Principal Network Security Architect

Job summary

Responsibilities

We are seeking a Principal Network Security Architect to lead the design and evolution of the networks that connect Cerebras's data centers, offices, and cloud environments — the foundation that delivers the fastest AI inference on earth to customers like OpenAI and AWS.

• Define and own the architectural roadmap for Cerebras's enterprise, data center, and cloud network estate.
• Co-author secure design and lifecycle management of high-performance data center networking — including spine/leaf, RDMA, and high-bandwidth fabrics supporting wafer-scale compute.
• Build and maintain an AI-agent based analysis and review framework for network changes as well as self-improvement driven by observed network patterns and use cases.
• Partner with Network Security to deliver segmented, zero-trust-aligned network designs across data center and corporate environments.
• Set standards for resiliency, observability, and capacity planning across the global network

What they're looking for

• 10+ years of experience in enterprise and/or data center network engineering, including hands-on design and operations at scale.
• Deep understanding in cloud networking and service mesh, with emphasis on K8s service mesh and virtual networks.
• Deep expertise in routing, switching, and data center fabrics — including BGP, EVPN/VXLAN, and high-bandwidth/low-latency designs.
• Hands-on experience with networking for high-performance compute or AI/ML workloads (RDMA, RoCE, InfiniBand exposure a plus).
• Strong proficiency with network automation — infrastructure as code (Ansible, Terraform), version-controlled configuration, and CI/CD for network change.

Tech stack

• AWS
• Kubernetes
• Terraform