Site Security Lead

About Fluidstack

We exist to make humanity more free. For most of human history, you farmed or you starved. Technology gave people more time for the things they wanted to do, instead of things they had to do. Powerful AI will be the biggest lever for human choice we've ever built - but only if models are aligned with what humanity actually wants. There are groups building AI who don't share these goals. Whoever deploys frontier compute infrastructure fastest will decide whether AI expands human freedom or shrinks it.

We're singularly focused on delivering 10 to 100s of GWs of compute faster than anyone else, rethinking every layer of the stack. We acquire power, design and build data centers, and operate them - with teams spanning hardware and software. Speed and scale are our key differentiators. Come be a part of building civilization-scale infrastructure for AI.

We hire people who care deeply about this problem space. If that is you, please apply!

How We Operate

• Be a barrel. Full autonomy. Own things end to end, take on scope without being asked, no permission required to operate outside your core role.
• Insane urgency. We drive everything forward as fast as possible.
• Reason from first principles. Challenge every assumption. Zero analogy thinking, no egos, the best idea wins.
• Love of the game. The frontier of AI is the most interesting problem of our time. We put in long hours at high intensity to push the frontier forward.
• Build something that actually matters. If you're going to spend your time, spend it on something that matters to the world.

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 accountability for every security system, process, and policy at your site, serving as the single leader responsible for its overall security posture.
• Act as the on-site escalation point for any issue in which security is a stakeholder, whether it originates in physical security, IT, construction, operations, or a customer-facing concern.
• Ensure the guard force, access control, and camera systems on-site are operating as designed, holding contracted vendors accountable to policy and SLA without running their shift-level operations yourself.
• Drive incident response at the site from first notification through resolution and after-action reporting, pulling in the right internal teams and vendors as the situation demands.
• Enforce site security policy and standards, identifying gaps between what's documented and what's actually happening on the ground, and driving corrective action to close them.
• Represent security in site-level planning and decision-making, ensuring security requirements are accounted for in construction, deployment, and operational changes at your site.

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 led site-level security at a data center, critical infrastructure facility, or other high-security site, owning the posture rather than executing a single function within it.
• You've been the go-to escalation point for a facility, the person other teams call first when something security-relevant goes wrong, regardless of which team actually owns the fix.
• You've held guard, access control, and camera vendors accountable to policy and SLA from a leadership seat, without needing to run their day-to-day operations yourself.
• You've driven a security incident to resolution at the site level, coordinating across internal teams and external vendors rather than handling it alone.
• You can read a security policy, spot where the reality on the ground doesn't match it, and get it fixed.
• You communicate clearly and quickly under pressure, because a security event at 2am needs a decision, not a meeting.

Physical Requirements

• Work in non-climate-controlled environments, including active construction areas, data halls, electrical and mechanical rooms, and outdoor spaces. Temperatures can be high or low, and conditions can be humid, loud or dusty.
• Lift, carry, push and pull up to 40 pounds on your own.
• Sit, stand, walk, kneel, bend and crouch for long periods, including full shifts on your feet.
• Wear the required personal protective equipment (PPE), such as hard hats, safety glasses, steel-toed boots, gloves and hearing protection, and follow site safety rules.
• Climb stairs and ladders, and move around equipment, cable trays and uneven surfaces.

We are committed to pay equity and transparency.

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.

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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 careers@fluidstack.io 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.