Hardware Security Architect, Principal

Positron Corporation

8h • $200,000 - $300,000 • Remote

About The Position

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. Success in this role looks like a security architecture deployed across the entire product family, strong protection of customer models, a secure manufacturing pipeline, and production-ready silicon security. Architect the security foundation for a new generation of AI inference accelerators from the ground up, with direct influence over how customer models and data are protected. Tackle some of the hardest problems in silicon security, from hardware root of trust through confidential computing, at a company building frontier AI infrastructure.

Requirements

• 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.
• Candidates currently authorized to work in the U.S.

Nice To Haves

• 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.

Responsibilities

• 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.
• 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.
• 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.
• Partner with firmware, software, architecture, DFT, validation, manufacturing, and cloud security teams to embed security throughout the product lifecycle.
• 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.
• Apply AI-assisted techniques for threat modeling, security verification, coverage analysis, and documentation.

Benefits

• 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
• Unlimited paid time off
• 13 paid company holidays
• Remote-first culture with a company-provided computer and home office setup
• Competitive salary and equity
• 401(k) with company matching, eligible from day one
• Visa Support (H-1B visa transfers for eligible candidates)

What This Job Offers

• Job Type: Full-time
• Career Level: Principal
• Education Level: No Education Listed