Anthropic jobs

Research Engineer role at Anthropic focused on domain scaling for Claude via RL training data strategy and vendor management. Responsibilities include task sourcing, reward design, data pipeline design, and generalization experiments across finance, healthcare, and legal domains. Requires experience with LLM fine-tuning, RL, and external vendor management; on-site or hybrid in San Francisco or NYC.

Staff Software Engineer role at Anthropic's Developer Productivity team (CI/CD focus) responsible for owning the build, test, merge, and deploy pipeline end-to-end. Responsibilities include designing CI topology, AI-assisted code review, deploy/release automation, test reliability, and cross-team leadership. Requires significant backend/infrastructure experience, Python and a statically-typed systems language (Go/Rust), CI/CD operations at scale, and shipping reliability. Located on-site in San Francisco or New York.

Staff Software Engineer role at Anthropic's Claude Code team focused on building and owning developer productivity infrastructure end-to-end, including container lifecycle, dependency provisioning, environment isolation, and pre-push validation systems. Requires significant backend/infrastructure experience, Python proficiency, hands-on container and Kubernetes expertise, and prior ownership of developer environments at scale. Located in San Francisco or New York on-site.

Platform Security Engineering role at Anthropic focused on OpenBMC-based management firmware for server infrastructure. Responsibilities include designing production firmware and manageability features for x86/Arm platforms, implementing DMTF standards, and hardening against sophisticated adversaries. Requires 8+ years systems security experience with 5+ years firmware/hardware security focus, strong C/C++/Python, OpenBMC/BMC hands-on experience, and deep Linux/Yocto expertise. Located on-site in San Francisco, New York, or Seattle.

Software Engineer role building identity verification, access control, and fraud detection infrastructure for Anthropic's Claude API. Responsibilities include KYC/KYB systems, access management, misuse detection, account takeover remediation, and integration with third-party vendors. Requires Python, SQL, and backend production experience; 6+ years preferred. Remote-first with offices in SF, NYC, Seattle.