Hardware Security Architect, Principal

Positron Corporation

21h • $200,000 - $350,000 • Remote

About The Position

Positron AI is seeking a Hardware Security Architect to own the hardware security architecture for its AI accelerator platform. The role is responsible for protecting customer models, user data, firmware, intellectual property, and secure operation throughout the product lifecycle, from architecture through production deployment.

The architect will define the platform’s silicon security architecture, including secure boot, hardware root of trust, chain of trust, authenticated firmware, measured boot, secure debug and manufacturing, fuse programming, key provisioning, device identity, key ladders, anti-rollback protections, JTAG security, scan access control, and lifecycle states. The role also protects AI assets through model-weight encryption and authentication, secure data links and interconnects, DRAM encryption, secure DMA, secure memory regions, and confidential computing techniques.

This position performs architecture security reviews and attack modeling across the platform, addressing physical attacks, fault injection, side-channel and replay attacks, firmware compromise, and supply-chain attacks. It partners with firmware, software, architecture, DFT, validation, manufacturing, and cloud security teams to integrate security throughout the product lifecycle. The architect stays current with relevant security standards and emerging areas, and applies AI-assisted techniques to threat modeling, security verification, coverage analysis, and documentation.

Success means delivering security architecture across the product family, strong protection for customer models, a secure manufacturing pipeline, and production-ready silicon security. The role offers the opportunity to shape security for AI inference accelerators and influence how customer models and data are protected. The position is remote-first. The base salary range is $200,000–$350,000, excluding equity and other compensation and benefits. Candidates must already be authorized to work in the U.S.; new visa sponsorship is unavailable, though H-1B transfers may be facilitated for eligible candidates.

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.
• Currently authorized to work in the U.S.; the employer cannot provide new visa sponsorship.

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 and 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, including 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, along with emerging areas such as 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 the employee and 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.

What This Job Offers

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