Network Security Engineer for AI Compute Infrastructure

Fluidstack; New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Fluidstack in New York manages civilization-scale AI infrastructure and seeks a Security Engineer to join the Security Team. You will design and defend the network security architecture across data centers, corporate and cloud environments, implementing segmentation, firewalls, and east-west controls at gigawatt scale.

You will build network detection with telemetry and flow analysis across training fabrics and OT networks, harden OT/BMS interfaces, and automate controls so new sites inherit the

Qualifications

• Secured production networks at scale or similar environments.
• Able to read packet captures as comfortably as dashboards.
• Designed segmentation for IT/OT/high-value compute environments.
• Deployed NDR or flow-based detection that found intrusions.
• Experience with infrastructure-as-code for firewall rules.

Responsibilities

• Design and defend the network security architecture across data centers, corp, and cloud: segmentation, firewalls, and east-west controls at gigawatt scale.
• Build network detection: telemetry, flow analysis, and alerting across training fabrics, OT networks, and the WAN.
• Harden OT and BMS interfaces where network touches physical plant."
• Automate security controls so new sites inherit the architecture on day one.

Skills

Production network security

Network segmentation

IaC security

NDR / flow-based detection

Tools

Firewalls

Zeek / Suricata

Job description

Fluidstack in New York manages civilization-scale AI infrastructure and seeks a Security Engineer to join the Security Team. You will design and defend the network security architecture across data centers, corporate and cloud environments, implementing segmentation, firewalls, and east-west controls at gigawatt scale.

You will build network detection with telemetry and flow analysis across training fabrics and OT networks, harden OT/BMS interfaces, and automate controls so new sites inherit the