Security Engineer, Cloud

FluidstackAustin, TX
$218,000 - $252,000

About The Position

Fluidstack is building civilization-scale infrastructure for AI, aiming to deliver 10 to 100s of GWs of compute faster than anyone else. The Security Team is responsible for securing the frontier of AI, protecting the most valuable and targeted artifacts in technology: model weights training on their infrastructure. This role involves building the entire security program from scratch, from bare metal to boardroom, as the company scales across continents. The threat surface is measured in gigawatts, and the responsibility includes the physical and logical security of highly consequential work done by customers building the most consequential technology in human history.

Requirements

  • Secured production cloud or bare-metal infrastructure hands-on, not just audited it.
  • Shipped security tooling engineers actually adopted.
  • Found and fixed real isolation or privilege-escalation issues.
  • Write production-quality code and treat policies as software.
  • Run incident response on infrastructure you helped build.

Nice To Haves

  • Kubernetes and container security.
  • Hardware root of trust and measured boot.
  • eBPF-based detection.
  • GPU and HPC environments.

Responsibilities

  • Own security for the cloud and bare-metal control planes customers' training runs depend on: hardening, identity, and workload isolation.
  • Build guardrails as code: policies, scanning, and paved roads that make the secure path the fast path for engineers.
  • Engineer detection and response across cloud infrastructure, from API abuse to compromised credentials to tenant escape.
  • Secure the multi-tenant boundary where customer workloads, some of the most targeted in AI, share infrastructure.

Benefits

  • pay equity and transparency
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