This role requires expertise in low-level systems security and the ability to architect solutions that balance security requirements with the performance demands of training AI models across our massive fleet.

Responsibilities:

• Design and implement secure boot chains from firmware through OS initialization for diverse hardware platforms (CPUs, BMCs, switches, peripherals, and embedded microcontrollers)

• Architect attestation systems that provide cryptographic proof of system state from hardware root of trust through application layer

• Develop measured boot implementations and runtime integrity monitoring

• Create reference architectures and security requirements for bare-metal deployments

• Integrate security controls with infrastructure teams without impacting training performance

• Prototype and validate security mechanisms before production deployment

• Conduct firmware vulnerability assessments and penetration testing

• Build firmware analysis pipelines for continuous security monitoring

• Document security architectures and maintain threat models

• Collaborate with software and hardware vendors to ensure security capabilities meet our requirements

Who you are:

• 8+ years of experience in systems security, with at least 5 years focused on firmware and hardware security (firmware, bootloaders, and OS-level security)

• Hands-on experience with secure boot, measured boot, and attestation technologies (TPM, Intel TXT, AMD SEV, ARM TrustZone)

• Strong understanding of cryptographic protocols and hardware security modules

• Experience with UEFI/BIOS or embedded firmware security, bootloader hardening, and chain of trust implementation

• Proficiency in low-level programming (C, Rust, Assembly) and systems programming

• Knowledge of firmware vulnerability assessment and threat modeling

• Track record of designing security architectures for complex, distributed systems

• Experience with supply chain security

• Ability to work effectively across hardware and software boundaries

• Knowledge of NIST firmware security guidelines and hardware security frameworks

Strong candidates may also have:

• Experience with confidential computing technologies and hardware-based TEEs

• Knowledge of SLSA framework and software supply chain security standards

• Experience securing large-scale HPC or cloud infrastructure

• Contributions to open-source security projects (coreboot, CHIPSEC, etc.)

• Background in formal verification or security proof techniques

• Experience with silicon root of trust implementations

• Experience working with building foundational technical designs, operational leadership, and vendor collaboration

• Previous work with AI/ML infrastructure security

Annual Salary: $405,000-$485,000 USD

Logistics:

• Minimum education: Bachelor’s degree or an equivalent combination of education, training, and/or experience

• Required field of study: A field relevant to the role as demonstrated through coursework, training, or professional experience

• Minimum years of experience: Years of experience required will correlate with the internal job level requirements for the position

• Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.

• Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

Why work with us?

• Competitive compensation and benefits

• Optional equity donation matching

• Generous vacation and parental leave

• Flexible working hours

• Lovely office space in which to collaborate with colleagues

Guidance on Candidates' AI Usage: Learn about our policy for using AI in our application process

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As a Security Engineer, you will be the technical authority on how Saronic builds, ships, and runs secure software. You will lead secure code review, SAST, DAST, and fuzzing efforts, and define secure coding standards for Rust development including memory safety practices, safe FFI boundaries, and secure error handling.

You will conduct threat modeling for software systems and translate findings into actionable security requirements integrated into design reviews and sprint planning. You will drive vulnerability management for software dependencies, including tracking, prioritization, and remediation of vulnerabilities in third-party crates and libraries.

You will secure and harden NixOS configurations for vessel platforms and development infrastructure, leveraging Nix's reproducibility and declarative model for security enforcement. You will design system hardening profiles in NixOS including kernel hardening, service isolation, mandatory access controls, and minimal attack surface configurations.

You will define and enforce package management and dependency policies within the Nix ecosystem, ensuring build closures are auditable, reproducible, and free from unauthorized or vulnerable packages. You will architect secure system update and rollback mechanisms using NixOS capabilities, ensuring fleet-wide consistency and integrity.

You will design and implement security controls across the CI/CD pipeline including source integrity, build isolation, artifact signing, and deployment verification with build environments that are ephemeral, isolated, and hardened.

You will build and maintain software supply chain security practices aligned to SLSA framework principles, including provenance tracking, hermetic builds, signed attestations, and SBOM generation.

