Senior Staff Software Engineer, API
Leads technical strategy and execution for Claude API platform, driving multi-year roadmap across core, capabilities, knowledge, distributability, and agents teams. Requires 12+ years experience in distributed systems and API architecture.
About the job
Responsibilities
- Define and drive multi-year technical strategy for the Claude API, setting direction across API Core, Capabilities, Knowledge, Distributability, and Agents.
- Identify and personally lead the highest-complexity, highest-impact engineering initiatives spanning multiple teams.
- Serve as the primary technical decision-maker for major architectural decisions with org-wide scope.
- Partner with Research to evaluate and integrate frontier capabilities; work with Inference and Platform for reliable delivery at scale; collaborate with Infrastructure and Safeguards for reliability, security, and responsible deployment.
- Mentor and develop Staff-level engineers across the org.
- Drive alignment across Product, GTM, Safety, and beyond while proactively identifying and addressing systemic technical risks.
You may be a good fit if you:
- Have 12+ years of engineering experience with a clear track record operating at Staff or Senior Staff level.
- Have demonstrably shaped technical strategy for large-scale API or distributed systems platforms.
- Drive the highest-leverage technical outcomes without formal authority—you lead through influence, quality of thinking, and trust.
- Have deep expertise in distributed systems and API architecture, and are effective writing design docs, making architectural calls, and coding in critical paths.
- Are highly effective across org boundaries—you build trust with Research, Inference, Infrastructure, Safeguards, and business stakeholders alike.
- Bring strong product instincts and a craftsperson's approach to API design; you communicate clearly with both technical and non-technical audiences.
Technical Stack
- Languages: Python, TypeScript
- Frameworks: FastAPI, React
- Infrastructure: GCP, Kubernetes, Cloud Run, AWS, Azure
- Databases: PostgreSQL (AlloyDB), Vector Stores, Firestore
- Tools: Feature Flagging, Prometheus, Grafana, Datadog
Skills
Python, TypeScript, FastAPI, React, GCP, Kubernetes, Cloud Run, AWS, Azure, Postgres
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