Senior Software Security Engineer

Details

Anthropic's Security Engineering team protects the company's AI systems and maintains user and societal trust. The team defines authentication architecture for training infrastructure, designs cryptographic foundations for protecting model weights and training data, and develops security programs that help engineers build and ship secure software.

The role will support one or more areas including identity and secrets management, developer security and supply chain, infrastructure security, and secure frameworks.

Responsibilities

• Build and maintain identity and secrets management systems, including credential issuance, rotation, and workload authentication across multi-cloud environments.
• Contribute to cluster security controls, including RBAC policies, namespace isolation, workload identity, and pod security.
• Implement and maintain cloud security controls, including IAM, network segmentation, VPC architecture, and encryption across multi-cloud and on-premises environments.
• Design and implement secure development frameworks and libraries that make secure coding easier for engineering teams, including service-to-service authentication, serialization libraries, and tool proxies.
• Harden CI/CD pipelines against supply chain attacks through isolated build environments, signed attestations, dependency verification, and automated policy enforcement.
• Identify and remediate security gaps through code review, threat modeling, and hands-on debugging.
• Contribute to continuous cloud security posture management using infrastructure-as-code scanning, misconfiguration detection, and automated remediation.

Requirements

• At least 5 years of software engineering experience implementing and maintaining security-relevant systems in production.
• Bachelor's degree in Computer Science or equivalent industry experience.
• Strong programming skills in Python or at least one systems language such as Go or Rust.
• Experience contributing to cloud security controls.
• Track record of taking ownership of problems end to end, from identifying the issue to shipping and monitoring the fix.
• Clear communication skills and the ability to collaborate across engineering teams.
• Low ego and high empathy, with a genuine interest in helping teammates succeed.
• Passion for AI safety and the role of security engineering in building trustworthy AI systems.

Preferred Qualifications

• Contributions to developer security tooling, including SAST, dependency scanning, or secure build infrastructure.
• Familiarity with Kubernetes security primitives, including RBAC, namespaces, network policies, and admission controllers.
• Experience with cloud security posture management tooling, infrastructure-as-code security scanning, or automated remediation.
• Experience with network security and isolation techniques, including east-west controls, traffic inspection, and cloud network policy.
• Experience with eBPF for security monitoring and enforcement, or with developing kernel security policies.
• Experience building secrets management or workload authentication systems, including familiarity with OAuth 2.0, OIDC, SAML, or SPIFFE/SPIRE.
• Background building or operating security systems in environments supporting research workflows and rapid iteration.

Compensation

The annual salary range is $320,000–$405,000 USD.

Benefits and Logistics

• Staff are expected to work from one of Anthropic's offices at least 25% of the time under the current location-based hybrid policy.
• Anthropic sponsors visas and makes reasonable efforts to obtain visas for successful candidates, with support from an immigration lawyer.
• Benefits include competitive compensation, optional equity donation matching, generous vacation and parental leave, flexible working hours, and office collaboration spaces.