Network Security Engineer
Cerebras builds wafer-scale AI computing systems and a cloud inference platform for training, fine-tuning, and serving AI models.
About Cerebras Systems, Inc.
Cerebras Systems is an AI-infrastructure company founded in 2015. It sells rack-scale wafer-scale computing systems and provides cloud-based, API-accessible AI inference alongside on-premises deployments.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will operate and secure network infrastructure across data centers, cloud environments, and corporate systems. You will manage firewalls, segmentation, access controls, VPNs, routing, switching, and telemetry; automate workflows; troubleshoot network issues; support data center operations; and maintain architecture documentation and runbooks.
Requirements
- At least 7 years of network security, network engineering, cloud security, or infrastructure security experience
- Experience with firewalls, ACLs, segmentation, routing, switching, VPNs, and troubleshooting
- Experience operating data center and on-premises network infrastructure
- Experience with AWS networking, including VPCs, transit gateways, security groups, and load balancers
- Experience with Palo Alto, Juniper, Cloudflare, or similar platforms
- Proficiency with Terraform, Ansible, Python, GitOps, or similar automation tools
- Knowledge of ZTNA, NAC, egress controls, TCP/IP, DNS, and TLS
- Ability to work regularly on-site in Sunnyvale, California
Responsibilities
- Operate firewalls, ACLs, segmentation, and network security controls
- Support data center network deployment, configuration, troubleshooting, maintenance, and lifecycle management
- Implement firewall, ACL, and segmentation policies
- Manage NAT, load balancers, DNS filtering, proxies, and egress policies
- Operate VPN, ZTNA, NAC, Wi-Fi, and partner connectivity
- Review firewall rules and segmentation controls and remediate unnecessary exposure
- Automate network and security workflows with infrastructure automation and policy as code
- Support network telemetry, detection, investigation, and containment
- Troubleshoot routing, switching, TCP/IP, DNS, TLS, and cloud-networking issues
- Maintain network documentation, procedures, and runbooks