← All roles

Network Engineer, Security

Fluidstack· Security & Corp IT
Apply on company site
Austin, TX, New York, NY, San Francisco, CA, Seattle, WA$162k - $202kFull-timePosted 3mo ago

About the role

Role focused on designing and defending Fluidstack’s network security architecture across data centers, corporate, and cloud environments, with emphasis on OT/IT convergence, network detection, and automation of security controls.

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 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.

Qualifications

  • 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.

Skills

Required:Network security architectureNetwork detection and monitoringOT/IT segmentationInfrastructure as code
Last updated Oct 6, 2026. Interested? Apply on the company site.
Fluidstack logo

About Fluidstack

Fluidstack builds civilization-scale infrastructure for AI

Fluidstack builds civilization-scale infrastructure for AI, delivering gigawatts of compute in 6 months. We're leading the deployment of Anthropic's $50B compute build out.

AI infrastructurecompute centershardwaresoftwarepowerdata centersAnthropicfrontier compute
Company profileWebsite

More open roles at Fluidstack