Security Engineer, Cloud

Fluidstack

$120K — $160K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5-7 years of hands-on experience securing production cloud or bare-metal infrastructure
  • Proven track record of shipping widely adopted security tooling
  • Experience in identifying and resolving isolation or privilege-escalation vulnerabilities
  • Proficient in writing production-quality code and treating security policies as software
  • Practical experience in incident response on self-built infrastructure
  • Bonus: Familiarity with Kubernetes and container security, hardware root of trust, eBPF-based detection, and GPU/HPC environments

Responsibilities

  • Own security for cloud and bare-metal control plane used by customers
  • Build security guardrails in code, ensuring secure practices are streamlined for engineers
  • Engineer detection and response capabilities for cloud infrastructure threats
  • Secure the multi-tenant boundary for customer workloads sharing infrastructure
  • Develop policies and conduct scanning to identify security gaps
  • Implement hardening measures focused on identity and workload isolation
  • Manage a proactive security program from inception to execution

Benefits

  • Employee-centric culture with a focus on inclusivity
  • Opportunities for substantial professional growth by building systems from the ground up
  • Work in a dynamic environment addressing cutting-edge technology security challenges
  • Make a direct impact on the security landscape of AI infrastructure
  • Support for ongoing learning and development in an evolving field
Full Job Description
The Security Team

Examples of key problems the team is working on
  • You're securing the frontier of AI. The model weights training on our infrastructure are the most valuable and most targeted artifacts in technology, and we're standing up the compute to hold them faster than anyone ever has. A breach isn't a leak, it's the frontier walking out the door.
  • Build the entire security program from scratch. Most leaders inherit someone else's system and spend a career patching it. Here you own it end to end, bare metal to boardroom, as we scale across continents.
  • Your threat surface is measured in gigawatts. The customers running on our infrastructure are building the most consequential technology in human history, and being responsible for the physical and logical security of that work makes everything else feel small.
Role Scope
  • 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.
What We're Looking For
  • The below is a starting point. We always make space for exceptional people, so if you don't fit this role exactly, tell us where you would.
  • You've secured production cloud or bare-metal infrastructure hands-on, not just audited it.
  • You've shipped security tooling engineers actually adopted.
  • You've found and fixed real isolation or privilege-escalation issues.
  • You write production-quality code and treat policies as software.
  • You've run incident response on infrastructure you helped build.
  • Bonus: Kubernetes and container security. Hardware root of trust and measured boot. eBPF-based detection. GPU and HPC environments.


We are committed to pay equity and transparency.

You will receive a confirmation email once your application has successfully been accepted. If there is an error with your submission and you did not receive a confirmation email, please email [redacted] with your resume/CV, the role you've applied for, and the date you submitted your application-- someone from our recruiting team will be in touch.

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