Hardware Security Architect, Principal

Own the hardware security architecture for Positron’s AI accelerator platform, ensuring protection of customer models, user data, firmware, intellectual property, and secure operation throughout the product lifecycle. This role spans architecture through production deployment., Silicon Security Architecture

• Define the overall silicon security architecture for Positron’s platform.
• Own secure boot, hardware root of trust, chain of trust, authenticated firmware, and measured boot.
• Own secure debug, secure manufacturing, fuse programming, key provisioning, and device identity.
• Own key ladders, anti-rollback protections, JTAG security, scan access control, and lifecycle states.

AI Asset Protection

• Protect customer models and weights through weight encryption and weight authentication.
• Secure data in motion via link encryption, PCIe security, CXL security, and on-chip fabric security.
• Own DRAM encryption, secure DMA, secure memory regions, and confidential computing techniques.

Threat Modeling & Security Reviews

• Perform architecture security reviews and develop attack models across the platform.
• Mitigate physical attacks, fault injection, side-channel attacks, replay attacks, firmware compromise, and supply-chain attacks.

Cross-Functional Partnership

• Partner with firmware, software, architecture, DFT, validation, manufacturing, and cloud security teams to embed security throughout the product lifecycle.

Industry Engagement

• Stay current with NIST, FIPS, CCA, RISC-V security, and Arm security standards, as well as emerging areas like post-quantum cryptography and confidential AI.

AI-Enabled Engineering

• Apply AI-assisted techniques for threat modeling, security verification, coverage analysis, and documentation.

• 12+ years of experience in hardware security architecture.
• Deep expertise in secure boot and hardware root of trust design.
• Strong cryptography and key management ability.
• Hands-on experience with secure manufacturing processes.
• A solid grasp of silicon bring-up in a security-critical context., * Experience with AI accelerator platforms.
• Familiarity with HSMs and TPMs.
• Expert-level proficiency in TEE, CCA, and Arm TrustZone architectures.
• Experience with confidential computing, PCIe IDE, and CXL IDE.

$200,000 - $300,000 a year - Full-time, Pulled from the full job description

• Health insurance
• 401(k) matching
• Vision insurance
• Dental insurance
• Unlimited paid time off
• Disability insurance
• Paid holidays, The base salary range for this role is $200,000 - $300,000.

Please note that the figures provided represent the base salary range only and do not include other elements of our total compensation package, equity, or comprehensive benefits.

At Positron AI, we value the unique expertise each candidate brings. While the range above reflects our typical expectation for the position, we reserve the flexibility to exceed this range for candidates whose specialized skills, significant experience, or unique qualifications fall outside the standard scope of the role. Final offers are determined based on a variety of factors, including internal equity, and individual impact.

Benefits & Perks

We want you to do your best work and feel confident that you and your family are taken care of. That means comprehensive coverage, real time to rest, and support for your future.

Health and wellness

• Fully company-paid medical, dental, and vision insurance for you and your dependents
• Company-paid life and disability coverage, with voluntary options to add more
• Supplemental hospital, critical illness, and accident coverage available

Time off and flexibility

• Unlimited paid time off, so you can truly unplug and recharge
• 13 paid company holidays
• Remote-first culture with a company-provided computer and home office setup

Compensation and future

• Competitive salary and equity
• 401(k) with company matching, eligible from day one