Security Engineer – Network

FluidStack

Security Engineer responsible for network security architecture and incident response at Fluidstack. Securing critical AI infrastructure with innovative security measures.

Posted 7/18/2026full-timeAustin • Texas • 🇺🇸 United StatesMid-LevelSenior💰 $218,000 - $252,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing and defending network security architecture across diverse environments, including data centers and cloud. Proficient in automating security controls and implementing detection mechanisms to safeguard against advanced threats.

Highest-signal resume keywords

Network Security Architecture DesignNetwork Detection and Response (NDR)Infrastructure-as-Code ImplementationOperational Technology (OT) SecuritySegmentation for IT and OT Environments

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Packet Capture AnalysisFlow AnalysisFirewall Rule ManagementSegmentation DesignThreat Hardening

Soft Skills

Collaboration with Network EngineeringProblem-Solving

Tools & Technologies

ZeekSuricataBGPRouting Security

Industry Keywords

Data Center SecurityCloud SecurityOperational Technology (OT)Industrial Control Systems (ICS)

Tech Stack

Tools & technologies

CloudFirewalls

About the role

Key responsibilities & impact

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 the OT and BMS side, where the network touches physical plant, against threats most security teams never see.
Automate network security controls so new sites inherit the architecture on day one.

Requirements

What you’ll need

You've secured production networks at scale, and you read a packet capture as comfortably as a dashboard.
You've designed segmentation for environments that mix IT, OT, and high-value compute.
You've deployed and tuned NDR or flow-based detection that found real intrusions.
You work infrastructure-as-code: your firewall rules live in a repo, not a GUI.
You've partnered with network engineering without becoming the department of no.
Bonus: OT and ICS security. Data center or cloud provider environments. BGP and routing security. Zeek or Suricata.

Benefits

Comp & perks

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