Security Engineer, Cloud

Fluidstack

$120K — $150K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of hands-on security experience with cloud or bare-metal infrastructure
  • Proven track record of implementing effective security tooling
  • Experience in identifying and mitigating privilege-escalation vulnerabilities
  • Skilled in writing production-quality code and managing security policies as software
  • Demonstrated incident response capability on infrastructure that you have developed
  • Familiarity with Kubernetes, container security, and eBPF detection—bonus for GPU and HPC environments.

Responsibilities

  • Own and secure cloud and bare-metal control planes for customer training operations
  • Build security guardrails as code to streamline secure engineering processes
  • Engineer detection and response mechanisms for cloud infrastructure threats
  • Ensure security across multi-tenant environments hosting sensitive workloads
  • Develop and implement identity and workload isolation measures

Benefits

  • Flexible work arrangements to foster a healthy work-life balance
  • Full support for continuous learning and professional development opportunities
  • Comprehensive health and wellness programs for all employees
  • Access to cutting-edge technology and infrastructure
  • Direct involvement in shaping a new security program from inception to scaling globally
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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