. Join the Cloud Inference team responsible for scaling and optimizing Claude across major cloud platforms, designing backend services, capacity planning, and ensuring reliable, cost-effective inference for millions of users.

Salary

USD 320,000 - 485,000

Requirements

Skills

  • Significant software engineering experience, with a strong background in high-performance, large-scale distributed systems serving millions of users
  • Experience building or operating services on at least one major cloud platform (AWS, GCP, or Azure), with exposure to Kubernetes, Infrastructure as Code, or container orchestration
  • Curiosity about LLM serving; prior inference or ML experience is not required
  • Ability to thrive in cross-functional collaboration with internal teams and external partners
  • Experience working with external partners to align goals and deliver impact
  • Fast learner who can quickly ramp up on new technologies, hardware platforms, and provider ecosystems
  • Highly autonomous and takes ownership of problems end-to-end, including work that falls outside the job description
  • Direct experience working with CSPs to scale infrastructure or products across multiple platforms, navigating differences in networking, security, privacy, billing, and managed service offerings
  • Hands-on experience with capacity management, cost optimization, or resource planning at scale across heterogeneous environments
  • Solid understanding of multi-region deployments, geographic routing, and global traffic management
  • Proficiency in Python or Rust

Responsibilities

  • Design, build, and own backend services and infrastructure that serve Claude across multiple CSPs, accounting for differences in compute hardware, networking, APIs, and operational models
  • Work cross-functionally with internal inference, product API, systems, and security teams, and with CSP partners to stand up the full serving stack on new cloud platforms, resolve operational issues, and influence provider roadmaps
  • Build and evolve CI/CD automation systems, including validation and deployment pipelines, that reliably ship new model versions to millions of users across cloud platforms without regressions
  • Design interfaces and tooling abstractions across CSPs that enable cost-effective inference management, scale across providers, and reduce per-platform complexity
  • Contribute to capacity planning, autoscaling, and workload routing strategies that match supply with demand and direct requests to the most cost-effective accelerator and region
  • Analyze observability data across providers to identify performance bottlenecks, cost anomalies, and regressions, and drive remediation based on real-world production workloads

Technologies

AWSGCPAzureKubernetesInfrastructure as CodeContainer orchestrationPythonRustCI/CD automationCapacity planningAutoscalingObservability tools

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