Offensive Security Engineer: Red Team & Cloud

Anthropic; Seattle (WA); On-site; USD 300,000 - 320,000; Full time

Job summary

Anthropic, based in Seattle, seeks a senior security engineer to lead red and purple team activities across cloud, endpoints, and bare metal deployments. You will conduct targeted penetration tests on high-value deployments and help build AI‑assisted security tooling in collaboration with security and engineering teams.

The role requires 5+ years in red teaming, deep cloud/OS security expertise, and strong Python/Go skills to translate findings into actionable risk insights and security roadmaps

Qualifications

• 5+ years of hands-on experience in red teaming and offensive security operations.
• Deep expertise in at least two of: macOS security, Linux Security, Cloud security (GCP/AWS/Azure), Kubernetes, CI/CD pipelines.
• Track record of discovering novel attack vectors and chaining vulnerabilities creatively.
• Experience conducting adversarial simulations against well-defended environments.
• Strong engineering skills (Python, Go, or similar).
• Ability to write clear findings that drive action, helping teams understand risk and prioritize fixes.
• Collaborative approach, working in close collaboration with the blue team.

Responsibilities

• Conduct red and purple team engagements simulating advanced threat actors across our cloud infrastructure, endpoints and bare metal deployments.
• Penetration test specific, high value deployments.
• Contribute to AI-assisted security testing tooling and workflows.
• Work cross functionally with other security and engineering teams, particularly on AI-specific attack scenarios.
• Document and present findings to technical and executive audiences, translating attack narratives into actionable risk insights that inform security roadmaps.

Skills

Red Teaming

Cloud security

Kubernetes

Python

Go

Threat modeling

Adversarial simulations

Education

Bachelor's degree

Tools

SIEM/EDR

Job description

Anthropic, based in Seattle, seeks a senior security engineer to lead red and purple team activities across cloud, endpoints, and bare metal deployments. You will conduct targeted penetration tests on high-value deployments and help build AI‑assisted security tooling in collaboration with security and engineering teams.

The role requires 5+ years in red teaming, deep cloud/OS security expertise, and strong Python/Go skills to translate findings into actionable risk insights and security roadmaps