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Staff + Software Security Engineer, Secure Frameworks

AnthropicSan Francisco, CA | New York City, NY | Seattle, WASecurity
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Salary
$32K — $485K USD
Job type
Full-time
Experience
Senior · 8+ yrs
Posted
5 Oct 2026
Status
Open · checked 7d ago

About this role

Anthropic seeks a Staff Software Security Engineer for the Secure Frameworks team located in San Francisco, New York City, and Seattle. This position is ideal for an experienced security professional interested in designing core infrastructure foundations and shaping AI safety.

Role Overview

Anthropic is hiring a Staff + Software Security Engineer for the Secure Frameworks group within the Security Engineering organization. The role involves designing, building, and operating shared security libraries and frameworks that protect the entire company fleet. The work focuses heavily on greenfield infrastructure where the practitioner defines architecture from threat model through production, handle on-call duties, and drive company-wide adoption.

Key Responsibilities

Build critical security foundations including cryptographic frameworks, mTLS infrastructure, secure serialization, and authorization systems to prevent entire classes of vulnerabilities.
Partner with product, research, infrastructure, and other security teams to integrate frameworks smoothly with lower-layer controls.
Scope, design, and build security services and libraries end-to-end, maintain them in production, and solve ambiguous technical problems independently.
Build and operate the zero-trust access gateway that secures internal services.
Design and roll out authorization frameworks so services enforce least privilege consistently.
Own cryptographic frameworks and libraries while mentoring engineers and growing security engineering culture.

Requirements

Eight or more years of software engineering experience building security-relevant systems in production, including leading complex initiatives independently.
Strong programming skills in Go, Rust, or Python.
Deep understanding of authentication and authorization systems such as OAuth 2.0, OIDC, JWTs, service-to-service auth, and policy-based access control.
Hands-on experience with PKI, X.509, mTLS, and workload identity.
Working knowledge of applied cryptography, including choosing and composing primitives correctly and key management.
Experience shipping and operating high-reliability services on Kubernetes across cloud and on-prem environments with on-call responsibilities.
Track record of bringing clarity to ambiguous technical problems and driving them to resolution across teams.
Bachelor’s degree in a relevant field or an equivalent combination of education, training, and experience.

Nice to Have

Experience building security frameworks or libraries adopted across an engineering organization.
Experience building or operating a zero-trust or BeyondCorp-style access gateway or identity-aware proxy.
Experience migrating a fleet to mTLS at scale, including certificate issuance and staged enforcement.
Contributions to open-source cryptographic libraries.
Design experience with policy languages or relationship-based authorization models.
Familiarity with machine learning infrastructure for training and inference serving.

Skills and Tools

Go
Rust
Python
Kubernetes
OAuth 2.0 / OIDC
JWT
PKI
X.509
mTLS

Salary and Benefits

Annual compensation ranging from $32,000 to $485,000 USD.
Competitive compensation and benefits package.
Optional equity donation matching.
Generous vacation and parental leave.
Flexible working hours.
Office space with a location-based hybrid policy requiring staff to be in an office at least 25% of the time.

About the Company

Anthropic operates as a public benefit corporation focused on building reliable, interpretable, and steerable AI systems. The organization brings together researchers, engineers, policy experts, and business leaders to ensure AI remains safe and beneficial for society. The workplace emphasizes collaborative big science and empirical research methodologies.

How to Apply

Interested candidates should visit the official Anthropic careers page to submit an application.

Skills and tech stack

GoRustPythonKubernetesOAuth 2.0OIDCJWTPKIX.509mTLS

Questions candidates ask

Where is the position located?

The role is available in San Francisco, CA, New York City, NY, and Seattle, WA, with a location-based hybrid policy requiring at least 25% time in the office.

What programming languages are required?

Candidates must have strong programming skills in Go, Rust, or Python.

How many years of experience are required?

The role requires 8+ years of software engineering experience building security-relevant systems in production.

Does Anthropic offer visa sponsorship?

Yes, Anthropic sponsors visas for eligible candidates and retains an immigration lawyer to assist with the process.

What is the salary range for this role?

The annual salary range is $32,000 to $485,000 USD.

Ready to apply?

The application is on the official Anthropic careers page.

Apply on company site