Security Engineer, Offensive Security at Anthropic

Role overview

Anthropic seeks an Offensive Security Engineer to test its cloud infrastructure, endpoints and bare-metal systems against advanced attack scenarios. The role also contributes to AI-assisted security testing and communicates practical risks to engineering leadership.

Responsibilities

• Lead red and purple team exercises across cloud, endpoint and bare-metal environments.
• Penetration-test high-value deployments and investigate AI-specific attack scenarios.
• Contribute to AI-assisted security testing tools and workflows.
• Present attack findings to technical and executive audiences and turn them into actionable risk priorities.

Qualifications

• At least five years of hands-on red teaming and offensive security experience.
• Deep expertise in at least two of macOS, Linux, cloud platforms, Kubernetes or CI/CD security.
• Engineering ability in Python, Go or a similar language, plus experience chaining vulnerabilities.
• Ability to explain findings clearly and work closely with defensive security teams.

Technology in this role

• Python: Python AWS Azure GCP Kubernetes Linux .
• AWS: Python AWS Azure GCP Kubernetes Linux .
• Azure: Python AWS Azure GCP Kubernetes Linux .
• GCP: Python AWS Azure GCP Kubernetes Linux .
• Kubernetes: Python AWS Azure GCP Kubernetes Linux .
• Linux: Python AWS Azure GCP Kubernetes Linux .
• Go: Python AWS Azure GCP Kubernetes Linux .
• CI/CD: Deep expertise in at least two of macOS, Linux, cloud platforms, Kubernetes or CI/CD .
• SIEM: • Familiarity with detection engineering and SIEM/EDR platforms from the defensive .

Role-specific candidate guide

Preparation notes based on the employer’s stated responsibilities and qualifications.

Understanding the scope. This Security Engineer, Offensive Security position at Anthropic is best assessed through the work described in the employer’s posting, rather than the title alone. The available role overview says: “Anthropic seeks an Offensive Security Engineer to test its cloud infrastructure, endpoints and bare-metal systems against advanced attack scenarios. The role also contributes to AI-assisted security testing and…” Read that statement together with the responsibilities below to understand the likely balance between delivery, coordination and technical decision-making. The role belongs to the security area, but that label is only a guide to the work; the employer’s own requirements remain decisive. Before applying, check the original listing for reporting lines, product or team assignment, employment terms and any details that may have changed since this copy was checked. Where this page says a fact is not specified, treat it as an open question rather than an implied promise.

What the responsibilities signal. The posting specifically names “Lead red and purple team exercises across cloud, endpoint and bare-metal environments.”; “Penetration-test high-value deployments and investigate AI-specific attack scenarios.”; “Contribute to AI-assisted security testing tools and workflows.”. For each duty, identify a project where you performed comparable work and be ready to describe the context, your own contribution, constraints, decisions, and measurable result. Explain how you moved from the initial need to implementation, review, release or operational follow-through, where those stages apply. If the work involved other teams or users, distinguish your decisions from the group’s contribution. Avoid presenting a technology keyword as proof by itself: connect it to the problem you solved, the scale or complexity involved, and what changed after your work. The source may contain additional duties; review it directly before preparing your application.

How to read the requirements. The listed qualifications include “At least five years of hands-on red teaming and offensive security experience.”; “Deep expertise in at least two of macOS, Linux, cloud platforms, Kubernetes or CI/CD security.”; “Engineering ability in Python, Go or a similar language, plus experience chaining vulnerabilities.”. Mark each requirement as demonstrated, adjacent experience or a genuine gap, then use a concise example for the first two categories. A strong example explains what you personally owned, how you made trade-offs, how you validated the result and what you learned. If the posting specifies years of experience, language ability, certifications, location or eligibility, address those facts plainly in your CV or application rather than relying on the employer to infer them. Do not claim a qualification from exposure alone. For a requirement you do not meet, describe relevant transferable experience accurately and ask the recruiter whether it is mandatory.

Technology and working evidence. The technology terms associated with this listing are Python, AWS, Azure, GCP, Kubernetes, Linux, Go. Treat this as a set of posting-derived signals, not a guarantee that every tool is used daily or that the list is complete. For each term relevant to your experience, prepare one concrete example: the system or workflow, the part you owned, the alternatives considered, and how you tested reliability, security, performance or usability as appropriate. If you have not used a named tool, explain the closest related system you have worked with and how you would ramp up; do not relabel that experience as direct production use. If the source describes technologies beyond this list, prioritize its exact wording.

Evidence to put in the application. Tailor.

Benefits

• The posting lists vacation and parental leave, flexible working hours and optional equity donation matching.
• Anthropic states that staff generally spend at least 25% of their time in an office; some roles require more. Check the posting for this role’s location and travel conditions.

About Anthropic

Anthropic develops AI systems with a focus on reliability, interpretability, steerability and safety.

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