You will integrate security scanning (SAST, SCA, container scanning, secrets detection) into CI/CD pipelines as automated guardrails, and create self-service pipeline templates that enable teams to ship without bottlenecks.

You will design secure deployment patterns for vessel software updates, including secure delivery, integrity verification, and rollback capabilities.

You will implement runtime application security controls including logging, monitoring, and anomaly detection for deployed services.

You will define software and systems security standards, patterns, and reference architectures that engineering teams adopt as the default secure path.

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We're seeking a Platform Hardware Security Engineer to design and implement security architectures for bare-metal infrastructure. You'll work with teams across Anthropic to build firmware, bootloaders, operating systems, and attestation systems to ensure the integrity of our infrastructure from the ground up.

This role requires expertise in low-level systems security and the ability to architect solutions that balance security requirements with the performance demands of training AI models across our massive fleet.

What you'll do:

• Design and implement secure boot chains from firmware through OS initialization for diverse hardware platforms (CPUs, BMCs, switches, peripherals, and embedded microcontrollers)
• Architect attestation systems that provide cryptographic proof of system state from hardware root of trust through application layer
• Develop measured boot implementations and runtime integrity monitoring
• Create reference architectures and security requirements for bare-metal deployments
• Integrate security controls with infrastructure teams without impacting training performance
• Prototype and validate security mechanisms before production deployment
• Conduct firmware vulnerability assessments and penetration testing
• Build firmware analysis pipelines for continuous security monitoring
• Document security architectures and maintain threat models
• Collaborate with software and hardware vendors to ensure security capabilities meet our requirements

Who you are:

• 8+ years of experience in systems security, with at least 5 years focused on firmware and hardware security (firmware, bootloaders, and OS-level security)
• Hands-on experience with secure boot, measured boot, and attestation technologies (TPM, Intel TXT, AMD SEV, ARM TrustZone)
• Strong understanding of cryptographic protocols and hardware security modules
• Experience with UEFI/BIOS or embedded firmware security, bootloader hardening, and chain of trust implementation
• Proficiency in low-level programming (C, Rust, Assembly) and systems programming
• Knowledge of firmware vulnerability assessment and threat modeling
• Track record of designing security architectures for complex, distributed systems
• Experience with supply chain security
• Ability to work effectively across hardware and software boundaries
• Knowledge of NIST firmware security guidelines and hardware security frameworks

Strong candidates may also have:

• Experience with confidential computing technologies and hardware-based TEEs
• Knowledge of SLSA framework and software supply chain security standards
• Experience securing large-scale HPC or cloud infrastructure
• Contributions to open-source security projects (coreboot, CHIPSEC, etc.)
• Background in formal verification or security proof techniques
• Experience with silicon root of trust implementations
• Experience working with building foundational technical designs, operational leadership, and vendor collaboration
• Previous work with AI/ML infrastructure security

Logistics

• Education requirements: We require at least a Bachelor's degree in a related field or equivalent experience.
• Location-based hybrid policy: Currently, we expect all staff to be in one of our offices at least 25% of the time. However, some roles may require more time in our offices.
• Visa sponsorship: We do sponsor visas! However, we aren't able to successfully sponsor visas for every role and every candidate. But if we make you an offer, we will make every reasonable effort to get you a visa, and we retain an immigration lawyer to help with this.

We encourage you to apply even if you do not believe you meet every single qualification. Not all strong candidates will meet every single qualification as listed. Research shows that people who identify as being from underrepresented groups are more prone to experiencing imposter syndrome and doubting the strength of their candidacy, so we urge you not to exclude yourself prematurely and to submit an application if you're interested in this work.

Your safety matters to us. To protect yourself from potential scams, remember that Anthropic recruiters only contact you from @anthropic.com email addresses. In some cases, we may partner with vetted recruiting agencies who will identify themselves as working on behalf of Anthropic. Be cautious of emails from other domains. Legitimate Anthropic recruiters will never ask for money, fees, or banking information before your first day. If you're ever unsure about a communication, don't click any links—visit anthropic.com/careers directly for confirmed position openings.

How we're different

We believe that the highest-impact AI research will be big science. At Anthropic we work as a single cohesive team on just a few large-scale research efforts.

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