[Hiring] Security Engineer, Network @Fluidstack

Role Description

You're securing the frontier of AI. The model weights training on our infrastructure are the most valuable and most targeted artifacts in technology, and we're standing up the compute to hold them faster than anyone ever has. A breach isn't a leak, it's the frontier walking out the door.

• Build the entire security program from scratch.
• Own it end to end, bare metal to boardroom, as we scale across continents.
• Your threat surface is measured in gigawatts.
• Responsible for the physical and logical security of that work.

Role Scope:

• 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.

Company Description

Fluidstack is an Equal Employment Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability and protected veterans’ status, or any other characteristic protected by law. Fluidstack will consider for employment qualified applicants with arrest and conviction records pursuant to applicable law.