Senior AI AppSec Engineer — Claude-Driven Security

Anthropic; San Francisco (CA); Hybrid; USD 320,000 - 485,000; Full time

Benefits offered by this job

Equity donation matching

Generous vacation

Parental leave

Flexible working hours

Office space

Job summary

Anthropic’s Application Security team secures the systems that build, serve, and Claude. Engineers own end-to-end systems, from code analysis to vulnerability fixes, with the model assisting threat modeling and design reviews. Senior engineers shape production security for Claude-related tooling and guidance.

The role emphasizes hands-on threat modeling, security automation, and close collaboration with product and research teams to keep Claude secure in production environments.

Qualifications

• Hands-on application and infrastructure security experience in cloud and containerized environments.
• Production-quality coding ability in Python, Go, Rust, or TypeScript.
• Practical threat-modeling and vulnerability-identification skills.
• Ability to operate with high autonomy and ambiguity.
• Clear technical communication with engineers and leadership.

Responsibilities

• Design, build, and operate Claude-powered security systems end-to-end.
• Lead secure design reviews and threat modeling for novel AI systems.
• Evolve and manage a public bug bounty program with automation for triage.
• Partner with Product, Infrastructure, and Research as security owner for launches.
• Share on-run rotation duties including bounty escalations and incident response.

Skills

Cloud & containers

Python/Go/Rust/TypeScript

Threat modeling

Autonomy

Technical communication

Job description

Anthropic’s Application Security team secures the systems that build, serve, and Claude. Engineers own end-to-end systems, from code analysis to vulnerability fixes, with the model assisting threat modeling and design reviews. Senior engineers shape production security for Claude-related tooling and guidance.

The role emphasizes hands-on threat modeling, security automation, and close collaboration with product and research teams to keep Claude secure in production environments.