Fluidstack
Security Architect, AI Infrastructure
$275K–$344K
San Francisco, CA +4 · On-site · Full-time · Posted Oct 21, 2026
- Location
- San Francisco, CA
New York, NY
Austin, TX
U.S. Remote
Seattle, WA
About the job
Architect security for frontier AI compute infrastructure, defining standards and reviewing systems that protect model weights, training and inference environments, and multi-tenant workloads.
What you'll do
- Own security architecture for model weights custody, environment isolation, accelerator and interconnect security, and multi-tenant boundaries.
- Define reference architectures and standards, and conduct design reviews across bare metal, fabric, scheduler, and storage.
- Track emerging compute technologies and develop security architectures for them.
What they ask for
- Experience securing AI, ML, or HPC infrastructure with highly valuable assets.
- Ability to architect isolation across hardware, firmware, hypervisor, kernel, container, network fabric, and physical layers.
- Understanding of AI compute systems, including accelerators, high-speed interconnects, parallel storage, and schedulers.
- Original systems or ML security work that has been published or shipped.
Nice to have
- Confidential computing and attestation depth; experience with weights or cryptographic key custody at scale.
- Publication record in systems or ML security.
Pay
$275K – $344K (base salary or total pay not specified)
Tools
AI, ML, HPC, hardware, firmware, hypervisor, kernel, container
AI focus
Secures infrastructure used for frontier AI training and inference, including protection of model weights and isolation of AI workloads.
Model-written summary · the original posting is authoritative