Senior Network Security Engineer – Data Center & Cloud

Cerebras; Sunnyvale (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

Cerebras Systems seeks a Network Security Engineer to build, operate, and secure our global data-center and cloud network infrastructure. This hands-on role focuses on firewalls, segmentation, VPNs, and automation, with regular on-site work in Sunnyvale, CA.

You will work across network security and operations, implementing policies, strengthening access controls, and supporting telemetry, incident response, and reliable connectivity for AI workloads.

Qualifications

• 7+ years in network security, engineering, cloud security, or infra security.
• Hands-on with firewalls, ACLs, segmentation and VPNs.
• Experience operating data center and on-prem networks.
• AWS networking experience (VPCs, security groups, load balancers).
• Proficiency with Terraform, Ansible, Python and GitOps.

Responsibilities

• Operate firewalls, ACLs, segmentation and security controls across data centers and cloud.
• Hands-on data center network operations: deployment, config, troubleshooting, lifecycle.
• Maintain segmentation, firewall, and ACL policies across environments.
• Manage inbound/outbound controls, NAT, load balancers, DNS filtering, proxies.
• Implement and operate VPN, ZTNA, NAC, Wi-Fi and partner connectivity.
• Perform firewall rule reviews and remediation of exposure risks.
• Automate network workflows using Terraform, Ansible, Python, GitOps.
• Support security operations with telemetry, detection and containment.

Skills

Firewalls & ACLs

Segmentation & policy

Routing & Switching

VPN & ZTNA

Network troubleshooting

Documentation

On-site presence

Tools

Terraform

Ansible

Python

GitOps

AWS Networking

Job description

Cerebras Systems seeks a Network Security Engineer to build, operate, and secure our global data-center and cloud network infrastructure. This hands-on role focuses on firewalls, segmentation, VPNs, and automation, with regular on-site work in Sunnyvale, CA.

You will work across network security and operations, implementing policies, strengthening access controls, and supporting telemetry, incident response, and reliable connectivity for AI workloads.