Security Engineer, Infrastructure

Fluidstack; Austin (TX); On-site; USD 170,000 - 220,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Generous PTO policy

Retirement plan

Job summary

Fluidstack in Austin, Texas is looking for a hands-on technical owner for its security program. You will manage the security systems and pipelines to secure AI infrastructure. Ideal candidates will have experience with security tooling, cloud technologies, and data pipelines.

The position offers a competitive compensation package, including a base salary range of $170,000 - $220,000, along with comprehensive benefits.

Qualifications

• Designed, implemented, and maintained security infrastructure and tooling.
• Experience with cloud and virtualization technologies.
• Collaborated across technical teams for accurate instrumentation.

Responsibilities

• Be the hands-on technical owner of security systems and pipelines.
• Design, deploy, and operate security tooling and data infrastructure.
• Embed security into the software development lifecycle.

Skills

Security system architecture

Cloud technologies

Security data pipelines

Collaboration across technical teams

Education

Experience in security tooling

Tools

SIEM

EDR

SOAR

Job description

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.

How We Operate

• Extreme ownership. Full autonomy. Own things end to end often taking on scope outside your core role without being asked to get things done.
• Velocity. We drive everything forward as fast as possible.
• 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.

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

• Be the hands‑on technical owner of the systems and pipelines that make the security program run: SIEM and data‑warehouse architecture, data ingestion and enrichment, and security tool engineering across IT, OT, cloud, and bare metal.
• Design, deploy, and operate security tooling and data infrastructure: log‑source onboarding, detection engineering, alert tuning, and pipeline management across IT and OT.
• Architect and maintain the security data platform: ingestion, normalization, enrichment, and routing of telemetry from endpoints, network, cloud, OT/ICS, and physical security tooling.
• Build and manage integrations across EDR, vulnerability management, SOAR, CASB, and identity platforms.
• Embed security into the software development lifecycle: CI/CD pipeline security, secrets management, artifact integrity, and review of security‑relevant changes.
• Build tooling for automated security‑data collection and quality validation, and partner with network, infrastructure, and IT teams to keep instrumentation complete across multi‑site facilities.

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 have designed, implemented, and maintained security infrastructure and tooling, and you want to build a modern stack from the ground up rather than maintain what exists.
• You know security system architecture and work fluently with cloud and virtualization technologies.
• You build and operate security data pipelines (ingestion, normalization, enrichment, routing) across diverse source types.
• You integrate security tools (EDR, vuln management, SOAR, identity) and embed security into CI/CD.
• You collaborate across technical teams to make instrumentation complete and accurate everywhere.
• Bonus: SIEM and security data‑lake architecture. Detection engineering. OT/ICS security. Infrastructure‑as‑code and pipeline automation.

Salary & Benefits

• Competitive total compensation package (salary + equity).
• Retirement or pension plan, in line with local norms.
• Health, dental, and vision insurance.
• Generous PTO policy, in line with local norms.

The base salary range for this position is $170,000 - $220,000 per year, depending on experience, skills, qualifications, and location. This range represents our good faith estimate of the compensation for this role at the time of posting. Total compensation may also include equity in the form of stock options. 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.