Senior AI Accelerator Security Architect

Positron AI; United States; On-site; USD 200,000 - 300,000; Full time

Benefits offered by this job

Medical, dental, vision coverage

Life and disability insurance

Remote-first culture

Unlimited PTO

13 company holidays

401(k) with company match

Visa transfer friendly

Job summary

Positron AI is seeking a Senior Hardware Security Architect to own the security architecture for its AI accelerator platform from design through production. You will lead secure boot, root of trust, and machine-learning data protection, while embedding security across firmware, manufacturing, and lifecycle stages.

Lead threat modeling, implement anti-rollback, JTAG protections, and secure memory regions. Collaborate across hardware, firmware, software, validation, and cloud security teams in a

Qualifications

• 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.

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.

Skills

Hardware security architecture

Secure boot

Cryptography

Secure manufacturing

silicon bring-up

HSMs and TPMs

Arm TrustZone

Tools

HSMs

TPMs

Arm TrustZone

Job description

Positron AI is seeking a Senior Hardware Security Architect to own the security architecture for its AI accelerator platform from design through production. You will lead secure boot, root of trust, and machine-learning data protection, while embedding security across firmware, manufacturing, and lifecycle stages.

Lead threat modeling, implement anti-rollback, JTAG protections, and secure memory regions. Collaborate across hardware, firmware, software, validation, and cloud security teams in a