Staff+ Application Security Engineer (M&A)

Location: Hybrid (Must be based in the US). Office locations: San Francisco, CA; Seattle, WA; New York City, NY. Expectation to be in-office at least 25% of the time.

Salary: $320,000 - $485,000 USD

Company

Anthropic is a public benefit corporation focused on creating reliable, interpretable, and steerable AI systems.

What you will do

• Lead pre-close security due diligence for acquisitions, including threat modeling and risk readouts for leadership.
• Drive post-close integration by implementing SAST/DAST coverage and onboarding acquired assets to vulnerability management systems.
• Formalize the M&A security playbook, including risk-scoring models and diligence runbooks.
• Develop Claude-powered tooling to automate repetitive parts of the diligence and integration process.
• Collaborate with corporate development, legal, and engineering stakeholders across different organizations.
• Contribute to core AppSec projects and the team's operational on-run rotation, including incident response and bug bounty.

Requirements

• Hands-on experience in application and infrastructure security within cloud and containerized environments.
• Ability to rapidly assess unfamiliar architectures and produce prioritized risk assessments for non-security audiences.
• Production-quality coding skills in Python, Go, Rust, or TypeScript.
• Practical threat-modeling and vulnerability-identification experience.
• Ability to operate with high autonomy and handle confidential, time-sensitive context.
• Must be based in the US (San Francisco, Seattle, or New York City).

Nice to have

• 7+ years of experience in AppSec, security consulting, or architecture.
• Prior experience with M&A security due diligence or third-party assessments.
• Experience scaling SAST/DAST, bug bounty, or vulnerability management.
• Track record of building security automation tooling.
• Familiarity with using LLMs as a core part of a security workflow.

Culture & Benefits

• Competitive compensation and benefits with optional equity donation matching.
• Generous vacation and parental leave.
• Flexible working hours and collaborative office spaces.
• Visa sponsorship availability.
• High-impact research environment focusing on steerable and trustworthy AI.