Security Architect for Frontier AI Infrastructure

Fluidstack; Sacramento (CA); On-site; USD 180,000 - 260,000; Full time

Job summary

Fluidstack is building civilization-scale AI infrastructure and seeks an security-focused engineer to own the frontier attack surface. You will design architectures that isolate model weights, training environments, and interconnects, ensuring end-to-end security from bare metal to scheduler and storage.

You will translate research into practical security controls, lead design reviews, and adapt security posture as hardware evolves.

Qualifications

• Experience securing AI/ML infrastructure and HPC systems.
• Ability to architect isolation across hardware to application layers.
• Proven track record turning research into deployable security.
• Ability to defend design decisions in architecture reviews.
• Knowledge of confidential computing and cryptographic key custody.

Responsibilities

• Own the attack surface for frontier AI compute environments.
• Design reference architectures and security standards for fast iteration.
• Run security design reviews across bare metal to fabric layers.
• Keep workloads defensible against evolving adversaries.
• Track new accelerators and interconnects to anticipate risk.

Skills

AI security

Security architecture

Threat modelling

ML security

Confidential computing

Security engineering

Tools

Hypervisor security

Firmware security

Kernel isolation

Job description

Fluidstack is building civilization-scale AI infrastructure and seeks an security-focused engineer to own the frontier attack surface. You will design architectures that isolate model weights, training environments, and interconnects, ensuring end-to-end security from bare metal to scheduler and storage.

You will translate research into practical security controls, lead design reviews, and adapt security posture as hardware evolves.