Security Engineer, Network
Austin, TX, New York, NY, San Francisco, CA, U.S. Remote, Seattle, WA$182k - $224kFull-timePosted 3mo ago
About the role
Role focused on designing and defending Fluidstack's network security architecture across data centers, corp, and cloud, building network detection, hardening OT/ICS interfaces, and automating security controls for scalable deployment.
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
- 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'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 telemetry
Nice to have:OT/ICS security
Last updated Sep 1, 2026. Interested? Apply on the company site.
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
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