Security Engineer, Infrastructure

Job Overview

Fluidstack is building the security infrastructure that underpins one of the most consequential computing platforms in the world: data center infrastructure serving frontier AI customers at scale. As a Security Engineer, Infrastructure, you will be the hands-on technical owner of the systems and pipelines that make our security program run: SIEM and date warehouse architecture, data ingestion and enrichment, security tool engineering, and the infrastructure that ties it all together. You will work directly with every other member of the security team, and other technical teams, to design, build, and operationalize a modern security stack from the ground up — spanning IT, OT, cloud, and bare metal environments — and you will embed security rigor into Fluidstack's software development lifecycle as we scale our engineering organization. This is not a role for someone who wants to maintain what already exists. It is a role for someone who wants to build what doesn't yet.

Key Responsibilities

• Play a key role in the design, deployment, and operation of Fluidstack's security tooling and data infrastructure, including log source onboarding, detection engineering, alert tuning, and pipeline management across IT and OT environments


• Help architect and maintain the security data platform — managing ingestion, normalization, enrichment, and routing of security telemetry from endpoints, network infrastructure, cloud environments, OT/ICS systems, and physical security tooling


• Build and manage integrations between security tools and data systems, including EDR, vulnerability management, SOAR, CASB, and identity platforms


• Embed security controls and review processes into the software development lifecycle, including CI/CD pipeline security, secrets management, artifact integrity, and code review support for security-relevant changes


• Develop and maintain tooling for automated security data collection, normalization, and quality validation across diverse source types


• Collaborate with network, infrastructure, and IT teams to ensure security instrumentation is complete and accurate across all Fluidstack environments, including multi-site data center facilities

About You

2+ years designing, implementing, configuring, and/or maintaining security infrastructure and security tooling

Experience with common cloud and virtualization technologies and capabilities

Experience with security system architecture

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.

About Fluidstack

At Fluidstack, we build the compute, data centers, and power that will fuel artificial superintelligence. We supply GWs of compute capabilities to the world’s biggest AI Labs at industry-defining speeds.

Our team is small, fast, and obsessed with quality. We own outcomes end-to-end, challenge assumptions, and treat our customers' problems as our own. No task is beneath anyone here.

There are a few thousand people who will shape the trajectory of superintelligence. Come and be one of them.